The U.S. National Hurricane Center said Wednesday that Hurricane Willa has weakened to a tropical storm but torrential rains will continue in west-central Mexico.
The meteorologists said Willa was moving toward the northeast at speeds near 20 mph, movement expected to continue during the next 12 hours. The Hurricane Center added that the government of Mexico has discontinued all coastal tropical cyclone warnings for the country.
"Continued rapid weakening is forecast during the next 12 hours, and Willa is expected to dissipate by this afternoon," the Hurricane Center said.
Willa began losing power overnight after roaring over a stretch of beach towns, fishing villages and farms on the Pacific coast of Mexico's Sinaloa state as a Category 3 storm.
Damage assessments were scanty during the night because of darkness and poor communications, but federal officials said power had been knocked out in some spots and that there were early reports of flimsy structures with tin roofs sustaining damage.
Before hitting the mainland near Isla del Bosque with 120 mph winds Tuesday night, Willa swept over an offshore penal colony about 60 miles out in the Pacific. Authorities declined to comment on precautions that were taken at the prison, citing security concerns, but said the safety of inmates was a priority.
The Hurricane Center said the storm's forward movement had sped up to 17 mph late Tuesday and that it was expected to rapidly weaken. It warned, however, that the storm could still cause heavy rains in portions of Jalisco, Nayarit and Sinaloa states, with flash flooding and landslides possible in mountainous areas.
Willa came ashore about 50 miles southeast of Mazatlan, a resort city that is home to high-rise hotels and about 500,000 people, including many U.S. and Canadian expatriates.
Although hotels, restaurants and stores were boarded up, people ventured onto Mazatlan's coastal boulevard to watch a spectacular sunset as the hurricane obscured the sky to the south.
Alberto Hernandez, a hotel worker in the town of Teacapan, close to where the storm made landfall, expressed confidence before it hit that the building would hold up. He and his son, who also works at the hotel, stayed on the job, though the rest of his family had left the area.
"We've had rain all day. There is nobody in the streets. Everything is closed," Hernandez said. "But not everyone wanted to leave, even though authorities made it clear that he who stays does so at his own peril."