Hurricane Madeline (1976)
Encyclopedia
Hurricane Madeline was a Category 4 hurricane that made landfall in 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...

 in October 1976. Madeline formed on September 29, not far from 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 next day, the circulation dissipated, and as a result weakened to a remnant low. Four days later, on October 3, the low regenerated into a tropical depression. The system remained weak for three days as it drifted west-northwest. When it began to recurve towards Mexico on October 6, the cyclone rapidly intensified, eventually making landfall at peak intensity as a Category 4. Shortly after landfall, the cyclone rapidly dissipated.

Prior to the arrival of Madeline, 15,000 people evacuated form the coast, which had already been impacted by Hurricane Liza
Hurricane Liza (1976)
Hurricane Liza was one of the deadliest East Pacific tropical cyclones on record. The seventeenth tropical cyclone, thirteenth named storm, and the eight hurricane of the 1976 Pacific hurricane season, Liza developed from an area of disturbed weather to the southwest of Mexico on September 25...

. Heavy damage was reported, along with seven fatalities. Two dams were flooded; extensive crop damage was reported.

Meteorological history

Early on September 27, 1976, the Eastern Pacific Hurricane Center
Eastern Pacific Hurricane Center
The Eastern Pacific Hurricane Center was formerly the Regional Specialized Meteorological Center responsible for forecasting Pacific hurricanes in the eastern north Pacific east of 140°W...

 (EPHC) reported that a tropical disturbance had formed about 770 km (480 mi) to the southwest of San Jose, Costa Rica
San José, Costa Rica
San José is the capital and largest city of Costa Rica. Located in the Central Valley, San José is the seat of national government, the focal point of political and economic activity, and the major transportation hub of this Central American nation.Founded in 1738 by order of Cabildo de León, San...

. During the next two days the disturbance slowly developed while moving northwest. By the morning of September 29, the disturbance was upgraded to a 40 mph (65 km/h) tropical storm and based on ship reports and satellite imagery
Satellite imagery
Satellite imagery consists of photographs of Earth or other planets made by means of artificial satellites.- History :The first images from space were taken on sub-orbital flights. The U.S-launched V-2 flight on October 24, 1946 took one image every 1.5 seconds...

. Due to the fact that it attained tropical storm status, it was named Madeline. At this time, the cyclone had developed a center of circulation. Its intensification was short-lived and Madeline remained at tropical storm
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...

 strength for just 12 hours before it was downgraded into a tropical depression
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...

. Madeline remained at tropical depression strength until September 20. At that time, the EPHC reported that the circulation center was no longer visible and downgraded the system to a remnant low, while located 575 mi (925 km) to the southeast of Acapulco, Mexico.

Over the following days, the low moved towards the west and started to regenerate with a circulation center becoming visible early on October 3. Based on this, the EPHC re-upgraded Madeline to a tropical depression. Continuing to intensify, Madeline was soon upgraded to a tropical storm for the second time. During the next day or two, Madeline remained near stationary before turning towards the northeast on October 5. As the cyclone moved over an area of warm seas surface temperatures, the storm started to intensify. During the next day, Madeline slowly developed 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...

 before intensifying into a hurricane. In addition, a Hurricane Hunter aircraft reported winds 75 mph (120 km/h) winds and a pressure of 984 millibars

During October 7, with warm water helping to fuel its intensification, Madeline quickly intensified into a Category 2 hurricane, and was upgraded to a major hurricane (Category 3 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...

) early on October 8. Based on hurricane hunter reports, Madeline reached its peak sustained winds of 145 mph (230 km/h) and a peak pressure of 940 millibars
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...

 early on the 8 . Upon reaching peak intensity, it peak gust from the powerful hurricane was 165 mph (270 km/h). This made Madeline a moderate Category 4 hurricane. Later that morning Madeline made landfall to the northwest of Zihuatanejo
Zihuatanejo
Zihuatanejo or Ixtapa-Zihuatanejo, is the fourth-largest city in the Mexican state of Guerrero. Politically the city belongs to the municipality of Zihuatanejo de Azueta in the western part of Guerrero, but both are commonly referred to as Zihuatanejo...

 as a powerful Category 4 hurricane, before it rapidly dissipated over land.

Preparations and impact

Mexican army headquarters put in effect an emergency plan three days prior to the arrival of the hurricane. An estimated 15,000 people evacuated from threatened areas in the path of Madeline. According to one report, evacuations prior to Madeline were considered a success. Hurricane warnings
Tropical cyclone warnings and watches
Warnings and watches are two levels of alert issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local population and civil authorities to make appropriate...

 and flood warnings were issued along the coastlines of Michoacán
Michoacán
Michoacán officially Estado Libre y Soberano de Michoacán de Ocampo is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 113 municipalities and its capital city is Morelia...

 and Guerrero
Guerrero
Guerrero officially Estado Libre y Soberano de Guerrero is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 81 municipalities and its capital city is Chilpancingo....

. In addition, tropical storm warnings
Tropical cyclone warnings and watches
Warnings and watches are two levels of alert issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local population and civil authorities to make appropriate...

 were issued for nine states in Mexico. This warning area extended as far inland as the area west of the Gulf of Mexico
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

.

Hurricane Madeline produced heavy rains over 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...

, peaking at 16.57 in (420.9 mm), rainfall fell at El Povenir/San Marcos. According to Comision Nacional del Agua, a parent agency of the Servicio Meteorológico Nacional
Servicio Meteorológico Nacional
The Servicio Meteorológico Nacional is Mexico's national weather organization. It collects data and issues forecasts, advisories, and warnings for the entire country.-History:...

, rainfall fell at 2,069 sites. Damage from the hurricane was considered to be severe. In Chilpancingo
Chilpancingo
Chilpancingo de los Bravo is the capital and second-largest city of the state of Guerrero, Mexico. It is located at . In the 2005 census the population of the city was 166,796. Its surrounding municipality, of which it is municipal seat, had a population of 214,219 persons...

, Guerrero, two people drowned from the hurricane. In addition, five other deaths were reported. The cyclone also flooded two major hydro-electrical dams and power outages were reported. While no serious damage was reported in Zihuatanejo
Zihuatanejo
Zihuatanejo or Ixtapa-Zihuatanejo, is the fourth-largest city in the Mexican state of Guerrero. Politically the city belongs to the municipality of Zihuatanejo de Azueta in the western part of Guerrero, but both are commonly referred to as Zihuatanejo...

, many boats were damaged. In addition, the storm caused extensive crop damage. Losses from Madeline, combined with previous hurricanes Liza
Hurricane Liza (1976)
Hurricane Liza was one of the deadliest East Pacific tropical cyclones on record. The seventeenth tropical cyclone, thirteenth named storm, and the eight hurricane of the 1976 Pacific hurricane season, Liza developed from an area of disturbed weather to the southwest of Mexico on September 25...

 and Kathleen
Hurricane Kathleen (1976)
Hurricane Kathleen was a hurricane of the 1976 Pacific hurricane season that caused destructive impacts in California. Kathleen caused widespread flooding and damage in northern Mexico and parts of the southwestern United States. It also took an unusual path. On September 7, a tropical depression...

, were estimated at $200 million (1976 USD). It was the second storm to strike Mexico within a week; Hurricane Liza was the first. When Madeline was over the ocean, it impacted several ships, but no major damage from these ships was reported.

See also

  • 1976 Pacific hurricane season
    1976 Pacific hurricane season
    The 1976 Pacific hurricane season was a very deadly and costly one. Hurricanes Kathleen, Liza, and Madeline were the most notable storms this year. Hurricane Kathleen caused death and destruction in California and Arizona due to flooding. Hurricane Liza was the deadliest storm of the season when it...

  • 1959 Mexico hurricane
    1959 Mexico Hurricane
    The 1959 Mexico Hurricane was a devastating tropical cyclone that was one of the worst ever Pacific hurricanes. It impacted the Pacific coast of Mexico in October 1959. It killed at least 1,000 people, and perhaps double that, a record that still stands, and caused at least 280 million...

  • Hurricane Kenna
    Hurricane Kenna
    Hurricane Kenna was the second-most intense Pacific hurricane to strike the west coast of Mexico in recorded history. Kenna was the sixteenth tropical depression, thirteenth tropical storm, seventh hurricane, sixth major hurricane, and third Category 5 hurricane of the 2002 Pacific hurricane season...

  • Other storms named Madeline

External links

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