Tropical storm moves over Mexico

MIAMI, Florida (CNN) - A tropical storm warning remained in effect Monday as Tropical Storm Dolly moved over Mexico's Yucatan Peninsula.

Tropical Storm Dolly has spurred storm warnings from the Mexico-Belize border northward to the city of Campeche, on the opposite side of the Yucatan Peninsula. The warning encompasses the tourist resort of Cancun.

At 5 a.m. ET Monday, the storm was about 150 miles (240 km) east of Progreso, Mexico. The National Hurricane Center said the storm is moving northwest at about 15 miles per hour and is expected to cross the peninsula and enter the Gulf of Mexico later Monday.