Product: NOAA Vortex Message (URNT12 KWBC)
Transmitted: 5th day of the month at 11:29Z
Agency: National Oceanic and Atmospheric Administration (NOAA)
Aircraft: Lockheed WP-3D Orion (Reg. Num. N42RF)
Storm Number & Year: 11 in 2017
Storm Name: Irma (flight in the North Atlantic basin)
Mission Number: 7
Observation Number: 10
A. Time of Center Fix: 5th day of the month at 11:10:54Z
B. Center Fix Coordinates: 16°42'N 57°41'W (16.7N 57.6833W)
B. Center Fix Location: 264 statute miles (425 km) to the ENE (69°) from Roseau, Dominica.
C. Minimum Height at Standard Level: Not Available
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 110kts (~ 126.6mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 12 nautical miles (14 statute miles) to the S (188°) of center fix
F. Maximum Flight Level Wind Inbound: From 297° at 120kts (From the WNW at ~ 138.1mph)
G. Location of Maximum Flight Level Wind Inbound: 17 nautical miles (20 statute miles) to the S (189°) of center fix
H. Minimum Sea Level Pressure: 930mb (27.47 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 14°C (57°F) at a pressure alt. of 2,453m (8,048ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 21°C (70°F) at a pressure alt. of 2,412m (7,913ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 16°C (61°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 23 nautical miles (26 statute miles)
N. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
N. Fix Level: Other - Not surface, 1500ft, 925mb, 850mb, 700mb, 500mb, 400mb, 300mb or 200mb
O. Navigational Fix Accuracy: 0.1 nautical miles
O. Meteorological Accuracy: 1 nautical mile
Remarks Section:
Maximum Flight Level Outbound and Flight Level Wind: 171kts (~ 196.8mph) which was observed 19 nautical miles (22 statute miles) to the NNE (24°) from the flight level center at 11:16:47Z
Maximum Flight Level Temp: 21°C (70°F) which was observed 6 nautical miles to the NNE (12°) from the flight level center
Dropsonde Surface Wind at Center: From 265° at 10kts (From the W at 12mph)