First VDM, rather weak, but closed and fairly well defined, much as expected. Would not be unreasonable for NHC to begin advisories by 4PM CDT.

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 28th day of the month at 19:10Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5304
Mission Purpose: Investigate first suspect area (flight in the North Atlantic basin)
Mission Number: 1
Observation Number: 04

A. Time of Center Fix: 28th day of the month at 18:36:30Z
B. Center Fix Coordinates: 19.28N 93.89W
B. Center Fix Location: 109 statute miles (175 km) to the NW (325°) from Villahermosa, Tabasco, Mexico.
C. Minimum Height at Standard Level: Not Available
D. Minimum Sea Level Pressure: 1012mb (29.89 inHg) - Extrapolated
E. Dropsonde Surface Wind at Center (Undecoded): NA
F. Eye Character: Not Available
G. Eye Shape: Not Available
H. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: Not Available
I. Location & Time of the Estimated Maximum Surface Wind Inbound (Undecoded): NA
J. Maximum Flight Level Wind Inbound: From 223° at 20kts (From the SW at 23.0mph)
K. Location & Time of the Maximum Flight Level Wind Inbound: 25 nautical miles (29 statute miles) to the SE (144°) of center fix at 18:28:30Z
L. Estimated (by SFMR or visually) Maximum Surface Wind Outbound: Not Available
M. Location & Time of the Estimated Maximum Surface Wind Outbound (Undecoded): NA
N. Maximum Flight Level Wind Outbound: From 59° at 15kts (From the ENE at 17.3mph)
O. Location & Time of the Maximum Flight Level Wind Outbound: 24 nautical miles (28 statute miles) to the NW (315°) of center fix at 18:44:30Z
P. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 22°C (72°F) at a pressure alt. of 304m (997ft)
Q. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 23°C (73°F) at a pressure alt. of 304m (997ft)
R. Dewpoint Temp (collected at same location as temp inside eye): 21°C (70°F)
R. Sea Surface Temp (collected at same location as temp inside eye): Not Available
S. Fix Determined By: Penetration, Wind, Pressure and Temperature
S. Fix Levels (surface & flight level centers within 5nm of each other): Surface and 1,500 feet
T. Navigational Fix Accuracy: 0.02 nautical miles
T. Meteorological Accuracy: 9 nautical miles

Remarks Section - Remarks That Were Decoded...

Maximum Flight Level Wind: 20kts (~ 23.0mph) which was observed 25 nautical miles (29 statute miles) to the SE (144°) from the flight level center at 18:28:30Z
Sea Level Pressure Extrapolation From: Below 1500 feet

Remarks Section - Additional Remarks...

FIXED AT FL010 AGL