Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 15th day of the month at 12:25Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF98-5308
Storm Name: Erin
Storm Number & Year: 05 in 2025 (flight in the North Atlantic basin)
Mission Number: 4
Observation Number: 04

A. Time of Center Fix: 15th day of the month at 12:02:00Z
B. Center Fix Coordinates: 18.03N 55.26W
B. Center Fix Location: 710 statute miles (1,143 km) to the E (92°) from San Juan, Puerto Rico (U.S.).
C. Minimum Height at Standard Level: 3,059m (10,036ft) at 700mb
D. Minimum Sea Level Pressure: 998mb (29.47 inHg) - Extrapolated
E. Dropsonde Surface Wind at Center (Undecoded): NA
F. Eye Character: Closed
G. Eye Shape: Elliptical (oval shaped)
G. Orientation of Major Axis in Elliptical Eye: 90° to 270° (E to W)
G. Length of Major Axis in Elliptical Eye: 10 nautical miles
G. Length of Minor Axis in Elliptical Eye: 4 nautical miles
H. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 27kts (31.1mph)
I. Location & Time of the Estimated Maximum Surface Wind Inbound: 30 nautical miles (35 statute miles) to the WSW (237°) of center fix at 11:53:30Z
J. Maximum Flight Level Wind Inbound: From 314° at 22kts (From the NW at 25.3mph)
K. Location & Time of the Maximum Flight Level Wind Inbound: 3 nautical miles to the SW (230°) of center fix at 12:01:00Z
L. Estimated (by SFMR or visually) Maximum Surface Wind Outbound: 65kts (74.8mph)
M. Location & Time of the Estimated Maximum Surface Wind Outbound: 19 nautical miles (22 statute miles) to the NE (46°) of center fix at 12:07:30Z
N. Maximum Flight Level Wind Outbound: From 134° at 75kts (From the SE at 86.3mph)
O. Location & Time of the Maximum Flight Level Wind Outbound: 19 nautical miles (22 statute miles) to the NE (46°) of center fix at 12:07:30Z
P. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 13°C (55°F) at a pressure alt. of 3,052m (10,013ft)
Q. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 12°C (54°F) at a pressure alt. of 3,051m (10,010ft)
R. Dewpoint Temp (collected at same location as temp inside eye): 9°C (48°F)
R. Sea Surface Temp (collected at same location as temp inside eye): Not Available
S. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
S. Fix Level: 700mb
T. Navigational Fix Accuracy: 0.02 nautical miles
T. Meteorological Accuracy: 1.25 nautical miles

Remarks Section:

Maximum Flight Level Wind: 75kts (~ 86.3mph) which was observed 19 nautical miles (22 statute miles) to the NE (46°) from the flight level center at 12:07:30Z
Sea Level Pressure Extrapolation From: 700mb