Tropical storm warnings and watches are posted for parts of the Caribbean as Tropical Storm Emily moves on a track that is expected to bring its center across Hispaniola late Wednesday.

Haiti and the Dominican Republic share the island of Hispaniola. The news is particularly bad for Haiti, where thousands of people still live in tent camps after a devastating earthquake in January 2010. One Haitian official tells the French news agency that authorities are asking people in the makeshift camps to evacuate vulnerable locations.

The Miami-based National Hurricane Center said in its latest report Tuesday evening that Emily was about 200 kilometers south of Puerto Rico's southern coast, moving toward the west with 85 kilometer-per-hour winds. It is expected to turn toward the northwest. Rain from the outer bands of the storm is falling in Puerto Rico.

Forecasts for Puerto Rico, the Dominican Republic and Haiti call for up to 15 centimeters of rain, although some areas could receive as much as 25 centimeters. The hurricane center says the rains could cause life-threatening flash floods and mudslides in areas of mountainous terrain.

A tropical storm warning is now in effect for Puerto Rico, the Dominican Republic, Haiti, southeast Bahamas and the Turks and Caicos Islands. A tropical storm watch is in effect for the U.S. Virgin Islands

Elsewhere, Hurricane Eugene has reached major hurricane status over the open Pacific, but forecasters said no coastal watches or warnings are in effect.

The Category 3 storm, with winds of 185 kilometers per hour, was 935 kilometers south of the southern tip of Mexico's Baja California area. The storm could strengthen further before beginning to weaken on Wednesday night as it moves over cooler waters.