Bill Vortex: 962mb
Posted by Chris in Tampa on 8/18/2009, 2:31 pm
URNT12 KNHC 181818
VORTEX DATA MESSAGE   AL032009
A. 18/17:46:10Z
B. 16 deg 14 min N
 051 deg 44 min W
C. 700 mb 2793 m
D. 85 kt
E. 315 deg 16 nm
F. 049 deg 94 kt
G. 315 deg 22 nm
H. 962 mb
I. 9 C / 3076 m
J. 17 C / 3078 m
K. 8 C / NA
L. CLOSED WALL
M. E06/40/30
N. 12345 / 7
O. 0.02 / 3 nm
P. AF303 0103A BILL               OB 07
MAX FL WIND 97 KT SE QUAD 17:51:50Z
MAX OUTBOUND FL WIND 97 KT SE QUAD 17:51:50Z

Decoded:

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 18th day of the month at 18:18Z
Aircraft: Air Force Aircraft (Last 3 digits of the tail number are 303)
Storm Number & Year: 03L in 2009
Storm Name: Bill (flight originating in the North Atlantic basin)
Mission Number: 1
Observation Number: 07
A. Time of Center Fix: 18th day of the month at 17:46:10Z
B. Center Fix Coordinates: 16°14'N 51°44'W (16.2333N 51.7333W) (View map)
B. Center Fix Location: 570 miles (917 km) to the ENE (68°) from Bridgetown, Barbados.
C. Minimum Height at Standard Level: 2,793m (9,163ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind: 85kts (~ 97.8mph)
E. Location of the Estimated Maximum Surface Wind: 16 nautical miles (18 statute miles) to the NW (315°) of center fix
F. Maximum Flight Level Wind Inbound: From 49° at 94kts (From the NE at ~ 108.2mph)
G. Location of Maximum Flight Level Wind Inbound: 22 nautical miles (25 statute miles) to the NW (315°) of center fix
H. Minimum Sea Level Pressure: 962mb (28.41 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 9°C (48°F) at a pressure alt. of 3,076m (10,092ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 17°C (63°F) at a pressure alt. of 3,078m (10,098ft)
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: Closed Wall
M. Eye Shape: Elliptical (oval shaped)
M. Orientation of Major Axis in Elliptical Eye: 60° to 240° (ENE to WSW)
M. Length of Major Axis in Elliptical Eye: 40 nautical miles (46 statute miles)
M. Length of Minor Axis in Elliptical Eye: 30 nautical miles (35 statute miles)
N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
N. Fix Level: 700mb
O. Navigation Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 3 nautical miles
Remarks Section:
Maximum Flight Level Wind: 97kts (~ 111.6mph) in the southeast quadrant at 17:51:50Z
Maximum Flight Level Wind Outbound: 97kts (~ 111.6mph) in the southeast quadrant at 17:51:50Z

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Bill Vortex: 962mb - Chris in Tampa, 8/18/2009, 2:31 pm
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