12:57pm CDT: 996mb vortex with 35 knots of surface wind
Posted by Chris in Tampa on 8/29/2017, 2:28 pm
| So the center surface pressure might be about 993mb. 996mb. 35 knots of surface wind. (350°, from the N) First wind from significant levels when released from plane from the 832mb level, 5 knots (85°, from the E).  Vortex: URNT12 KNHC 291821 VORTEX DATA MESSAGE AL092017 A. 29/17:54:10Z B. 29 deg 03 min N 094 deg 31 min W C. 850 mb 1398 m D. 37 kt E. 101 deg 32 nm F. 162 deg 33 kt G. 086 deg 53 nm H. 996 mb I. 19 C / 1619 m J. 21 C / 1620 m K. 16 C / NA L. NA M. NA N. 1345 / 8 O. 0.02 / 5 nm P. AF302 2109A HARVEY OB 02 MAX OUTBOUND AND MAX FL WIND 44 KT 278 / 25 NM 18:04:10Z CNTR DROPSONDE SFC WIND 350 / 35 KT Product: Air Force Vortex Message (URNT12 KNHC) Transmitted: 29th day of the month at 18:21Z Agency: United States Air Force Aircraft: Lockheed WC-130J Hercules with reg. number AF96-5302 Storm Number & Year: 09 in 2017 Storm Name: Harvey (flight in the North Atlantic basin) Mission Number: 21 Observation Number: 02 A. Time of Center Fix: 29th day of the month at 17:54:10Z B. Center Fix Coordinates: 29°03'N 94°31'W (29.05N 94.5167W) B. Center Fix Location: 25 statute miles (40 km) to the SE (131°) from Galveston, TX, USA. C. Minimum Height at Standard Level: 1,398m (4,587ft) at 850mb D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 37kts (~ 42.6mph) E. Location of the Estimated Maximum Surface Wind Inbound: 32 nautical miles (37 statute miles) to the E/ESE (101°) of center fix F. Maximum Flight Level Wind Inbound: From 162° at 33kts (From the SSE at ~ 38.0mph) G. Location of Maximum Flight Level Wind Inbound: 53 nautical miles (61 statute miles) to the E (86°) of center fix H. Minimum Sea Level Pressure: 996mb (29.42 inHg) I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 19°C (66°F) at a pressure alt. of 1,619m (5,312ft) J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 21°C (70°F) at a pressure alt. of 1,620m (5,315ft) 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: Not Available M. Eye Shape: Not Available N. Fix Determined By: Penetration, Wind, Pressure and Temperature N. Fix Level: 850mb O. Navigational Fix Accuracy: 0.02 nautical miles O. Meteorological Accuracy: 5 nautical miles Remarks Section: Maximum Outbound and Flight Level Wind: 44kts (~ 50.6mph) which was observed 25 nautical miles (29 statute miles) to the W (278°) from the flight level center at 18:04:10Z Dropsonde Surface Wind at Center: From 350° at 35kts (From the N at 40mph) With short range radar:  |
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In this thread:
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