Hurricane Dorian now a Category 4; prolonged threat to Florida, Southeastern U.S. possible

The highest cloud tops, corresponding to the most vigorous convection, are shown in the brightest red colors. Clustering, deep convection around the center is a sign of a healthy tropical cyclone © weather.com

Dorian has strengthened into a Category 4 major hurricane, posing a prolonged danger that may last days in Florida and the southeastern United States beginning Labor Day weekend.

The Hurricane Hunters are flying through Dorian, and have found maximum sustained winds have climbed to 140 mph, making Dorian a Category 4 hurricane. Pressure has also dropped down to 948 mb, which is a 22 mb drop from the 5pm advisory. Drops in pressure are usually followed by an increase in winds.

Dorian's center is about 375 miles east of the northwestern Bahamas. The hurricane is moving toward the west-northwest at about 10 mph. This is a slight turn to the left compared to earlier in the day.

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