updated 8/26/2009 12:13:07 PM ET 2009-08-26T16:13:07

Tropical Storm Danny has formed in the open Atlantic off the Bahamas, and forecasters say it could get stronger as it moves toward the U.S.

The storm has top winds of 45 mph and is moving to the west-northwest at 18 mph. As of 11 a.m. EDT Wednesday, the storm's center was about 445 miles east of Nassau, Bahamas and about 775 miles south of Cape Hatteras, North Carolina.

The current forecast has the storm on a path to clip the U.S. East Coast over the weekend, but a storm's track can be difficult to predict days in advance. People in the Bahamas and the southeastern U.S. are advised to monitor the storm.

Meanwhile, far out in the Pacific, Tropical Storm Ignacio has weakened as it moves northwest with top winds of 45 mph.

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