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Adidas410s
05-09-2007, 10:09 AM
MIAMI - Subtropical Storm Andrea formed Wednesday off the southeastern U.S. coast, more than three weeks before the official start of the Atlantic hurricane season, forecasters said.

http://image.weather.com/looper/archive/map_spectrop01_ltst_6nh_enus_600x405/5L.jpg

The year's first named storm had top sustained winds near 45 mph and was centered about 140 miles southeast of Savannah, Ga., at 11 a.m. EDT, the National Hurricane Center said.

Subtropical systems are hybrid weather formations that are usually weaker than hurricanes and tropical storms. They share characteristics of tropical systems, which get their power from warm ocean waters at their centers, and more typical bad weather that forms when warm and cold fronts collide.