The First tropical depression of the 2010 Atlantic storm season forms in the western Caribbean.
The effect of the storm on the Gulf oil spill recovery efforts is uncertain.
As of Friday at 5 p.m., the storm was located at 16.5 north, 83.5 west, or about 355 miles southeast of of Cozumel, Mexico.
Maximum sustained winds are 35 mph, the storm is moving west-northwest at 10 mph.
The Mexican government has issued a tropical storm warning for the east coast of the Yucatan Peninsula from Chetumal northward to Cancun.
Tropical storm force winds are expected to reach the coast
within the warning area by Saturday afternoon.
The depression is expected to produce rain accumulations of 4 to 8 inches over the Yucatan Peninsula, eastern Guatemala and much of Honduras and Belize through Sunday morning.
Isolated maximum rainfall of 15 inches is possible over mountainous areas. Rains could cause life-threatening flash floods and mudslides.
A tropical storm warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours.