We’ve worked on a subjective analysis of maximum wind gusts (MPH) from Hurricane Earl across North Carolina. The map is available at this link http://www4.ncsu.edu/~nwsfo/storage/cases/maps/windgust.20100903.gif and is similar to wind gusts analysis for other tropical cyclones that can be found at http://www.erh.noaa.gov/rah/events/
All of the hurricane force wind gusts were confined to the Outer Banks. There were only 3 reports of gusts >55 MPH on the mainland and they include the Alligator River Bridge (70 MPH), Cedar Island (67 MPH), and Stumpy Point (61 MPH).
Another wind analysis product is available from the Hurricane Research Division (HRD). A few selected HRD Surface Wind Analysis (details http://www.aoml.noaa.gov/hrd/Storm_pages/surf_background.html) for Earl are available at the links below the example image from 2010/09/03 0430 UTC.
Finally, a composite wind swath image from each of the NHC advisories is shown below.