12:40am EDT sonde: 943mb, 8 knots of surface wind
Posted by Chris in Tampa on 9/19/2017, 1:32 am
This mission now over. Through 12:52am EDT: While this was suspect, there was 132 knots (151.9 mph) and 131 knots (150.8 mph) in a row, both suspect, though in a place you would expect those winds. Given the movement, it could be even higher in the NE quadrant if there is no reason to question those. Recon images closeup when vortex came in...   URNT12 KNHC 190501 VORTEX DATA MESSAGE AL152017 A. 19/04:36:10Z B. 15 deg 38 min N 061 deg 42 min W C. 700 mb 2606 m D. 104 kt E. 182 deg 6 nm F. 271 deg 110 kt G. 182 deg 6 nm H. 943 mb I. 12 C / 3056 m J. 17 C / 3033 m K. 13 C / NA L. CLOSED M. C12 N. 12345 / 7 O. 0.02 / 1 nm P. AF303 0315A MARIA OB 23 MAX FL WIND 136 KT 113 / 39 NM 23:28:00Z MAX OUTBOUND FL WIND 131 KT 331 / 10 NM 04:39:00Z CNTR DROPSONDE SFC WIND 125 / 8 KT Product: Air Force Vortex Message (URNT12 KNHC) Transmitted: 19th day of the month at 5:01Z 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: 23 A. Time of Center Fix: 19th day of the month at 4:36:10Z B. Center Fix Coordinates: 15°38'N 61°42'W (15.6333N 61.7W) B. Center Fix Location: 26 statute miles (42 km) to the S (179°) from Basse Terre, Guadeloupe (France). C. Minimum Height at Standard Level: 2,606m (8,550ft) at 700mb D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 104kts (~ 119.7mph) E. Location of the Estimated Maximum Surface Wind Inbound: 6 nautical miles (7 statute miles) to the S (182°) of center fix F. Maximum Flight Level Wind Inbound: From 271° at 110kts (From the W at ~ 126.6mph) G. Location of Maximum Flight Level Wind Inbound: 6 nautical miles (7 statute miles) to the S (182°) of center fix H. Minimum Sea Level Pressure: 943mb (27.85 inHg) I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 12°C (54°F) at a pressure alt. of 3,056m (10,026ft) J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 17°C (63°F) at a pressure alt. of 3,033m (9,951ft) 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 39 nautical miles (45 statute miles) to the ESE (113°) from the flight level center at 23:28:00Z Maximum Flight Level Wind Outbound: 131kts (~ 150.8mph) which was observed 10 nautical miles (12 statute miles) to the NNW (331°) from the flight level center at 4:39:00Z Dropsonde Surface Wind at Center: From 125° at 8kts (From the SE at 9mph) |
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