The shift to northwest winds will blow the water out of the sounds and cause a surge on the west-facing shores of the barrier islands and where I live, Roanoke Island. The saving grace of Arthur is that it looks like it will be a fast mover and not pile up the sound waters on either side. Irene as only a Cat 1 when it got here, but since it crawled by at a snails pace, it blew all the water out our side and flooded Pamlico County, etc. Then when the winds turned all that water came rolling back and hit us really hard on the upper Outer Banks. We heard over and over how nobody had ever seen soundside flooding in Wanchese, Manteo and Rodanthe like that. I'm only 58 so my "never saw that before" was tempered by the 94 year old natives that said the same thing. If Arthur keeps his forward speed up, we might get a 5 foot soundside surge, but we can deal with that ok.