A WIND SPEED OF 173 KNOTS WAS MEASURED FROM A GPS
DROPSONDE AT 500 FT AT ABOUT 1900Z.
http://www.nhc.noaa.gov/archive/dis/NAL1398.022
Since that wind was found at only 500 feet then the surface wind should be around 165 knots. From the 850 millibar level we don't even use this big of a decrease. Could this monster of been stronger then what we think?
Yes I'v got looking through the old Advisories.

