Lably
Skip to content

Related on Lably

Through Natural disaster and Atmospheric pressure

Prior to the arrival of Liza, residents along the Gulf of California coastline were evacuated, although some refused to leave their homes. Radio stations warned all nearby ships to remain at harbor. Liza brought heavy rainfall to the area, which caused significant flash flooding. Following a dam burst by the El Cajoncito Creek along the outskirts of La Paz, hundreds of people were swept away by flood waters. In La Paz, the capital of the state, 412 people died and 20,000 were left homeless. Nearly one third of the homes in the town were destroyed. Throughout the state, a variety of death tolls were reported, but officials estimated that 1,000 people had perished. In the states of Sinaloa and Sonora, Liza caused moderate damage and left 30,000 to 54,000 homeless, along with 155 more casualties. Along the Gulf of California, 108 people were presumed dead after 12 boats were lost. The remnants of the storm later affected the United States, bringing moderate rainfall

In the aftermath of the storm, rescue workers spent days digging through mud to find victims of the hurricane until the search was disbanded on October 6. The government received criticism for the tragedy, citing that the dam that broke had been poorly built. Overall, at least 1,263 fatalities and $100 million (1976 USD) in damage are attributed to the hurricane, making it one of the deadliest tropical cyclones on record in the eastern Pacific, as well as one of the few Pacific hurricanes to kill more than 1,000 people.

Meteorological history

Hurricane Liza originated from a very large area of intense thunderstorms that developed about 400 mi (645 km) southwest of the Mexican coast on September 25. Later that day, satellite imagery indicated that the system had developed a cyclonic circulation. It is estimated that a tropical depression developed at 1800 UTC on September 25, centered about 485 mi (780 km) east-northeast of Zihuatanejo, Guerrero. The depression gradually intensified as it tracked west-northwestward, and became Tropical Storm Liza at 1800 UTC on the following day. Thereafter, Liza turned to the north at 7 mph (11 km/h) and began to strengthen while moving through sea surface temperatures of 85 °F (29 °C). Within 48 hours of the storm's formation, the Eastern Pacific Hurricane Center (EPHC) reported winds of 65 mph (105 km/h), and Liza intensified into a hurricane early on September 28. Around this time, the hurricane had developed an eye that was 17 mi (27 km) in diameter, though it was initially not visible on satellite imagery. Operationally, however, Liza was not upgraded to a hurricane until 18 hours later.

During the afternoon hours of September 28, a Hurricane Hunters aircraft made its first flight into Liza, recording a minimum barometric pressure of 971 mbar (28.7 inHg); despite the low pressure, maximum sustained winds of just 45 mph (70 km/h) were reported. Hours later, a second flight into the hurricane revealed winds of 75 mph (120 km/h) and slightly lower pressures. Liza continued to intensify, attaining winds of 80 mph (130 km/h) by early September 29. Later that morning, the hurricane reached Category 2 intensity on the Saffir-Simpson Hurricane Wind Scale (SSHWS). By midday, Hurricane Hunters recorded a pressure of 948 mb (28.0 inHg) as the eye became visible on infrared satellite imagery, prompting the EPHC to upgrade Liza to a major hurricane, a Category 3 or higher on the SSHWS.

Liza continued to rapidly intensify and attained winds of 140 mph (230 km/h) late on September 29, making it a mid-level Category 4 hurricane. Though Liza encountered warm sea surface temperatures of 88 °F (31 °C), it did not strengthen further the following day. Late on September 30, Liza brushed the Baja California Peninsula, passing about 65 mi (105 km) east of Cabo San Lucas while still at peak intensity. Early on October 1, Liza entered the Gulf of California exactly 52 mi (84 km) east of La Paz, Baja California Sur. By 1300 UTC that day, Liza made landfall about 50 mi (80 km) north of Los Mochis, Sinaloa, with winds of 115 mph (185 km/h), still a Category 3 storm. Operationally, however, Hurricane Liza was estimated to have made landfall with winds of 100 mph (160 km/h) and gusts up to 150 mph (240 km/h). The storm continued quickly inland while weakening, dissipating the following day. The remnants of Hurricane Liza later entered the United States near El Paso, Texas.

Sign in to keep reading

3 more chapters are free with a Lably account.

More in Earth science