wxman57 wrote:
As of last week, Bill Read commented (at AMS meeting in Phoenix) that they were reviewing that observation to determine whether to recognize it as an accurate report. Eyewall ,mesovortices can produce extreme wind gusts, as was indicated by that dropsonde report of around 238 mph in Isabel in 2003. And it's also possible that the 212 mph gust occurred in a tornado. That wouldn't make Gustav a Cat 5, though.
Just wanted to mention that I saw a photo of the anemometer trace and the winds were not associated with a tornado. The gusts increased nonlinearly, and were from the north -- the western portion of the eyewall.