Tropical Storm Blanca has formed in the Pacific Ocean off Mexico and is expected to strengthen quickly over the next two days.
The second named storm of the season was centered about 335 miles (540 kilometers) south-southwest of Zihuatanejo, Mexico, on Monday. It has maximum sustained winds of 40 mph (65 kph) and is moving northwest at 5 mph (7 kph).
The U.S. National Hurricane Center in Miami says no coastal warnings or watches are in effect, but the storm is expected to gain strength and become a hurricane Tuesday. Forecasters call it a slow-moving storm.
Meanwhile, Hurricane Andres weakened a bit Monday morning. It is about 840 miles (1,350 kilometers) southwest of the southern tip of Baja California. It is moving west-northwest at 6 mph (9 kph) with maximum sustained winds of 140 mph (220 kph). No warnings or watches are in effect.