Hurricane Irma has been re-graded to a Cat 5 Hurricane.
++ It is now strengthening. ++

Now 345 miles from Miami, moving at 12 mph.
Therefore, likely to reach Florida on Sun morning.

The latest course will take the storm right through the Florida Keys. Hard to imagine that anyone would "sit this one out" in the Keys. Will Key West even survive???

The ground track has shifted west, the Eye will not go through Miami. It is now forecast to graze the west coast of southern Florida, right past Fort Myers. Looks like vulnerable suburbs in Tampa should be evacuating. And all towns nearby.