MIAMI (CBSMiami) – Weather in the Yucatan Peninsula has started deteriorating as Hurricane Ernesto approaches.

At 11:00 p.m., Ernesto is located about 40 miles east-northeast of Chetumal, Mexico.

Maximum sustained winds are 85 mph, with higher guests and the storm is moving to the west-northwest at 15 mph.

This general motion is expected to continue through Tuesday night, followed by a turn toward the west on Wednesday.

On this forecast track the center of Ernesto will cross the east coast of the Yucatan Peninsula overnight Tuesday and continue moving across the Yucatan through early Wednesday.

The storm will then emerge over the Bay of Campeche by Wednesday afternoon or evening, according to the National Hurricane Center.

Ernesto is expected to weaken as it moves over land.

A Hurricane Warning is in effect for Chetumal to Tulum on the east coast of the Yucatan Peninsula, Cozumel, the coast of Belize from Belize City northward to the border of Mexico

A Hurricane Watch is in effect on Barra De Nautla to Punta El Lagarto, Mexico.

A Tropical Storm Warning is in effect for north of Tulum to Cabo Catoche on the east coast of the Yucatan Peninsula,  south of Belize City southward to the border of Guatemala,  Celestun southward, and westward to Chilitepec along the Gulf Coast of Mexico.

A Tropical Storm Watch is in effect for north of Barra De Nautla to Tuxpan, Mexico.

Watch the latest Tracking The Tropics forecast:

Visit the CBS4 Tropics Page for an interactive Tropical Tracker, the newest computer model tracks and more.

Ernesto is expected to dump upwards of 5 inches of rain along the northern coast of Honduras and the northeast coast of Nicaragua with isolated areas receiving up to 8 inches of rain. The system could dump as much as 12 inches of rain in the southern Yucatan and in Belize.