Concentric eyewalls again.
Product: NOAA Vortex Message (URNT12 KWBC)
Transmitted: 25th day of the month at 11:31Z
Aircraft: Lockheed WP-3D Orion (Reg. Num. N43RF)
Storm Number & Year: 09L in 2011
Storm Name: Irene (flight in the North Atlantic basin)
Mission Number: 20
Observation Number: 13
A. Time of Center Fix: 25th day of the month at 11:11Z
B. Center Fix Coordinates: 25°18'N 76°30'W (25.3N 76.5W)
B. Center Fix Location: 55 miles (88 km) to the ENE (73°) from Nassau, Bahamas.
C. Minimum Height at Standard Level: Not Available
D. Estimated (by SFMR or visually) Maximum Surface Wind: 85kts (~ 97.8mph)
E. Location of the Estimated Maximum Surface Wind: 32 nautical miles (37 statute miles) to the E (95°) of center fix
F. Maximum Flight Level Wind Inbound: From 172° at 116kts (From the S at ~ 133.5mph)
G. Location of Maximum Flight Level Wind Inbound: 37 nautical miles (43 statute miles) to the E (94°) of center fix
H. Minimum Sea Level Pressure: 951mb (28.08 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 17°C (63°F) at a pressure alt. of 2,450m (8,038ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 20°C (68°F) at a pressure alt. of 2,442m (8,012ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 17°C (63°F)
K. Sea Surface Temp (collected at same location as temp inside eye): Not Available
L. Eye Character: Open in the southwest
M. Eye Shape: Concentric (has an inner and outer eye)
M. Inner Eye Diameter: 20 nautical miles (23 statute miles)
M. Outer Eye Diameter: 40 nautical miles (46 statute miles)
N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
N. Fix Level: Other - Not surface, 1500ft, 925mb (if vortex is newer than about mid 90's; see note for more), 850mb, 700mb, 500mb, 400mb, 300mb or 200mb
O. Navigation Fix Accuracy: 1 nautical mile
O. Meteorological Accuracy: 1 nautical mile
Remarks Section:
Maximum Flight Level Wind: 116kts (~ 133.5mph) in the east quadrant at 10:53Z
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