ATLANTIC: 'MAJOR' HURRICAN IGOR

Hey Joss

Actually I aways thought SFMR were 10 second estimated winds - I may be wrong?

RECON is conducting a flight into Igor right now and during the first centre pass I could not see a SFMR report > 64 knots (CAT1)

I stand by my thoughts that Igor is now a tropical storm but with a HUGE wind fields. It will be interesting to see if the NHC degrades Igor for keeps him at CAT1.

Edit - just as I typed this the following RECON report came through so still CAT1
"SFMR Peak (10s) Sfc. Wind: 67 knots (~ 77.0 mph)"
 
954mb and NO CAT1 winds found from RECON

** no eye left **

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 19th day of the month at 18:17Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 300)
Storm Number & Year: 11L in 2010
Storm Name: Igor (flight in the North Atlantic basin)
Mission Number: 6
Observation Number: 06
A. Time of Center Fix: 19th day of the month at 17:40:40Z
B. Center Fix Coordinates: 30°45'N 65°54'W (30.75N 65.9W)
B. Center Fix Location: 125 miles (202 km) to the SSW (211°) from Hamilton, Bermuda (GBR).
C. Minimum Height at Standard Level: 2,681m (8,796ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 61kts (~ 70.2mph)
E. Location of the Estimated Maximum Surface Wind: 36 nautical miles (41 statute miles) to the ESE (112°) of center fix
F. Maximum Flight Level Wind Inbound: From 204° at 75kts (From the SSW at ~ 86.3mph)
G. Location of Maximum Flight Level Wind Inbound: 71 nautical miles (82 statute miles) to the ESE (121°) of center fix
H. Minimum Sea Level Pressure: 954mb (28.17 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 12°C (54°F) at a pressure alt. of 3,048m (10,000ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 17°C (63°F) at a pressure alt. of 3,050m (10,007ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 8°C (46°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Not Available
M. Eye Shape: Not Available
N. Fix Determined By: Penetration, Wind, Pressure and Temperature
N. Fix Levels (sfc and flt lvl centers are within 5nm of each other): Surface and 700mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 1 nautical mile
Remarks Section:
Maximum Wind Outbound: 79kts (~ 90.9mph) in the northwest quadrant at 18:14:30Z
Maximum Flight Level Wind: 79kts (~ 90.9mph) in the northwest quadrant at 18:14:30Z
Maximum Flight Level Temp: 17°C (63°F) which was observed 12 nautical miles (14 statute miles) to the ESE (106°) from the flight level center
 
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Despite weakening and missing Bermuda to the W, the cyclone produced hurricane conditions on the Island. The airport had a sustained 2-min wind of 64 kt-- so it was a bona-fide hurricane. The very high readings at Commissioner's Point-- including a gust to 101 kt-- aren't representative of the surface wind, as that location is a whopping 262 ft ASL.
 
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