At the moment, Irma appears to be headed inland directly over cities like Columbia, SC and Charlotte, NC. Some models show Irma going slightly east or west of Charlotte. So not sure of the impact to Carolinas coasts.
The post to which I was responding was relating to predicted record storm surge in GA and SC, possibly reaching into NC, as a result of landfall in the area of the GA-SC border.
I don’t know if this has been posted yet, part of Pinellas County is being evacuated.