Atlantic's first named storm forms early
POSTED: 11:16 a.m. EDT, May 9, 2007
Story Highlights• Subtropical Storm Andrea forms off U.S. Southeast coast
• Atlantic hurricane season's official start three-plus weeks away
• First named storm had top sustained winds near 45 mph
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MIAMI, Florida (AP) -- 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.
The year's first named storm had top sustained winds near 45 mph (72 kph) and was centered about 140 miles (225 kilometers) southeast of Savannah, Georgia, at 11 a.m. ET, 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.
