MiamiensisWx wrote:Ptarmigan wrote:I personally think Hattie was stronger than what was recorded.
Is your judgment based upon any data you have personally seen? On 28 October about 2000Z, aircraft reported a
central pressure of 956 mb along with an eye diameter of just 10 miles (9 nautical miles). As the system was then somewhat small and the movement not especially slow, the 110-kt intensity in HURDAT looks reasonable at that time. I do tend to agree that Hattie may have briefly been deeper than 920 mb on 30 October 1961. According to
reconnaissance data, Hattie gradually deepened to 920 mb about 2200Z, when the eye was estimated at 22 miles (19 nautical miles) in diameter. At 2330Z, the eye on radar contracted to just 16 miles (14 nautical miles) wide, but then returned to 22 mi / 19 n mi as the pressure rose to 930 mb, more than twelve hours before landfall in Belize. The hurricane may have dipped below 920 mb between 2200Z and 2330Z. Of course, such an estimate is speculation. Clearly, Hattie was still equally intense at landfall, based upon
measurements of 920-930 mb inside the center.
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Based on all that data, my guess - unofficial - would be to change them as follows (red = revision):
AL091961, HATTIE, 20,
19611027, 1200, TS, 11.6N, 81.5W, 45, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611027, 1800, TS, 12.0N, 81.6W, 55, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611028, 0000, HU, 12.8N, 81.7W, 65, 991, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611028, 0600, HU, 12.9N, 81.7W,
80, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611028, 1200, HU, 13.5N, 81.6W,
95,
969, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611028, 1800, HU, 14.1N, 81.5W,
100,
963, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611029, 0000, HU, 15.0N, 81.4W, 110, 952, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611029, 0600, HU, 16.1N, 81.2W,
105, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611029, 1200, HU, 16.9N,
81.4W,
100, 963, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611029, 1800, HU, 17.7N, 81.9W,
105,
958, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611030, 0000, HU, 18.2N, 82.4W,
110, 956, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611030, 0600, HU, 18.5N, 83.8W,
125, 942, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611030, 1200, HU, 18.4N,
84.4W,
135,
929, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611030, 1800, HU, 18.2N, 85.2W,
145,
921, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611031, 0000, HU, 17.9N, 86.1W,
145, 920, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611031, 0600, HU, 17.6N, 87.1W,
135,
927, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611031, 1200, HU, 17.2N, 88.1W,
130, 930, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611031, 1800, TS, 16.9N, 88.9W, 60, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611101, 0000, TS, 16.6N, 89.6W, 55, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,
19611101, 0600, TS, 15.7N, 90.1W, 45, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999, -999,