Tropical Storm Sonia weakened to a tropical depression on Monday after making landfall in northwestern Mexico, but it brought heavy rainfall and some flooding that required evacuations.

A fisherman was reported missing after Sonia dissipated over the mainland hours after crossing the state of Sinaloa, the US National Hurricane Center said.

Some 650 people were evacuated from their homes and taken to shelters around Sinaloa and schools closed in five towns, the state public safety agency said.

Parts of the resort town of Mazatlan were flooded, with water rising as high as 1.5 meters (five feet). The highway linking the capital Culiacan to the city of Navolato was closed due to overflowing rivers.

Officials said Sonia's remnants could produce rain in seven other states as well as landslides in mountain regions.

Sonia was 125 kilometers (80 miles) northeast of Culiacan, capital of Sinaloa, blowing maximum sustained winds of 35 kilometers (25 miles) per hour, according to the US hurricane center.

The hurricane season has come down hard on Mexico, with tropical storms Manuel and Ingrid double-teaming in September to kill 157 people and damage the homes of 1.7 million people, mostly in southwestern Guerrero state.