Amen on the wind speed data provided on NOAA. I was out two weeks ago sailing in the Chesapeake off of Annapolis in 12-15 knots coming from the south. Had Channel 1 WX on and it was reporting 8 knots at Thomas Point Light. Same wind speed reported for two hours.
I always check NWS on NOAA and the marine forecasts for the Bay from Sandy Point south. However, I agree with SailorMitch - just go with what you've got and make the best of it.