Tropical Storm Ernesto churns toward Jamaica

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This NOAA satellite image taken Friday, Aug. 03, 2012, at 1:45 a.m. EDT shows Tropical Storm Ernesto just 90 miles east of St. Lucia. This system continues moving west at 22 mph at tropical storm strength with winds up to 50 mph. Tropical storm warnings remain in effect for Barbados, St. Vincent, The Grenadines, Dominica, St. Lucia, Martinique, and Guadeloupe. Expect heavy rains and strong winds in these areas. To the north, a strong tropical wave brings widespread showers and thunderstorms to the Bahamas and Cuba, which moves westward into southern Florida. This system kicks up scattered showers and thunderstorms as it slowly moves westward. (AP Photo/Weather Underground)Tropical Storm Ernesto churned over open waters early Saturday on a path toward Jamaica and Mexico after dumping heavy rain on islands in the eastern Caribbean.

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