Tropical Storm Gert (2005)
Encyclopedia
Tropical Storm Gert was the fourth of seven tropical cyclones (4 hurricanes, two major hurricanes, and four tropical storms) to make landfall in Mexico during 2005. It formed in July in the Bay of Campeche
Bay of Campeche
The Bay of Campeche is the southern bight of the Gulf of Mexico. It is surrounded on three sides by the Mexican states of Campeche, Tabasco and Veracruz. It was named by Francisco Hernández de Córdoba and Antonio de Alaminos during their expedition in 1517...

, becoming the seventh named storm of the 2005 Atlantic hurricane season
2005 Atlantic hurricane season
The 2005 Atlantic hurricane season was the most active Atlantic hurricane season in recorded history, repeatedly shattering numerous records. The impact of the season was widespread and ruinous with an estimated 3,913 deaths and record damage of about $159.2 billion...

.

As a tropical wave, Gert crossed Honduras
Honduras
Honduras is a republic in Central America. It was previously known as Spanish Honduras to differentiate it from British Honduras, which became the modern-day state of Belize...

 and the Yucatán
Yucatán
Yucatán officially Estado Libre y Soberano de Yucatán is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 106 municipalities and its capital city is Mérida....

 peninsula before organizing into Tropical Depression Seven on the afternoon of July 23 in the Bay of Campeche
Bay of Campeche
The Bay of Campeche is the southern bight of the Gulf of Mexico. It is surrounded on three sides by the Mexican states of Campeche, Tabasco and Veracruz. It was named by Francisco Hernández de Córdoba and Antonio de Alaminos during their expedition in 1517...

. It was upgraded to Tropical Storm Gert early the next day, gaining the record for the earliest formation of a seventh named storm in an Atlantic hurricane season. Gert strengthened little before making landfall
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...

 south of Tampico
Tampico
Tampico is a city and port in the state of Tamaulipas, in the country of Mexico. It is located in the southeastern part of the state, directly north across the border from Veracruz. Tampico is the third largest city in Tamaulipas, and counts with a population of 309,003. The Metropolitan area of...

, Tamaulipas
Tamaulipas
Tamaulipas officially Estado Libre y Soberano de Tamaulipas is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 43 municipalities and its capital city is Ciudad Victoria. The capital city was named after Guadalupe Victoria, the...

, late on July 24, with maximum sustained winds of 45 mph (70 km/h) and a minimum central pressure of 1005 mbar (29.68 inHg). It moved inland over central Mexico before dissipating on the next day. Gert struck in approximately the same area as Hurricane Emily
Hurricane Emily (2005)
Hurricane Emily was a powerful, early season tropical cyclone that caused significant damage across the Caribbean Sea to Mexico. A Cape Verde-type hurricane, the storm formed on July 10, 2005, in the central Atlantic Ocean before passing through the Windward Islands on July 14...

 just four days earlier, causing fear of flooding and landslides due to saturated lands. As a precaution, some 1,000 people were evacuated from low-lying residences and businesses near the towns of Naranjos Amatlán
Naranjos Amatlán
Naranjos Amatlán is a municipality in Veracruz, Mexico. It is located in north zone of the State of Veracruz, about 402 km from state capital Xalapa. It has an area of...

 and Tamiahua
Tamiahua
Tamiahua is a municipality located in the north zone in the State of Veracruz. It has a surface of 985.4 km2. It is located at . The name comes from the náhuatl...

.

Meteorological history

A tropical wave
Tropical wave
Tropical waves, easterly waves, or tropical easterly waves, also known as African easterly waves in the Atlantic region, are a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which move from east to west across the tropics causing areas of...

 entered the Atlantic Ocean from Africa on July 10, and the wave developed into an area of low pressure
Low pressure area
A low-pressure area, or "low", is a region where the atmospheric pressure at sea level is below that of surrounding locations. Low-pressure systems form under areas of wind divergence which occur in upper levels of the troposphere. The formation process of a low-pressure area is known as...

 while passing over Cape Verde
Cape Verde
The Republic of Cape Verde is an island country, spanning an archipelago of 10 islands located in the central Atlantic Ocean, 570 kilometres off the coast of Western Africa...

. Despite the organization, the low failed to develop into a tropical cyclone due to cool waters on the sea surface and 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...

. However, those unfavorable conditions did not completely destroy the wave, as it continued traveling westward through the Lesser Antilles
Lesser Antilles
The Lesser Antilles are a long, partly volcanic island arc in the Western Hemisphere. Most of its islands form the eastern boundary of the Caribbean Sea with the Atlantic Ocean, with the remainder located in the southern Caribbean just north of South America...

 until July 18. That day, while south of Puerto Rico
Puerto Rico
Puerto Rico , officially the Commonwealth of Puerto Rico , is an unincorporated territory of the United States, located in the northeastern Caribbean, east of the Dominican Republic and west of both the United States Virgin Islands and the British Virgin Islands.Puerto Rico comprises an...

, the wave split in two; the northern half moved northwest and developed into Tropical Storm Franklin
Tropical Storm Franklin (2005)
Tropical Storm Franklin was a tropical storm over the western Atlantic Ocean during July of the 2005 Atlantic hurricane season. It was the sixth named storm of the season and twice approached hurricane strength. The storm formed over the Bahamas on July 21 then moved north erratically, approaching...

 over the Bahamas, and the southern half continued westward, with its associated thunderstorm activity increasing.

On July 22, a new low pressure area developed while the tropical wave was located over the Gulf of Honduras
Gulf of Honduras
The Gulf or Bay of Honduras is a large inlet of the Caribbean Sea, indenting the coasts of Belize, Guatemala, and Honduras. From north to south, it runs for approximately 200 km from Dangriga, Belize, to La Ceiba, Honduras....

. However, this area of disturbed weather was unable to develop further, because the storm quickly moved over the Yucatán Peninsula
Yucatán Peninsula
The Yucatán Peninsula, in southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico, with the northern coastline on the Yucatán Channel...

. After its one-day passage through the peninsula, the system entered the Bay of Campeche
Bay of Campeche
The Bay of Campeche is the southern bight of the Gulf of Mexico. It is surrounded on three sides by the Mexican states of Campeche, Tabasco and Veracruz. It was named by Francisco Hernández de Córdoba and Antonio de Alaminos during their expedition in 1517...

, but lacked any deep convection
Convection
Convection is the movement of molecules within fluids and rheids. It cannot take place in solids, since neither bulk current flows nor significant diffusion can take place in solids....

. This time, though, the wave quickly developed
Tropical cyclogenesis
Tropical cyclogenesis is the term that describes the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropical cyclogenesis occurs are distinctly different from those through which mid-latitude cyclogenesis occurs...

 the deep convection it needed to become a tropical cyclone. In part, this was due to the Sierra Madre Oriental
Sierra Madre Oriental
The Sierra Madre Oriental is a mountain range in northeastern Mexico.-Setting:Spanning the Sierra Madre Oriental runs from Coahuila south through Nuevo León, southwest Tamaulipas, San Luis Potosí, Querétaro, and Hidalgo to northern Puebla, where it joins with the east-west running Eje Volcánico...

 enhancing large-scale rotation of the disturbance by forcing air to flow parallel to the mountain range, instead of through it. As a result, the National Hurricane Center
National Hurricane Center
The National Hurricane Center , located at Florida International University in Miami, Florida, is the division of the National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th...

 in Miami, Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 designated it as Tropical Depression Seven, just 255 miles east-southeast of Tuxpan, Mexico. Early on the July 24, the cyclone was upgraded to a tropical storm with winds of 40 mph (65 km/h) and received the name Gert. This was the fourth time Gert was used to name an Atlantic storm.

Gert continued to move northwest after becoming a tropical storm, and reached a peak intensity of 45 mph (70 km/h) and a minimum central pressure of 1005 mbar
Bar (unit)
The bar is a unit of pressure equal to 100 kilopascals, and roughly equal to the atmospheric pressure on Earth at sea level. Other units derived from the bar are the megabar , kilobar , decibar , centibar , and millibar...

 (29.68 inHg). Gert made landfall just 6 miles (10 km) to the southeast of Pánuco
Pánuco, Veracruz
Pánuco is a city in the Mexican state of Veracruz, located in the state's Huasteca Alta region. It serves as the municipal seat of the surrounding Pánuco Municipality...

, still at peak intensity, at 10:00 p.m. CDT (0000 July 25, UTC). However, due to its interaction with land, the storm quickly weakened back to a tropical depression strength early on July 25, and became a remnant low twelve hours after that. Six hours later, just a day after it made landfall, it dissipated over the mountains of central Mexico.

Preparations

The track of Tropical Storm Gert was slightly more to the north than the National Hurricane Center
National Hurricane Center
The National Hurricane Center , located at Florida International University in Miami, Florida, is the division of the National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th...

's initial predictions, giving the storm more time to develop. As a result, the NHC predicted that Gert could intensify further, but this did not occur. The primary emphasis of the forecasts was on the impact the rainfall from Gert could cause, particularly on this area of Mexico, which had been hit previously in the season by other hurricanes.

On July 23, the Mexican Servicio Meteorológico Nacional (National Weather Service) issued a tropical storm warning for the eastern Mexican Gulf coast
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...

 between Palma Sola and Cabo Rojo
Cabo Rojo (Mexico)
Cabo Rojo is a barrier of quartzite sand deposited adjacent to the coast of the Mexican state of Veracruz, about south of the city of Tampico, Tamaulipas. It encloses the brackish lagoon called Laguna de Tamiahua...

, as soon as Tropical Depression Seven formed. At that time, a tropical storm watch was issued from Cabo Rojo northward, until reaching La Cruz
La Cruz, Tamaulipas
La Cruz is a community located in Nuevo Laredo Municipality in the Mexican state of Tamaulipas. According to the INEGI Censsus of 2010, La Cruz has a population of 159 inhabitants. Its elevation is 132 meters above sea level.- References :...

. That same day, the government of Veracruz declared 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...

 in 24 municipalities of the state
Municipalities of Veracruz
The Mexican state of Veracruz is subdivided into 212 municipalities :-External links:* *...

, making money from the National Disaster Fund available to those affected by the storm. As Gert came closer to the littoral
Littoral
The littoral zone is that part of a sea, lake or river that is close to the shore. In coastal environments the littoral zone extends from the high water mark, which is rarely inundated, to shoreline areas that are permanently submerged. It always includes this intertidal zone and is often used to...

, the tropical storm warning was extended northwards to La Cruz, and then to La Pesca
La Pesca, Tamaulipas
La Pesca is a small town in the Mexican state of Tamaulipas. It is located on the Gulf of Mexico, at the mouth of the Río Soto La Marina, between the Laguna Madre to the north and the Laguna Morales to the south....

, but it was canceled shortly after landfall.

Tropical Storm Gert struck just south of where Category 3
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...

 Hurricane Emily
Hurricane Emily (2005)
Hurricane Emily was a powerful, early season tropical cyclone that caused significant damage across the Caribbean Sea to Mexico. A Cape Verde-type hurricane, the storm formed on July 10, 2005, in the central Atlantic Ocean before passing through the Windward Islands on July 14...

 had struck, and where Tropical Storm Bret
Tropical Storm Bret (2005)
Tropical Storm Bret was a short-lived tropical storm of the 2005 Atlantic hurricane season that made landfall in the Mexican state of Veracruz, the first of four during the season. The second named storm of the season, Bret developed along a tropical wave on June 28 in the Bay of Campeche, and...

 hit in late June. As a result, there were concerns that serious flooding and mudslides would result due to saturated ground. As a precaution, about 1,000 people were evacuated from low-lying residences and businesses near the towns of Naranjos Amatlán
Naranjos Amatlán
Naranjos Amatlán is a municipality in Veracruz, Mexico. It is located in north zone of the State of Veracruz, about 402 km from state capital Xalapa. It has an area of...

 and Tamiahua
Tamiahua
Tamiahua is a municipality located in the north zone in the State of Veracruz. It has a surface of 985.4 km2. It is located at . The name comes from the náhuatl...

 in Veracruz, and about 6,000 throughout Tamaulipas
Tamaulipas
Tamaulipas officially Estado Libre y Soberano de Tamaulipas is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 43 municipalities and its capital city is Ciudad Victoria. The capital city was named after Guadalupe Victoria, the...

.

Impact

The highest 24-hour rainfall reports were 214.9 mm (8.46 in) in Tamuin, San Luis Potosí
Tamuín
Tamuín is a municipio in the Mexican state of San Luis Potosí. Tamuín is internationally renowned for three archaeological sites representative of the precolonial Huastec culture.-Toponymy:...

, and 185.2 mm (7.29 in) in Tamesi, Tamaulipas. In Veracruz, the highest precipitation reading associated with Gert was 117 mm, (4.61 in) in El Higo
El Higo
El Higo is a village and municipality in the Mexican state of Veracruz. It is located in the state's Huasteca Alta region.In the 2005 INEGI Census, the village of El Higo reported a total population of 7,844....

. However, damage overall was minimal, amounting to $6 million (2005 USD, $60 million 2005 MXN), and there was only one reported fatality, from a man who was carried away by the La Silla River when he was pushing a stalled car across the flooded stream.

Tamaulipas

According to the government of Tamaulipas
Tamaulipas
Tamaulipas officially Estado Libre y Soberano de Tamaulipas is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 43 municipalities and its capital city is Ciudad Victoria. The capital city was named after Guadalupe Victoria, the...

, most of the damage in the state was in farmland and in residents' dwellings, primarily near Matamoros
Matamoros, Tamaulipas
Matamoros, officially known as Heroica Matamoros, is a city in the northeastern part of Tamaulipas, in the country of Mexico. It is located on the southern bank of the Rio Grande, directly across the border from Brownsville, Texas, in the United States. Matamoros is the second largest and second...

, Valle Hermoso
Valle Hermoso, Tamaulipas
Valle Hermoso is a city in Valle Hermoso Municipality in the northeastern part of the Mexican state of Tamaulipas. The city serves as the municipal seat of the municipality, which is bordered by the municipalities of Matamoros and Río Bravo...

, Reynosa
Reynosa
Reynosa is a border city in the northern part of Tamaulipas, in the country of Mexico. It is located on the southern bank of the Rio Grande, directly across the border from McAllen, Texas in the United States. As of 2010, the city of Reynosa counts with a population of 607,532...

 and San Fernando
San Fernando, Tamaulipas
San Fernando is a municipality and city located in the Mexican state of Tamaulipas.-Massacres:San Fernando, Tamaulipas is notorious for experiencing two of the largest recorded massacres of the Mexican Drug War...

. In Matamoros, part of the city lost power and running water; in Valle Hermoso, two schools were damaged; in Reynosa, 180 people were evacuated from low-lying areas in five districts of the city, while in San Fernando, the main highway through the city was closed, and traffic on the bridge over the Conchos River was restricted to one lane.

In Mier
Ciudad Mier
Mier , also known as El Paso del Cántaro, is a city in Mier Municipality in Tamaulipas, located in northern Mexico near the Rio Grande, just south of Falcon Dam. It is north east of Monterrey on Mexico Highway 2. In 1990 the population was recorded at 6,190. By the 2010 census, it had dropped...

, the spillway
Spillway
A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically being the river that was dammed. In the UK they may be known as overflow channels. Spillways release floods so that the water does not overtop and damage or even destroy...

 of the Las Blancas Dam was overtopped, causing a river bridge to be destroyed and electric power to be lost, as well. In Río Bravo, 50 families were evacuated as seven collective farms became hard to reach by road; approximately 90% of the residences in the farms were affected by the storm. In Altamira
Altamira, Tamaulipas
Altamira is a municipality and city in the Mexican state of Tamaulipas. It is located immediately to the north of the municipalities of Tampico and Ciudad Madero, at the southern tip of the state of Tamaulipas, on the Gulf of Mexico. Additionally, it borders the municipalities of González on the...

, 200 families were evacuated as well, and relocated to seven shelters. Also, in the municipalities of Burgos
Burgos
Burgos is a city of northern Spain, historic capital of Castile. It is situated at the edge of the central plateau, with about 178,966 inhabitants in the city proper and another 20,000 in its suburbs. It is the capital of the province of Burgos, in the autonomous community of Castile and León...

, Cruillas, and Méndez
Méndez, Tamaulipas
-External links:* Official website...

 there was flooding in collective farms and family dwellings. Overall, the municipalities
Municipalities of Tamaulipas
The Mexican state of Tamaulipas is divided into 43 municipalities...

 of Mier, Reynosa, Río Bravo
Río Bravo, Tamaulipas
Río Bravo formally Ciudad Río Bravo is a city in northern part of the Mexican state of Tamaulipas. It is the municipal seat of Río Bravo Municipality. The city lies east of Reynosa and just south of the Río Bravo del Norte and was also named after it. Directly across the U.S.-Mexico border lies...

, Valle Hermoso, Matamoros, San Fernando, San Carlos
San Carlos, Tamaulipas
San Carlos Municipality is a municipality located in the Mexican state of Tamaulipas.San Carlos tamaulipas is a little village ubicated in the center of tamaulipas 2 hours from cd victoria the capital of the state...

, Burgos, Cruillas, Méndez, Soto la Marina, Mante
Ciudad Mante
Mante formally Ciudad Mante is a city in the Mexican state of Tamaulipas. The city is the municipal seat of El Mante municipality in extreme southern Tamaulipas, and lies in the northwestern portion of the municipality. It had a 2005 census population of 81,884 inhabitants, or about 73 percent of...

 and Altamira were affected in the state, losing potable water and electricity.

After the storm, the state government promised to take the necessary steps to prevent an outbreak of dengue and West Nile virus
West Nile virus
West Nile virus is a virus of the family Flaviviridae. Part of the Japanese encephalitis antigenic complex of viruses, it is found in both tropical and temperate regions. It mainly infects birds, but is known to infect humans, horses, dogs, cats, bats, chipmunks, skunks, squirrels, domestic...

; however, by June 29, there had already been 187 cases of classic dengue, and 29 of hemorrhagic dengue, up from 8 cases two years before, and none the previous year.

Nuevo León

In Nuevo León
Nuevo León
Nuevo León It is located in Northeastern Mexico. It is bordered by the states of Tamaulipas to the north and east, San Luis Potosí to the south, and Coahuila to the west. To the north, Nuevo León has a 15 kilometer stretch of the U.S.-Mexico border adjacent to the U.S...

, about 6,000 residents who lived near the Conchos, Guayalejo, and Grande Rivers
Rio Grande
The Rio Grande is a river that flows from southwestern Colorado in the United States to the Gulf of Mexico. Along the way it forms part of the Mexico – United States border. Its length varies as its course changes...

 were evacuated from their residences across the state. Also, the precipitation from Gert caused about 100 collective farms to become isolated from the rest of the state in the municipality of Montemorelos
Montemorelos
Montemorelos is a city and surrounding municipality of 53,854 inhabitants located in the Northern Mexican state of Nuevo León, in the valley of the Pilon River...

. In the city, one building was evacuated, as a 100 ft (30 m) fissure
Fissure
In anatomy, a fissure is a groove, natural division, deep furrow, elongated cleft, or tear in various parts of the body.-Brain:...

 appeared on the ground near the structure.

In the municipalities of San Vicente Tancuayalab
San Vicente Tancuayalab
San Vicente Tancuayalab is a town and municipality in San Luis Potosí in central Mexico....

, Valles
Ciudad Valles
Ciudad Valles is the second-largest city in the Mexican state of San Luis Potosí. It is located in the eastern part of the state at . The city is also the municipal seat of the surrounding municipality of the same name. The city had a 2005 census population of 116,261, while the municipality's...

 and Ebano
Ebano, Mexico
Ebano, Mexico is a town and municipality in San Luis Potosí in central Mexico....

, 100 people were evacuated.

See also

  • Tropical cyclone
    Tropical cyclone
    A tropical cyclone is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. Tropical cyclones strengthen when water evaporated from the ocean is released as the saturated air rises, resulting in condensation of water vapor...

  • List of 2005 Atlantic hurricane season storms
  • Timeline of the 2005 Atlantic hurricane season
    Timeline of the 2005 Atlantic hurricane season
    The timeline of the 2005 Atlantic hurricane season documents the formations, strengthenings, weakenings, landfalls, extratropical transitions, and dissipations of the season's tropical and subtropical storms. The 2005 Atlantic hurricane season was the most active Atlantic hurricane season in...


External links

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