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1st Atlantic Hurricane Becomes Category 3

This infrared satellite image from the National Oceanic and Atmospheric Administration's National Hurricane Center shows Hurricane Bertha gaining strength over the Atlantic at 4:45 a.m. Eastern, July 7, 2008.
CBS/NOAA/National Hurricane Center
Hurricane Bertha has strengthened to a Category 3 storm.

The Atlantic season's first hurricane is still far from land, but the National Hurricane Center says it now has maximum sustained winds of 115 miles an hour.

The center of the storm is located about 730 miles east-northeast of the Northern Leeward Islands and about 1,150 miles southeast of Bermuda.

It's still to early to tell whether Bertha will hit the island, but forecasters urged residents to monitor the storm's progress.

Forecasters say it's moving west-northwest at about 12 miles an hour.