A low pressure zone was expected to bring more flooding to Mexico's east coast Thursday as Hurricane Manuel closed in from the West.
Forecasters at the National Hurricane Center gave the low pressure zone a 70 percent chance of developing into a tropical cyclone by the end of the day Friday.
Mexico already suffered heavy rain, flooding and mudslides this week and last weekend as Hurricane Irene and a tropical depression pounded its coasts.
In the Atlantic, Tropical Depression Humberto was moving north far from North America with winds at 35 mph, and forecasters expected it to be absorbed by another front by Friday night.
A second area of cloudiness and showers just northeast of the Bahamas was drawing forecasters' attention Thursday morning and expected to develop into an area of low pressure over the next few days. The National Hurricane Center gave it only a 10 percent chance, though, of tropical cyclone formation over the next 48 hours.