(WSVN) - The National Hurricane Center has issued a hurricane warning for South Florida. Friday night, forecasters predicted Hurricane Irma will likely make landfall in Florida as a Category 4 storm.

Miami-Dade, Broward and Monroe counties are all now under a warning, issued 48 hours in advance by the NHC, Thursday night. This means hurricane conditions are expected within 36 hours of the anticipated onset of hurricane-force winds.

As of Friday evening, all of South Florida remained under a flood watch through Monday at 8 p.m.

By the time a warning is announced, all storm preparations and evacuations should be completed.

The NHC in Miami said hurricane-force winds extended 50 miles from Irma’s center and tropical storm-force winds extended 175 miles.

As of the 11 p.m. advisory, Friday, Irma was located 300 miles south-southeast of Miami. It was moving west at 13 miles per hour, with wind speeds of 160 miles per hour.

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