Last week Hurricane Sergio was heading west away from the Mexican coast.
But since it made a U-turn three days ago it is now bearing down quickly on the Baja peninsula as a tropical storm.
Schools were closed today in Mulegé, Baja California Sur, in preparation for wind and rain accompanying the storm, which is expected to make landfall Friday morning.
A tropical storm warning has been issued for the west coast of the Baja peninsula from Punta Eugenia, Mulegé, to Cabo San Lázaro, Comondú, and on the east coast from Bahía San Juan Bautista to San Evaristo.
As of 10:00am CDT Friday, the storm was 715 kilometers west-southwest of Cabo San Lázaro and moving northeast at 31 kilometers per hour. Maximum sustained winds were 100 kilometers per hour.
Wind and heavy rain can be expected for Saturday on the central peninsula.