#4732 Postby GCANE » Tue Sep 05, 2017 8:36 pm
Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 6th day of the month at 1:27Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5305
Storm Number & Year: 11 in 2017
Storm Name: Irma (flight in the North Atlantic basin)
Mission Number: 11
Observation Number: 08 ( See all messages of this type for this mission. )
A. Time of Center Fix: 6th day of the month at 1:08:30Z
B. Center Fix Coordinates: 17°16'N 60°42'W (17.2667N 60.7W)
B. Center Fix Location: 76 statute miles (123 km) to the E (83°) from Saint John's, Antigua and Barbuda.
C. Minimum Height at Standard Level: 2,369m (7,772ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 143kts (~ 164.6mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 13 nautical miles (15 statute miles) to the NE (44°) of center fix
F. Maximum Flight Level Wind Inbound: From 137° at 158kts (From the SE at ~ 181.8mph)
G. Location of Maximum Flight Level Wind Inbound: 15 nautical miles (17 statute miles) to the NE (45°) of center fix
H. Minimum Sea Level Pressure: 917mb (27.08 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 9°C (48°F) at a pressure alt. of 3,051m (10,010ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 22°C (72°F) at a pressure alt. of 3,051m (10,010ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 21°C (70°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Closed
M. Eye Shape & Diameter: Circular with a diameter of 24 nautical miles (28 statute miles)
N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
N. Fix Level: 700mb
O. Navigational Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 1 nautical mile
Remarks Section:
Maximum Flight Level Wind: 161kts (~ 185.3mph) which was observed 18 nautical miles (21 statute miles) to the ENE (68°) from the flight level center at 23:13:30Z
Dropsonde Surface Wind at Center: From 355° at 10kts (From the N at 12mph)
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