Recon images through 11:22pm EDT
Posted by Chris in Tampa on 8/24/2017, 11:42 pm
Air Force through 11:22pm EDT. NOAA through 11:16pm EDT. (top right)

Earth at night imagery as background.

Long range radar:


GOES-16:


Recon: http://hurricanecity.com/recon/


That last pass (the 972mb icon) had surface wind of 17 knots with the dropsonde, so the center pressure may have been about 970 to 971mb. Vortex:



URNT12 KNHC 250321
VORTEX DATA MESSAGE   AL092017
A. 25/02:52:00Z
B. 25 deg 12 min N
 094 deg 41 min W
C. 700 mb 2841 m
D. 68 kt
E. 215 deg 9 nm
F. 311 deg 71 kt
G. 213 deg 7 nm
H. 972 mb
I. 12 C / 3062 m
J. 19 C / 3042 m
K. 11 C / NA
L. CLOSED
M. C10
N. 12345 / 7
O. 0.02 / 3 nm
P. AF307 1509A HARVEY             OB 16
MAX FL WIND 79 KT 125 / 27 NM 01:10:30Z
MAX OUTBOUND FL WIND 78 KT 300 / 10 NM 02:54:50Z
CNTR DROPSONDE SFC WIND 030 / 17 KT



Decoded:



Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 25th day of the month at 3:21Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF98-5307
Storm Number & Year: 09 in 2017
Storm Name: Harvey (flight in the North Atlantic basin)
Mission Number: 15
Observation Number: 16
A. Time of Center Fix: 25th day of the month at 2:52:00Z
B. Center Fix Coordinates: 25°12'N 94°41'W (25.2N 94.6833W)
B. Center Fix Location: 182 statute miles (293 km) to the ESE (106°) from Brownsville, TX, USA.
C. Minimum Height at Standard Level: 2,841m (9,321ft) at 700mb
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 68kts (~ 78.3mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 9 nautical miles (10 statute miles) to the SW (215°) of center fix
F. Maximum Flight Level Wind Inbound: From 311° at 71kts (From the NW at ~ 81.7mph)
G. Location of Maximum Flight Level Wind Inbound: 7 nautical miles (8 statute miles) to the SSW (213°) of center fix
H. Minimum Sea Level Pressure: 972mb (28.71 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 12°C (54°F) at a pressure alt. of 3,062m (10,046ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 19°C (66°F) at a pressure alt. of 3,042m (9,980ft)
K. Dewpoint Temp (collected at same location as temp inside eye): 11°C (52°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 10 nautical miles (12 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: 3 nautical miles

Remarks Section:
Maximum Flight Level Wind: 79kts (~ 90.9mph) which was observed 27 nautical miles (31 statute miles) to the SE (125°) from the flight level center at 1:10:30Z
Maximum Flight Level Wind Outbound: 78kts (~ 89.8mph) which was observed 10 nautical miles (12 statute miles) to the WNW (300°) from the flight level center at 2:54:50Z
Dropsonde Surface Wind at Center: From 30° at 17kts (From the NNE at 20mph)
33
In this thread:
10pm CDT Thursday: 85mph; 973mb; NW at 10mph - Chris in Tampa, 8/24/2017, 10:57 pm
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