The National Hurricane Center upgraded Hurricane Matthew to a Category 4 hurricane on Thursday.

According to the 11 a.m. update, the storm has sustained winds of 140mph. The Hurricane Center calls the storm "extremely dangerous" as it moves towards Florida. Matthew is about 180 miles southeast of West Palm Beach, Florida as of 11 a.m.

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Ahead of this dangerous storm, Jacksonville's Mayor Lenny Curry issued a mandatory evacuation for the beach areas as well as all homes in zones A, B and C. Several other counties also issued mandatory evacuations.

The New National Hurricane Center track shows the storm could be Category 4 when it reaches the Florida coast.