Isaias strengthens into the first hurricane of the Atlantic season

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Hurricane Isaias became the first hurricane of the Atlantic season, according to the National Hurricane Center. It was forecast to approach the U.S. Gulf Coast later in the week, bringing heavy rain and possible flash flooding.

The National Hurricane Center said late Wednesday that the hurricane was on track to strike the U.S. Gulf Coast later in the week. It's expected to bring heavy rains and potentially flash flooding.