It's rolling the dice a bit but from what I've seen of forecasts Irma
will likely be a Cat 1 storm by the time it hits Georgia or the
Carolina's. If it tracts up the east coast of Florida much of it's
energy will be lost. I wouldn't be overly concerned with a Cat 1, but
if their area is prone to flooding, getting out of Dodge might still be
a good idea.
We got flooded around here from a record breaking no name storm so you
can't really guess what may cause a flood. I got 2" of rain here today
from an afternoon thunderstorm.This place is saturated so this water
is not going down very fast.