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11:40pm EDT sonde: 946mb, 10 knots of surface wind

Posted by Chris in Tampa on 9/19/2017, 12:05 am

And latest pass has 64 knot 10 second estimated surface winds by SFMR to be out around 35 nautical miles from center in NE quadrant.

URNT12 KNHC 190357
A. 19/03:36:10Z
B. 15 deg 32 min N
 061 deg 33 min W
C. 700 mb 2630 m
D. 119 kt
E. 347 deg 7 nm
F. 075 deg 126 kt
G. 349 deg 8 nm
H. 946 mb
I. 10 C / 3045 m
J. 16 C / 3044 m
K. 13 C / NA
M. C12
N. 12345 / 7
O. 0.02 / 1 nm
P. AF303 0315A MARIA              OB 17
MAX FL WIND 136 KT 109 / 29 NM 23:28:00Z

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 19th day of the month at 3:57Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5303
Storm Number & Year: 15 in 2017
Storm Name: Maria (flight in the North Atlantic basin)
Mission Number: 3
Observation Number: 17
A. Time of Center Fix: 19th day of the month at 3:36:10Z
B. Center Fix Coordinates: 15°32'N 61°33'W (15.5333N 61.55W)
B. Center Fix Location: 19 statute miles (31 km) to the NW (324°) from Roseau, Dominica.
C. Minimum Height at Standard Level: 2,630m (8,629ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 119kts (~ 136.9mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 7 nautical miles (8 statute miles) to the NNW (347°) of center fix
F. Maximum Flight Level Wind Inbound: From 75° at 126kts (From the ENE at ~ 145.0mph)
G. Location of Maximum Flight Level Wind Inbound: 8 nautical miles (9 statute miles) to the NNW/N (349°) of center fix
H. Minimum Sea Level Pressure: 946mb (27.94 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 10°C (50°F) at a pressure alt. of 3,045m (9,990ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 16°C (61°F) at a pressure alt. of 3,044m (9,987ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 13°C (55°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 12 nautical miles (14 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: 136kts (~ 156.5mph) which was observed 29 nautical miles (33 statute miles) to the ESE (109°) from the flight level center at 23:28:00Z
Dropsonde Surface Wind at Center: From 135° at 10kts (From the SE at 12mph)


In this thread:

11pm Maria - Shalista, 9/18/2017, 10:59 pm

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