Forecasters say tropical storm Julio has weakened to a tropical depression after drenching the central section of Mexico's Baja California peninsula.

The U.S. National Hurricane Center in Miami says Julio's winds have fallen to near 35 mph (55 kph) as it headed into the Gulf of California on Monday.

Moisture from the storm could dump up to 2 inches (5 centimeters) of rain over the U.S. Southwest in coming days.

Heavy rains fell on resort-studded southern Baja California on Sunday as authorities evacuated more than 2,500 families living along riverbeds. Most returned to their homes on Monday.

The storm flooded streets, knocked over light poles and damaged shacks, but most damage was minor.