Tropical Storm Karl Forms Quickly

Tropical Storm Karl has formed in the northwestern Caribbean, heading on a path expected to take it over the Yucatan Peninsula and Mexico.

Forecasters say the storm has maximum sustained winds of about 40 mph and is located about 270 miles east of Chetumal, Mexico. It's moving west-northwest at 15 mph.

Mexico's government has issued a tropical storm warning for the peninsula from Chetumal northward to Cabo Catoche. Parts of Belize are under a tropical storm watch.

The U.S. National Hurricane Center in Miami says the storm is expected to strengthen, and its center could be over the Yucatan on Wednesday.