1988 Pacific hurricane season
Encyclopedia
The 1988 Pacific hurricane season was a Pacific hurricane
season that saw a below-average amount of tropical cyclones form, and that had only one landfalling
storm. It officially began May 15, 1988 in the eastern Pacific, and June 1, 1988 in the central Pacific and lasted until November 30, 1988. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean
. The first named storm, Tropical Storm Aletta, formed on June 16, and the last-named storm, Tropical Storm Miriam, was previously named Hurricane Joan
in the Atlantic Ocean before crossing Central America
and re-emerging in the eastern Pacific; Miriam continued westward and dissipated on November 2.
The season produced 23 tropical depressions, of which 15 attained tropical storm status. Seven storms reached hurricane status, three of which became major hurricanes
. The strongest storm of the season, Hurricane Hector, formed on July 30 to the south of Mexico and reached peak winds of 145 mph (230 km/h)—Category 4 status—before dissipating over open waters on August 9; Hector was never a threat to land. Tropical Storm Gilma was the only cyclone in the season to make landfall, crossing the Hawaiian Islands
, although there were numerous near-misses. Gilma's Hawaiian landfall was unusual, but not unprecedented.
into the Pacific, and another moved from the Central Pacific to the Western Pacific. In the Eastern Pacific, there were seven cyclones peaking as a tropical storm, and six hurricanes, of which two reached Category 3 intensity or higher on the Saffir-Simpson Hurricane Scale
. A tropical storm and a major hurricane occurred in the Central Pacific.
Tropical Storm Gilma made the only landfalls of the season in the Hawaiian Islands, causing some rainfall, but no direct deaths or damage occurred as a result of it. These were the only landfalls in the season that were made, which is unusual as most landfalls in the Eastern Pacific occur on the Mexican coast. This is due to the closeness of the Mexican region to the major source of tropical activity to the west of Central America
. Hurricane Uleki, the strongest hurricane in the Central Pacific region during the season, caused two drownings in Oahu
and heavy waves
hit the coast of the Hawaiian Islands
. Tropical Storm Miriam, the last storm of the season, formed as a result of Hurricane Joan from the Atlantic, and flooding resulted in parts of Central America
, due to heavy rainfall.
band on the north and west sides of the system became well-defined, and anticyclonic outflow
allowed for initial organization. After forming, the depression tracked west-southwestward and intensified due to disrupted outflow from a large air stream disturbance. On June 16, strong convection with spiral banding developed over the depression, although it failed to strengthen further. A low pressure system northwest of the depression in combination with Tropical Storm Aletta to the northeast caused the depression to weaken, and it dissipated on June 18.
and Caribbean Sea
, before crossing over Central America on June 13 and emerging into the warm waters of the east Pacific on June 14. Shortly after, satellite imagery showed good upper-level outflow, although cloud banding remained disorganized. On June 16, the broad circulation better organized on the northeastern section, with deep convection developing. A tropical depression formed later that day about 200 miles (320 km) to the southeast of Acapulco
, Mexico
. It developed further as it moved northward toward the southwest coast of Mexico, and had organized sufficiently to be named Tropical Storm Aletta on June 17. The cyclone drifted north-northwest for the next 36 hours before turning westward, parallel to the Mexican coast. The storm began to lose its convection on June 19 and weakened into a tropical depression later that day. The depression weakened further into a weak low-level circulation before dissipating on June 21. Although Aletta approached the Acapulco
area of the Mexican coast, it did not make landfall.
The portion of coast affected by Aletta received heavy rainfall; unofficial reports state that one person died as a result of the storm, and the storm produced some damage due to rainfall and flooding.
–Guatemala
border, and it intensified into a tropical depression. The cyclone moved northwest then west-northwest over two days. A 40 mph (65 km/h) wind report from a ship on June 21 allowed the depression to be upgraded to Tropical Storm Bud later that day. For the next day, the low-level circulation moved away from its deep convection, dissipating near Acapulco
, Mexico
. A portion of Bud remaining over land may have been part of the reason for the lack of strengthening of the cyclone. No damage or casualties were reported as a result of Bud.
The depression drifted slowly northward, located south of Baja California
, before dissipating just south of the peninsula on July 4, with no circulation or deep convection detected. A small amount of associated rainfall affected Baja California
, as the cyclone passed near the peninsula.
on June 23, and for the next two weeks, moved through the tropical waters of the Atlantic Ocean
and later crossed Central America
. It began developing further when it entered the Pacific Ocean
and became a dense area of moisture and cloudiness. The wave developed into a disturbance on July 8, and attained tropical depression status in the afternoon on July 8, south of Mexico. After entering a favorable area of warm waters, the depression strengthened to Tropical Storm Carlotta on July 9. Carlotta continued to develop, reached peak strength, and developed into Hurricane Carlotta on July 11. During the duration of the storm, Carlotta was not considered a hurricane, however after post-season reanalysis Carlotta's strength was upgraded to minimal hurricane status. As it moved into less favorable conditions it lost strength and weakened to a tropical storm on July 12. Carlotta began to lose its deep convection, and weakened into a tropical depression on July 13 as it moved into cooler waters. It later moved west-southwest and dissipated on July 15.
on July 4, and moved through tropical regions of the northern Atlantic and Caribbean Sea
without the indication of development. The tropical disturbance crossed Central America
on July 14, and from then until July 18, the westward motion decreased, as convection and organization increased over warm waters. It developed into a tropical depression on July 19, and into Tropical Storm Daniel 600 miles (965.6 km) southwest of the southern tip of Baja California on July 20. A high pressure system over the western United States and northern Mexico
forced Daniel and an upper-level low on parallel west-northwest paths. Daniel stayed generally the same strength for the next few days, reaching peak strength on July 23. Daniel declined into a tropical depression on July 25 and dissipated on July 26.
and crossed the Atlantic Ocean. It crossed into the Pacific Ocean on July 24, developing convection and outflow. On July 27, it organized into a tropical depression off the southwest coast of Mexico. Continuing generally westward, the thunderstorm activity fluctuated, and slowly developing, it intensified into Tropical Storm Emilia on July 29. The storm attained peak winds of 70 mph (110 km/h) on July 30, although wind shear and interaction with nearby Tropical Storm Fabio prevented further intensification; the low-level circulation was located along the northwest edge of the deepest convection. It became disorganized and difficult to locate on satellite imagery, and soon the circulation was exposed from the thunderstorms. On August 1, Emilia weakened to tropical depression status, and late on August 2, the last advisory was issued as the system had become very disorganized with minimal convection. Its remnants were tracked for the next few days, and although some deep convection returned momentarily, the system's convection soon disappeared.
disturbance with deep convection organized further over the northeastern Pacific Ocean
on July 28. It developed into a tropical depression later that day, while 1000 miles (1,609.3 km) southwest of the southern tip of Baja California
. The position of Fabio's formation was much further south and west than where most tropical cyclones form during the same time period. The depression moved westward while gradually strengthening and it developed into Tropical Storm Fabio on July 29. It intensified further over the next few days and it intensified into a hurricane on July 31. The system increased its speed as it steadily strengthened further. A trough
turned the storm west-northwestward on August 3. Satellite estimates indicated that Fabio reached its maximum intensity later on August 3, with a well-defined eye with very deep convection surrounding it. The Central Pacific Hurricane Center
issued a tropical storm watch for the Big Island
on August 4, due to the threatening west-northwest turn towards it. However, the retreat of a trough later turned Fabio back to the west and the CPHC discontinued the tropical storm watch on August 5. Fabio's good upper-level conditions later weakened and began to lose its convection over cooler waters. Fabio quickly weakened and it weakened into a tropical storm again later on August 5, and back to a depression on August 6. The depression turned west-northwestward again on August 8, but Fabio dissipated on August 9. As the cyclone moved near the Hawaii
an islands, heavy rainfall fell across the chain, peaking at 18.75 inches (476 mm) near Pāpa'ikou
on the island of Hawaii
.
The cyclone weakened as the depression to the southwest strengthened further. Limited deep convection developed with the system, although the cyclone continued in unfavorable conditions with shearing. Visible satellite imagery later showed a very weak system, and the storm dissipated on July 29.
, but dissipated near Oahu
on August 3. On the Hawaiian Islands
there were no direct damage or deaths, although some rainfall occurred on the islands.
, Mexico
. The depression tracked west-northwestward, becoming Tropical Storm Hector on July 31. Its west-northwest motion continued, due to an area of high pressure to its north, and Hector intensified into a hurricane on August 2. Based on satellite data, the hurricane is estimated to have reached its peak intensity of 145 mph (235 km/h) on August 3; this made Hector a Category 4 hurricane on the Saffir-Simpson Hurricane Scale
, which was the strongest storm of the season. Hector began to move due west on August 5 and it had already begun weakening. The storm continued westward increasing its forward speed. On August 6 it had appeared Hector had strengthened, but steadily weakened afterwards and finally dissipated on August 9, while 650 miles (1,045 km) east of Hilo, Hawaii
. Hector maintained an eye throughout its existence as a hurricane, and was never a threat to land.
, Mexico
. It developed into Tropical Storm Iva on August 6. Iva turned on a west-northwestward course and continued strengthening, before it developed into a hurricane on August 7. The cyclone moved northwestward after becoming a hurricane, and satellites estimate it reached peak intensity on August 8. On the same day Iva passed within 50 miles (80 km) of Socorro Island
. Winds of 45 mph (70 km/h) were reported on the island along with moderate rain. The storm moved through cooler waters for the next day, and began to weaken. Ivo declined into a tropical storm again on August 9, and by August 10 the cyclone lost its deep convection along with organization. It intensified into a tropical depression again on August 11, and moved southwest due to a high pressure before dissipating on August 3. For unknown reasons, Iva was retired from the lists of
Eastern Pacific storm names, but it was probably to avoid confusion with Hurricane Iwa
of the 1982 Pacific season, which was itself retired due to its damage in Hawaii. The name was replaced with Ileana for 1994.
, Mexico
, based on satellite estimates. The cyclone progressed slowly northwestward, and intensified Tropical Storm John on August 17, less than 24 hours after its formation. John continued northwest for a short while, before the low-level center of circulation had been exposed. John degenerated to a tropical depression on August 18 due to a lack of convection, made a loop while less than 100 miles (160 km) south of the southern tip of Baja California
. It shortly became a little better organized after completing the loop on August 20, but John dissipated on August 21, southwest of Baja California, due to shearing and cold waters. Its remnants continued northwestward parallel to the southwest coast of Baja California. John caused no reported deaths or damage.
organized into Tropical Depression Fifteen-E. Initially, the system moved northwest towards cooler waters as the location of the low-level circulation was to the southwest of the deep convection associated with the cyclone. The center drifted to the east of the small area of concentrated convection, and its intensity remained steady.
It weakened and became loosely defined due to upper-level wind shear
, and the storm lost all of its convection before dissipating and degenerating into a low-level swirl.
began to be monitored. On August 28, this tropical disturbance organized into a tropical depression, as it was located about 800 miles (1,285 km) southeast of the Big Island
. It intensified at a fair rate, and intensified Tropical Storm Uleki the next day. It continued to strengthen, and reached hurricane intensity on August 31. It moved slowly west-northwest until steering currents collapsed on September 1. Now a Category 3 hurricane, Uleki slowly edged north towards the Hawaiian Islands
. After looping, Uleki resumed its westward path on September 4. Its stalling in the ocean had weakened it, and the hurricane passed midway between Johnston Island and French Frigate Shoals. Uleki crossed the dateline on September 7. It turned slightly to the north and meandered in the open Pacific days until it dissipated on September 14.
As Uleki drifted towards the Hawaiian Islands, tropical storm watches were issued for Oahu, Kauai, and Niihau on September 3. In addition, reconnaissance missions were flown into the hurricane. Uleki caused heavy surf on the Hawaiian Islands, that being its only significant effect. This heavy surf flooded the southeastern runway on Midway Island
, and produced two drownings on Oahu. Nineteen people were also rescued from rough surf, with five- to six-foot (1.5 to 1.8 meter) waves, off the coast of beaches in Hawaii
.
, until August 19 when convection began to form. On August 20 the disturbance turned into Tropical Depression Six in the Atlantic basin. It passed from the Leeward Islands
up to the central Caribbean
, until it dissipated on August 23. As it passed over Central America
, the disturbance had little remaining convection. However, the convection associated with the system began to organize when it entered the Pacific, and it strengthened into a tropical depression on August 29, while located 300 miles (485 km) south-southeast of Acapulco
, Mexico
. Later that day the depression intensified into Tropical Storm Kristy, based on ship reports of tropical storm force winds. Kristy strengthened into a hurricane on August 31, based solely on satellite imagery. Hurricane Kristy had short lifespan though, and weakened to a tropical storm on September 2. The easterly shear associated with an anticyclone south of Baja California
, which caused Kristy's convection to be forced west of the low-level center of the system, and therefore weakened it. Kristy weakened further to a depression on September 3, and weak steering currents allowed the cyclone to remain stationary on September 4, loop the following day, and then began to move eastward. The depression dissipated on September 6, weakening to a low-level swirl. Kristy caused heavy rains and flooding in the Mexican states of Chiapas
and Oaxaca
. More than 20,000 people were evacuated, and a state of emergency
was declared. No official casualty or damage figures were reported by the Mexican government.
moved over the mountainous areas of Mexico
, passing into the Pacific from the Pacific coast of Mexico near Manzanillo
. The disturbance moved towards the north-northwest and organized into a tropical depression on September 6 just south of the Gulf of California
. The cyclone remained stationary due to weak low-level steering currents, later drifting to the north-northwest with an area of deep convection causing rain on the Mexican coast. It later moved to the northwest, with partial exposure of the center of the system, and with some shear still affecting it.
The cyclone continued to have shear over the system, which caused it not to strengthen, and its movement became nearly stationary. After remaining stationary longer, the system dissipated as a low-level swirl.
The cyclone became poorly defined, and its movement turned stationary on September 14. The low-level circulation of the system remained visible, even though it weakened due to shearing. Little deep convection remained associated with the system, and the cyclone stayed stationary. The depression having no remaining convection and having become just a low-level cloud swirl, dissipated on September 15.
reconnaissance plane showing tropical storm force winds. It therefore intensified into Tropical Storm Wila on September 25. Wila, however, weakened within a day, and therefore became a tropical depression. The remnant low of Wila produced some heavy rain over the Hawaiian Islands
on September 26 and 27.
, and into the ITCZ
of the eastern Pacific on September 20. The system developed organized deep convection, and strengthened into a tropical depression on September 21, while 300 miles (485 km) southeast of Acapulco
, Mexico
. As the low-level circulation organized further in the depression it intensified into Tropical Storm Lane, later on September 21. Lane developed further with an upper-level outflow pattern, and the cyclone turned into a hurricane on September 23. Later on September 23 and on September 24, an eye
appeared on satellite imagery. A trough
to the northwest of Lane disturbed its upper-level outflow on September 24. Diminishing convection and loss of its eye caused Lane to weaken to a tropical storm on September 27, and into a depression on September 28. Later on September 28, the cyclone moved into cooler waters and Lane lost nearly all of its deep convection. It weakened into a low-level swirl, and Lane dissipated on September 30. Lane caused no reported casualties or damage.
. Strong vertical southwesterly wind shear affected the cyclone, with the center of circulation later seen on the west side of the lessening amount of deep convection. The system remained poorly organized and had trouble strengthening to this continual poor organization as it moved westward.
The system could not be located on satellite imagery and therefore dissipated on October 12.
Miriam brought heavy rains to parts of Central America. Isolated flooding and mudslides happened, although casualties and damage reports are not available. 10.37 inches (263 mm) of rain fell in Kantunilkin/Lazaro Cardenas
, Mexico
as a result of Miriam and the former Joan. Guatemala's
ports along its Pacific
coast were closed and people in El Salvador
were evacuated from low-lying areas due to the storm. Miriam then turned away from Central America and weakened to a depression. The depression survived for over a week until it dissipated on October 30. Tropical Depression Miriam's remnants regenerated the next day, and Miriam finally dissipated on November 2.
The table on the right shows the Accumulated Cyclone Energy
for each storm in the season. ACE is a measure of the power of a tropical cyclones multiplied by the length of time it existed, so storms that last a long time, as well as particularly strong tropical cyclones, have high ACEs. ACE is only calculated for full advisories on tropical systems at or exceeding 34 knots (39 mph, 63 km/h) or tropical storm strength.
The figures in parentheses are for storms in the Central Pacific basin west of 140°W; those not in parenthesis are for the Eastern Pacific basin.
The cumulative ACE for the Eastern Pacific this season fell within the official "Near Normal" grading.
. This is the same list used for the 1982 season
. Names that were not assigned are marked in gray.
Two names from the Central Pacific list were used – Uleki and Wila, both being their first usage.
retired one name in the spring of 1989: Iva. Ileana replaced the name of Iva in the 1994 season
.
Pacific hurricane
A Pacific hurricane or tropical storm is a tropical cyclone that develops in the northeastern part of the Pacific Ocean. For organizational purposes, the northern Pacific Ocean is divided into three regions: the eastern, , central , and western...
season that saw a below-average amount of tropical cyclones form, and that had only one landfalling
Landfall (meteorology)
Landfall is the event of a tropical cyclone or a waterspout coming onto land after being over water. When a waterspout makes landfall it is reclassified as a tornado, which can then cause damage inland...
storm. It officially began May 15, 1988 in the eastern Pacific, and June 1, 1988 in the central Pacific and lasted until November 30, 1988. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
. The first named storm, Tropical Storm Aletta, formed on June 16, and the last-named storm, Tropical Storm Miriam, was previously named Hurricane Joan
Hurricane Joan-Miriam
Hurricane Joan was a powerful hurricane that caused death and destruction in over a dozen countries in the Caribbean and Central America. Moving on a due west course for nearly two weeks in October 1988, Hurricane Joan caused widespread flooding and over 200 deaths after moving into Central America...
in the Atlantic Ocean before crossing Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
and re-emerging in the eastern Pacific; Miriam continued westward and dissipated on November 2.
The season produced 23 tropical depressions, of which 15 attained tropical storm status. Seven storms reached hurricane status, three of which became major hurricanes
Tropical cyclone scales
Tropical systems are officially ranked on one of several tropical cyclone scales according to their maximum sustained winds and in what oceanic basin they are located...
. The strongest storm of the season, Hurricane Hector, formed on July 30 to the south of Mexico and reached peak winds of 145 mph (230 km/h)—Category 4 status—before dissipating over open waters on August 9; Hector was never a threat to land. Tropical Storm Gilma was the only cyclone in the season to make landfall, crossing the Hawaiian Islands
Hawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
, although there were numerous near-misses. Gilma's Hawaiian landfall was unusual, but not unprecedented.
Seasonal summary
The total tropical activity in the season was below-average. There were 13 cyclones in the Eastern Pacific, as well as two in the Central. Of the 15 cyclones, one crossed from the Atlantic OceanAtlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...
into the Pacific, and another moved from the Central Pacific to the Western Pacific. In the Eastern Pacific, there were seven cyclones peaking as a tropical storm, and six hurricanes, of which two reached Category 3 intensity or higher on the Saffir-Simpson Hurricane Scale
Saffir-Simpson Hurricane Scale
The Saffir–Simpson Hurricane Scale , or the Saffir–Simpson Hurricane Wind Scale , classifies hurricanes — Western Hemisphere tropical cyclones that exceed the intensities of tropical depressions and tropical storms — into five categories distinguished by the intensities of their sustained winds...
. A tropical storm and a major hurricane occurred in the Central Pacific.
Tropical Storm Gilma made the only landfalls of the season in the Hawaiian Islands, causing some rainfall, but no direct deaths or damage occurred as a result of it. These were the only landfalls in the season that were made, which is unusual as most landfalls in the Eastern Pacific occur on the Mexican coast. This is due to the closeness of the Mexican region to the major source of tropical activity to the west of Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
. Hurricane Uleki, the strongest hurricane in the Central Pacific region during the season, caused two drownings in Oahu
Oahu
Oahu or Oahu , known as "The Gathering Place", is the third largest of the Hawaiian Islands and most populous of the islands in the U.S. state of Hawaii. The state capital Honolulu is located on the southeast coast...
and heavy waves
WAVES
The WAVES were a World War II-era division of the U.S. Navy that consisted entirely of women. The name of this group is an acronym for "Women Accepted for Volunteer Emergency Service" ; the word "emergency" implied that the acceptance of women was due to the unusual circumstances of the war and...
hit the coast of the Hawaiian Islands
Hawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
. Tropical Storm Miriam, the last storm of the season, formed as a result of Hurricane Joan from the Atlantic, and flooding resulted in parts of Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
, due to heavy rainfall.
Tropical Depression One-E
A tropical disturbance organized into the first eastern Pacific tropical depression of the season on June 15. A convectiveAtmospheric convection
Atmospheric convection is the result of a parcel-environment instability, or temperature difference, layer in the atmosphere. Different lapse rates within dry and moist air lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to...
band on the north and west sides of the system became well-defined, and anticyclonic outflow
Outflow (meteorology)
Outflow, in meteorology, is air that flows outwards from a storm system. It is associated with ridging, or anticyclonic flow. In the low levels of the troposphere, outflow radiates from thunderstorms in the form of a wedge of rain-cooled air, which is visible as a thin rope-like cloud on weather...
allowed for initial organization. After forming, the depression tracked west-southwestward and intensified due to disrupted outflow from a large air stream disturbance. On June 16, strong convection with spiral banding developed over the depression, although it failed to strengthen further. A low pressure system northwest of the depression in combination with Tropical Storm Aletta to the northeast caused the depression to weaken, and it dissipated on June 18.
Tropical Storm Aletta
A tropical wave moved off the coast of Africa and progressed westward through the Atlantic OceanAtlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...
and Caribbean Sea
Caribbean Sea
The Caribbean Sea is a sea of the Atlantic Ocean located in the tropics of the Western hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles, and to the east by the Lesser Antilles....
, before crossing over Central America on June 13 and emerging into the warm waters of the east Pacific on June 14. Shortly after, satellite imagery showed good upper-level outflow, although cloud banding remained disorganized. On June 16, the broad circulation better organized on the northeastern section, with deep convection developing. A tropical depression formed later that day about 200 miles (320 km) to the southeast of Acapulco
Acapulco
Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. It developed further as it moved northward toward the southwest coast of Mexico, and had organized sufficiently to be named Tropical Storm Aletta on June 17. The cyclone drifted north-northwest for the next 36 hours before turning westward, parallel to the Mexican coast. The storm began to lose its convection on June 19 and weakened into a tropical depression later that day. The depression weakened further into a weak low-level circulation before dissipating on June 21. Although Aletta approached the Acapulco
Acapulco
Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...
area of the Mexican coast, it did not make landfall.
The portion of coast affected by Aletta received heavy rainfall; unofficial reports state that one person died as a result of the storm, and the storm produced some damage due to rainfall and flooding.
Tropical Storm Bud
Satellite imagery first detected a low-level circulation on June 20, associated with some heavy convection, 200 miles (325 km) south of the MexicoMexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
–Guatemala
Guatemala
Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...
border, and it intensified into a tropical depression. The cyclone moved northwest then west-northwest over two days. A 40 mph (65 km/h) wind report from a ship on June 21 allowed the depression to be upgraded to Tropical Storm Bud later that day. For the next day, the low-level circulation moved away from its deep convection, dissipating near Acapulco
Acapulco
Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. A portion of Bud remaining over land may have been part of the reason for the lack of strengthening of the cyclone. No damage or casualties were reported as a result of Bud.
Tropical Depression Four-E
A system developed in the eastern Pacific, and later strengthened into a tropical depression on July 1, when it obtained a better defined low-level circulation. The center was exposed, with little convection on the northeast side, due to shear aloft. The system moved to the northwest, while shear continued to move the deep convection of the cyclone to the southwest of its center of circulation. The circulation completely lacked deep convection late on July 2, although it continued to have a well-defined low-level center.The depression drifted slowly northward, located south of Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
, before dissipating just south of the peninsula on July 4, with no circulation or deep convection detected. A small amount of associated rainfall affected Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
, as the cyclone passed near the peninsula.
Hurricane Carlotta
A tropical wave moved off the western coast of AfricaAfrica
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
on June 23, and for the next two weeks, moved through the tropical waters of the Atlantic Ocean
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...
and later crossed Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
. It began developing further when it entered the Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
and became a dense area of moisture and cloudiness. The wave developed into a disturbance on July 8, and attained tropical depression status in the afternoon on July 8, south of Mexico. After entering a favorable area of warm waters, the depression strengthened to Tropical Storm Carlotta on July 9. Carlotta continued to develop, reached peak strength, and developed into Hurricane Carlotta on July 11. During the duration of the storm, Carlotta was not considered a hurricane, however after post-season reanalysis Carlotta's strength was upgraded to minimal hurricane status. As it moved into less favorable conditions it lost strength and weakened to a tropical storm on July 12. Carlotta began to lose its deep convection, and weakened into a tropical depression on July 13 as it moved into cooler waters. It later moved west-southwest and dissipated on July 15.
Tropical Storm Daniel
A tropical wave moved off the coast of northwestern AfricaAfrica
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
on July 4, and moved through tropical regions of the northern Atlantic and Caribbean Sea
Caribbean Sea
The Caribbean Sea is a sea of the Atlantic Ocean located in the tropics of the Western hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles, and to the east by the Lesser Antilles....
without the indication of development. The tropical disturbance crossed Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
on July 14, and from then until July 18, the westward motion decreased, as convection and organization increased over warm waters. It developed into a tropical depression on July 19, and into Tropical Storm Daniel 600 miles (965.6 km) southwest of the southern tip of Baja California on July 20. A high pressure system over the western United States and northern Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
forced Daniel and an upper-level low on parallel west-northwest paths. Daniel stayed generally the same strength for the next few days, reaching peak strength on July 23. Daniel declined into a tropical depression on July 25 and dissipated on July 26.
Tropical Storm Emilia
On July 15, a tropical wave exited AfricaAfrica
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
and crossed the Atlantic Ocean. It crossed into the Pacific Ocean on July 24, developing convection and outflow. On July 27, it organized into a tropical depression off the southwest coast of Mexico. Continuing generally westward, the thunderstorm activity fluctuated, and slowly developing, it intensified into Tropical Storm Emilia on July 29. The storm attained peak winds of 70 mph (110 km/h) on July 30, although wind shear and interaction with nearby Tropical Storm Fabio prevented further intensification; the low-level circulation was located along the northwest edge of the deepest convection. It became disorganized and difficult to locate on satellite imagery, and soon the circulation was exposed from the thunderstorms. On August 1, Emilia weakened to tropical depression status, and late on August 2, the last advisory was issued as the system had become very disorganized with minimal convection. Its remnants were tracked for the next few days, and although some deep convection returned momentarily, the system's convection soon disappeared.
Hurricane Fabio
A well-organized ITCZIntertropical Convergence Zone
The Intertropical Convergence Zone , known by sailors as The Doldrums, is the area encircling the earth near the equator where winds originating in the northern and southern hemispheres come together....
disturbance with deep convection organized further over the northeastern Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
on July 28. It developed into a tropical depression later that day, while 1000 miles (1,609.3 km) southwest of the southern tip of Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
. The position of Fabio's formation was much further south and west than where most tropical cyclones form during the same time period. The depression moved westward while gradually strengthening and it developed into Tropical Storm Fabio on July 29. It intensified further over the next few days and it intensified into a hurricane on July 31. The system increased its speed as it steadily strengthened further. A trough
Trough (meteorology)
A trough is an elongated region of relatively low atmospheric pressure, often associated with fronts.Unlike fronts, there is not a universal symbol for a trough on a weather chart. The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked...
turned the storm west-northwestward on August 3. Satellite estimates indicated that Fabio reached its maximum intensity later on August 3, with a well-defined eye with very deep convection surrounding it. The Central Pacific Hurricane Center
Central Pacific Hurricane Center
The Central Pacific Hurricane Center of the United States National Weather Service is the official body responsible for tracking and issuing tropical cyclone warnings, watches, advisories, discussions, and statements for the Central North Pacific Basin...
issued a tropical storm watch for the Big Island
Hawaii (island)
The Island of Hawaii, also called the Big Island or Hawaii Island , is a volcanic island in the North Pacific Ocean...
on August 4, due to the threatening west-northwest turn towards it. However, the retreat of a trough later turned Fabio back to the west and the CPHC discontinued the tropical storm watch on August 5. Fabio's good upper-level conditions later weakened and began to lose its convection over cooler waters. Fabio quickly weakened and it weakened into a tropical storm again later on August 5, and back to a depression on August 6. The depression turned west-northwestward again on August 8, but Fabio dissipated on August 9. As the cyclone moved near the Hawaii
Hawaii
Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...
an islands, heavy rainfall fell across the chain, peaking at 18.75 inches (476 mm) near Pāpa'ikou
Papa'ikou, Hawai'i
Papaikou is a census-designated place in Hawaii County, Hawaii, United States. The population was 1,414 at the 2000 census.-Geography:Papaikou is located at ....
on the island of Hawaii
Hawaii (island)
The Island of Hawaii, also called the Big Island or Hawaii Island , is a volcanic island in the North Pacific Ocean...
.
Tropical Depression Nine-E
A tropical depression developed in the eastern Pacific on July 28, forecast to be absorbed by a very close nearby depression, later Tropical Storm Gilma. The depression moved northward, although in unfavorable conditions.The cyclone weakened as the depression to the southwest strengthened further. Limited deep convection developed with the system, although the cyclone continued in unfavorable conditions with shearing. Visible satellite imagery later showed a very weak system, and the storm dissipated on July 29.
Tropical Storm Gilma
A wave that previously moved through the Atlantic from the northwest coast of Africa, crossed over Central America into the Pacific on July 17 or July 18. On July 19, this disturbance was 700 miles (1125 km) to the southeast of the developing Tropical Storm Daniel. The system moved westward for the following week without any signs of intensification. However on July 26 and 27, the system appeared to be strengthening due to a banding pattern. By July 28, the convection underwent further organization with some weak outflow high in the storm. It developed into a tropical depression later on July 28, much further west then most east Pacific storms develop at. For the next day the cyclone remained fairly stationary, but began to strengthen over warm waters. On July 29 the depression strengthened into Tropical Storm Gilma, based on satellite imagery. Limited intensification followed, due to shear high in the storm. It weakened a tropical depression again on July 30, due to weakness depicted in satellite imagery. Gilma then moved west-northwestward through the northeast Pacific. The depression skirted the Hawaiian IslandsHawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
, but dissipated near Oahu
Oahu
Oahu or Oahu , known as "The Gathering Place", is the third largest of the Hawaiian Islands and most populous of the islands in the U.S. state of Hawaii. The state capital Honolulu is located on the southeast coast...
on August 3. On the Hawaiian Islands
Hawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
there were no direct damage or deaths, although some rainfall occurred on the islands.
Hurricane Hector
A tropical depression formed on July 30, while 400 miles (645 km) south of AcapulcoAcapulco
Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. The depression tracked west-northwestward, becoming Tropical Storm Hector on July 31. Its west-northwest motion continued, due to an area of high pressure to its north, and Hector intensified into a hurricane on August 2. Based on satellite data, the hurricane is estimated to have reached its peak intensity of 145 mph (235 km/h) on August 3; this made Hector a Category 4 hurricane on the Saffir-Simpson Hurricane Scale
Saffir-Simpson Hurricane Scale
The Saffir–Simpson Hurricane Scale , or the Saffir–Simpson Hurricane Wind Scale , classifies hurricanes — Western Hemisphere tropical cyclones that exceed the intensities of tropical depressions and tropical storms — into five categories distinguished by the intensities of their sustained winds...
, which was the strongest storm of the season. Hector began to move due west on August 5 and it had already begun weakening. The storm continued westward increasing its forward speed. On August 6 it had appeared Hector had strengthened, but steadily weakened afterwards and finally dissipated on August 9, while 650 miles (1,045 km) east of Hilo, Hawaii
Hawaii
Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...
. Hector maintained an eye throughout its existence as a hurricane, and was never a threat to land.
Hurricane Iva
A wave that first came off the northwest coast of Africa moved through the Atlantic, before entering the East Pacific on August 4. The wave developed more organized convection when it entered the region, and it turned into a tropical depression on August 5, while 165 miles (270 km) south of OaxacaOaxaca
Oaxaca , , officially Estado Libre y Soberano de Oaxaca is one of the 31 states which, along with the Federal District, comprise the 32 federative entities of Mexico. It is divided into 571 municipalities; of which 418 are governed by the system of customs and traditions...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. It developed into Tropical Storm Iva on August 6. Iva turned on a west-northwestward course and continued strengthening, before it developed into a hurricane on August 7. The cyclone moved northwestward after becoming a hurricane, and satellites estimate it reached peak intensity on August 8. On the same day Iva passed within 50 miles (80 km) of Socorro Island
Socorro Island
Socorro Island is a small volcanic island in the Revillagigedo Islands, a Mexican possession lying some 600 kilometers off the country's western coast at 18°48'N, 110°59'W. The size is 16.5 by 11.5 km, with an area of 132 km².- Geology :...
. Winds of 45 mph (70 km/h) were reported on the island along with moderate rain. The storm moved through cooler waters for the next day, and began to weaken. Ivo declined into a tropical storm again on August 9, and by August 10 the cyclone lost its deep convection along with organization. It intensified into a tropical depression again on August 11, and moved southwest due to a high pressure before dissipating on August 3. For unknown reasons, Iva was retired from the lists of
Eastern Pacific storm names, but it was probably to avoid confusion with Hurricane Iwa
Hurricane Iwa
Hurricane Iwa, taken from the Hawaiian language name for the frigatebird , was at the time the costliest hurricane to affect the state of Hawaii. Iwa was the twenty-third tropical storm and the twelfth and final hurricane of the 1982 Pacific hurricane season. It developed from an active trough of...
of the 1982 Pacific season, which was itself retired due to its damage in Hawaii. The name was replaced with Ileana for 1994.
Tropical Depression Thirteen-E
A tropical depression formed on August 12, with movement towards the west-northwest. It continued toward the west-northwest, near the circulation of Tropical Storm Iva. The low-level circulation of the cyclone was displaced to the east of the deep convection, and the system moved to the northwest. The depression lost much of its convection later on August 13, and it had a less defined center. The cyclone turned to the south, and lost its associated deep convection. Some weak convection redeveloped near the center, but the depression dissipated later on August 14.Tropical Storm John
A disturbance that passed off the northwestern African coast on August 3 crossed the Atlantic Ocean, before entering into the Pacific. A tropical depression formed in the East Pacific on August 16, 150 miles (240 km) southwest of ManzanilloManzanillo, Colima
The name Manzanillo refers to the city as well as its surrounding municipality in the Mexican state of Colima. The city, located on the Pacific Ocean, contains Mexico's busiest port. Manzanillo was the third port created by the Spanish in the Pacific during the New Spain period...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
, based on satellite estimates. The cyclone progressed slowly northwestward, and intensified Tropical Storm John on August 17, less than 24 hours after its formation. John continued northwest for a short while, before the low-level center of circulation had been exposed. John degenerated to a tropical depression on August 18 due to a lack of convection, made a loop while less than 100 miles (160 km) south of the southern tip of Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
. It shortly became a little better organized after completing the loop on August 20, but John dissipated on August 21, southwest of Baja California, due to shearing and cold waters. Its remnants continued northwestward parallel to the southwest coast of Baja California. John caused no reported deaths or damage.
Tropical Depression Fifteen-E
On August 26, a disturbance south of Baja CaliforniaBaja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
organized into Tropical Depression Fifteen-E. Initially, the system moved northwest towards cooler waters as the location of the low-level circulation was to the southwest of the deep convection associated with the cyclone. The center drifted to the east of the small area of concentrated convection, and its intensity remained steady.
It weakened and became loosely defined due to upper-level wind shear
Wind shear
Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere...
, and the storm lost all of its convection before dissipating and degenerating into a low-level swirl.
Hurricane Uleki
Towards the end of August, tropical activity in the ITCZ southeast of the Hawaiian IslandsHawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
began to be monitored. On August 28, this tropical disturbance organized into a tropical depression, as it was located about 800 miles (1,285 km) southeast of the Big Island
Hawaii (island)
The Island of Hawaii, also called the Big Island or Hawaii Island , is a volcanic island in the North Pacific Ocean...
. It intensified at a fair rate, and intensified Tropical Storm Uleki the next day. It continued to strengthen, and reached hurricane intensity on August 31. It moved slowly west-northwest until steering currents collapsed on September 1. Now a Category 3 hurricane, Uleki slowly edged north towards the Hawaiian Islands
Hawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
. After looping, Uleki resumed its westward path on September 4. Its stalling in the ocean had weakened it, and the hurricane passed midway between Johnston Island and French Frigate Shoals. Uleki crossed the dateline on September 7. It turned slightly to the north and meandered in the open Pacific days until it dissipated on September 14.
As Uleki drifted towards the Hawaiian Islands, tropical storm watches were issued for Oahu, Kauai, and Niihau on September 3. In addition, reconnaissance missions were flown into the hurricane. Uleki caused heavy surf on the Hawaiian Islands, that being its only significant effect. This heavy surf flooded the southeastern runway on Midway Island
Midway Atoll
Midway Atoll is a atoll in the North Pacific Ocean, near the northwestern end of the Hawaiian archipelago, about one-third of the way between Honolulu, Hawaii, and Tokyo, Japan. Unique among the Hawaiian islands, Midway observes UTC-11 , eleven hours behind Coordinated Universal Time and one hour...
, and produced two drownings on Oahu. Nineteen people were also rescued from rough surf, with five- to six-foot (1.5 to 1.8 meter) waves, off the coast of beaches in Hawaii
Hawaii
Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...
.
Hurricane Kristy
A tropical wave passed off the northwestern coast of Africa on August 6. It did not develop as it passed through the Atlantic OceanAtlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...
, until August 19 when convection began to form. On August 20 the disturbance turned into Tropical Depression Six in the Atlantic basin. It passed from the Leeward Islands
Leeward Islands
The Leeward Islands are a group of islands in the West Indies. They are the northern islands of the Lesser Antilles chain. As a group they start east of Puerto Rico and reach southward to Dominica. They are situated where the northeastern Caribbean Sea meets the western Atlantic Ocean...
up to the central Caribbean
Caribbean
The Caribbean is a crescent-shaped group of islands more than 2,000 miles long separating the Gulf of Mexico and the Caribbean Sea, to the west and south, from the Atlantic Ocean, to the east and north...
, until it dissipated on August 23. As it passed over Central America
Central America
Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...
, the disturbance had little remaining convection. However, the convection associated with the system began to organize when it entered the Pacific, and it strengthened into a tropical depression on August 29, while located 300 miles (485 km) south-southeast of Acapulco
Acapulco
Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. Later that day the depression intensified into Tropical Storm Kristy, based on ship reports of tropical storm force winds. Kristy strengthened into a hurricane on August 31, based solely on satellite imagery. Hurricane Kristy had short lifespan though, and weakened to a tropical storm on September 2. The easterly shear associated with an anticyclone south of Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
, which caused Kristy's convection to be forced west of the low-level center of the system, and therefore weakened it. Kristy weakened further to a depression on September 3, and weak steering currents allowed the cyclone to remain stationary on September 4, loop the following day, and then began to move eastward. The depression dissipated on September 6, weakening to a low-level swirl. Kristy caused heavy rains and flooding in the Mexican states of Chiapas
Chiapas
Chiapas officially Estado Libre y Soberano de Chiapas is one of the 31 states that, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 118 municipalities and its capital city is Tuxtla Gutierrez. Other important cites in Chiapas include San Cristóbal de las...
and Oaxaca
Oaxaca
Oaxaca , , officially Estado Libre y Soberano de Oaxaca is one of the 31 states which, along with the Federal District, comprise the 32 federative entities of Mexico. It is divided into 571 municipalities; of which 418 are governed by the system of customs and traditions...
. More than 20,000 people were evacuated, and a state of emergency
State of emergency
A state of emergency is a governmental declaration that may suspend some normal functions of the executive, legislative and judicial powers, alert citizens to change their normal behaviours, or order government agencies to implement emergency preparedness plans. It can also be used as a rationale...
was declared. No official casualty or damage figures were reported by the Mexican government.
Tropical Depression Seventeen-E (Debby)
The remnants of Hurricane DebbyHurricane Debby (1988)
Hurricane Debby was the strongest tropical cyclone to strike the Gulf Coast of Mexico since Hurricane Barry in 1983. The eighth tropical depression, fourth tropical storm, and the first hurricane of the 1988 Atlantic hurricane season, Debby developed from a tropical wave off the west coast of the...
moved over the mountainous areas of Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
, passing into the Pacific from the Pacific coast of Mexico near Manzanillo
Manzanillo, Colima
The name Manzanillo refers to the city as well as its surrounding municipality in the Mexican state of Colima. The city, located on the Pacific Ocean, contains Mexico's busiest port. Manzanillo was the third port created by the Spanish in the Pacific during the New Spain period...
. The disturbance moved towards the north-northwest and organized into a tropical depression on September 6 just south of the Gulf of California
Gulf of California
The Gulf of California is a body of water that separates the Baja California Peninsula from the Mexican mainland...
. The cyclone remained stationary due to weak low-level steering currents, later drifting to the north-northwest with an area of deep convection causing rain on the Mexican coast. It later moved to the northwest, with partial exposure of the center of the system, and with some shear still affecting it.
The cyclone continued to have shear over the system, which caused it not to strengthen, and its movement became nearly stationary. After remaining stationary longer, the system dissipated as a low-level swirl.
Tropical Depression Eighteen-E
A disturbance organized, and based on satellite imagery it strengthened into a tropical depression on September 12. The center of circulation remained on the eastern fringe of its deep convection and the storm moved west or west-northwestward. On September 13, the depression underwent shearing, while its low-level circulation center had only a small amount of deep convection associated with it.The cyclone became poorly defined, and its movement turned stationary on September 14. The low-level circulation of the system remained visible, even though it weakened due to shearing. Little deep convection remained associated with the system, and the cyclone stayed stationary. The depression having no remaining convection and having become just a low-level cloud swirl, dissipated on September 15.
Tropical Storm Wila
A tropical depression formed on September 21 as an area of deep convection. The cyclone organized slowly though, drifting slowly, initially west then to the northwest. However, the depression recurved northeast, due to a trough. As the cyclone moved northeast, the system strengthened as indicated by an Air ForceUnited States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
reconnaissance plane showing tropical storm force winds. It therefore intensified into Tropical Storm Wila on September 25. Wila, however, weakened within a day, and therefore became a tropical depression. The remnant low of Wila produced some heavy rain over the Hawaiian Islands
Hawaiian Islands
The Hawaiian Islands are an archipelago of eight major islands, several atolls, numerous smaller islets, and undersea seamounts in the North Pacific Ocean, extending some 1,500 miles from the island of Hawaii in the south to northernmost Kure Atoll...
on September 26 and 27.
Hurricane Lane
A wave moved westward off the coast of Africa, passed through the Caribbean SeaCaribbean Sea
The Caribbean Sea is a sea of the Atlantic Ocean located in the tropics of the Western hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles, and to the east by the Lesser Antilles....
, and into the ITCZ
Intertropical Convergence Zone
The Intertropical Convergence Zone , known by sailors as The Doldrums, is the area encircling the earth near the equator where winds originating in the northern and southern hemispheres come together....
of the eastern Pacific on September 20. The system developed organized deep convection, and strengthened into a tropical depression on September 21, while 300 miles (485 km) southeast of Acapulco
Acapulco
Acapulco is a city, municipality and major sea port in the state of Guerrero on the Pacific coast of Mexico, southwest from Mexico City. Acapulco is located on a deep, semi-circular bay and has been a port since the early colonial period of Mexico’s history...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. As the low-level circulation organized further in the depression it intensified into Tropical Storm Lane, later on September 21. Lane developed further with an upper-level outflow pattern, and the cyclone turned into a hurricane on September 23. Later on September 23 and on September 24, an eye
Eye (cyclone)
The eye is a region of mostly calm weather found at the center of strong tropical cyclones. The eye of a storm is a roughly circular area and typically 30–65 km in diameter. It is surrounded by the eyewall, a ring of towering thunderstorms where the second most severe weather of a cyclone...
appeared on satellite imagery. A trough
Trough (meteorology)
A trough is an elongated region of relatively low atmospheric pressure, often associated with fronts.Unlike fronts, there is not a universal symbol for a trough on a weather chart. The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked...
to the northwest of Lane disturbed its upper-level outflow on September 24. Diminishing convection and loss of its eye caused Lane to weaken to a tropical storm on September 27, and into a depression on September 28. Later on September 28, the cyclone moved into cooler waters and Lane lost nearly all of its deep convection. It weakened into a low-level swirl, and Lane dissipated on September 30. Lane caused no reported casualties or damage.
Tropical Depression Twenty-E
The remnants of Atlantic basin Tropical Storm Isaac moved into the eastern Pacific. These remnants underwent better organization and strengthened into a tropical depression on October 11 south of Baja CaliforniaBaja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...
. Strong vertical southwesterly wind shear affected the cyclone, with the center of circulation later seen on the west side of the lessening amount of deep convection. The system remained poorly organized and had trouble strengthening to this continual poor organization as it moved westward.
The system could not be located on satellite imagery and therefore dissipated on October 12.
Tropical Storm Miriam
Atlantic hurricane, Hurricane Joan survived the passage over Central America and entered the Pacific, although greatly weakened. Following the policy at the time, Joan was renamed Miriam.Miriam brought heavy rains to parts of Central America. Isolated flooding and mudslides happened, although casualties and damage reports are not available. 10.37 inches (263 mm) of rain fell in Kantunilkin/Lazaro Cardenas
Lázaro Cárdenas, Michoacán
Lázaro Cárdenas is a port city that with its surrounding municipality is located in the southern part of the Mexican state of Michoacán. It was formerly known as Los Llanitos, but changed its name as a tribute to Lázaro Cárdenas del Río, a Michoacán-born politician who was president of Mexico from...
, Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
as a result of Miriam and the former Joan. Guatemala's
Guatemala
Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...
ports along its Pacific
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
coast were closed and people in El Salvador
El Salvador
El Salvador or simply Salvador is the smallest and the most densely populated country in Central America. The country's capital city and largest city is San Salvador; Santa Ana and San Miguel are also important cultural and commercial centers in the country and in all of Central America...
were evacuated from low-lying areas due to the storm. Miriam then turned away from Central America and weakened to a depression. The depression survived for over a week until it dissipated on October 30. Tropical Depression Miriam's remnants regenerated the next day, and Miriam finally dissipated on November 2.
Season summary
ACE Rating
| ACE (104 kt2) – Storm | |||||
|---|---|---|---|---|---|
| 1 | (39.29) | Uleki | 9 | 3.08 | Aletta |
| 2 | 22.54 | Hector | 10 | 2.76 | Miriam |
| 3 | 16.73 | Fabio | 11 | 2.34 | Emilia |
| 4 | 11.99 | Lane | 12 | 0.97 | Gilma |
| 5 | 9.83 | Iva | 13 | 0.81 | Bud |
| 6 | 7.27 | Kristy | 14 | 0.37 | John |
| 7 | 4.77 | Daniel | (0.37) | Wila | |
| 8 | 4.33 | Carlotta | |||
| Total= 87.79 (39.66) | |||||
The table on the right shows the Accumulated Cyclone Energy
Accumulated cyclone energy
Accumulated cyclone energy is a measure used by the National Oceanic and Atmospheric Administration to express the activity of individual tropical cyclones and entire tropical cyclone seasons, particularly the North Atlantic hurricane season. It uses an approximation of the energy used by a...
for each storm in the season. ACE is a measure of the power of a tropical cyclones multiplied by the length of time it existed, so storms that last a long time, as well as particularly strong tropical cyclones, have high ACEs. ACE is only calculated for full advisories on tropical systems at or exceeding 34 knots (39 mph, 63 km/h) or tropical storm strength.
The figures in parentheses are for storms in the Central Pacific basin west of 140°W; those not in parenthesis are for the Eastern Pacific basin.
The cumulative ACE for the Eastern Pacific this season fell within the official "Near Normal" grading.
1988 storm names
The following names were used for named storms that formed in the eastern Pacific in 1988. The names not retired from this list were used again in the 1994 season1994 Pacific hurricane season
The 1994 Pacific hurricane season officially started on May 15, 1994 in the eastern Pacific, and on June 1, 1994 in the central Pacific, and lasted until November 30, 1994. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean...
. This is the same list used for the 1982 season
1982 Pacific hurricane season
The 1982 Pacific hurricane season officially started May 15, 1982 in the eastern Pacific, and June 1, 1982 in the central Pacific, and lasted until November 30, 1982. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean.The...
. Names that were not assigned are marked in gray.
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Hurricane Joan-Miriam Hurricane Joan was a powerful hurricane that caused death and destruction in over a dozen countries in the Caribbean and Central America. Moving on a due west course for nearly two weeks in October 1988, Hurricane Joan caused widespread flooding and over 200 deaths after moving into Central America... |
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Two names from the Central Pacific list were used – Uleki and Wila, both being their first usage.
Retirement
The World Meteorological OrganizationWorld Meteorological Organization
The World Meteorological Organization is an intergovernmental organization with a membership of 189 Member States and Territories. It originated from the International Meteorological Organization , which was founded in 1873...
retired one name in the spring of 1989: Iva. Ileana replaced the name of Iva in the 1994 season
1994 Pacific hurricane season
The 1994 Pacific hurricane season officially started on May 15, 1994 in the eastern Pacific, and on June 1, 1994 in the central Pacific, and lasted until November 30, 1994. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean...
.
See also
- List of Pacific hurricanes
- List of Pacific hurricane seasons
- 1988 Atlantic hurricane season1988 Atlantic hurricane seasonThe 1988 Atlantic hurricane season was a moderately active season that proved costly and deadly, with 15 tropical cyclones directly affecting land. The season officially began on June 1, 1988, and lasted until November 30, 1988, although activity began on May 30 when a tropical...
- 1988 Pacific typhoon season1988 Pacific typhoon seasonThe 1988 Pacific typhoon season has no official bounds; it ran year-round in 1988, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern...
- 1988 North Indian Ocean cyclone season
- Southern Hemisphere tropical cyclone seasons: 1987–88, 1988–89