cieldumort
(Moderator)
Sat Aug 28 2021 06:08 AM
Re: Hurricane Ida Headed for Northern Gulf Coast

Last center fix from Mission 6 into Ida confirms that the eye has returned, albeit open in the south. Stout temp differential from inside/outside the eye as well as pressure dropping w/ every fix indicates intensification has also resumed.
Quote:

A. Time of Center Fix: 28th day of the month at 5:28:40Z
B. Center Fix Coordinates: 23.33N 84.61W
B. Center Fix Location: 143 statute miles (231 km) to the W (276°) from Havana, Cuba.
C. Minimum Height at Standard Level: 3,024m (9,921ft) at 700mb
D. Minimum Sea Level Pressure: 988mb (29.18 inHg)
E. Dropsonde Surface Wind at Center: From 150° at 20kts (From the SSE at 23mph)
F. Eye Character: Open in the south

G. Eye Shape & Diameter: Circular with a diameter of 24 nautical miles (28 statute miles)
H. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 65kts (74.8mph)
I. Location & Time of the Estimated Maximum Surface Wind Inbound: 23 nautical miles (26 statute miles) to the ENE (65°) of center fix at 5:21:00Z
J. Maximum Flight Level Wind Inbound: From 167° at 65kts (From the SSE at 74.8mph)
K. Location & Time of the Maximum Flight Level Wind Inbound: 38 nautical miles (44 statute miles) to the ENE (76°) of center fix at 5:16:30Z
L. Estimated (by SFMR or visually) Maximum Surface Wind Outbound: 59kts (67.9mph)
M. Location & Time of the Estimated Maximum Surface Wind Outbound: 15 nautical miles (17 statute miles) to the N (2°) of center fix at 5:33:00Z
N. Maximum Flight Level Wind Outbound: From 105° at 64kts (From the ESE at 73.6mph)
O. Location & Time of the Maximum Flight Level Wind Outbound: 30 nautical miles (35 statute miles) to the N (2°) of center fix at 5:37:00Z
P. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 9°C (48°F) at a pressure alt. of 3,046m (9,993ft)
Q. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 15°C (59°F) at a pressure alt. of 3,053m (10,016ft)

R. Dewpoint Temp (collected at same location as temp inside eye): 7°C (45°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: 3.5 nautical miles

Remarks Section:

Maximum Flight Level Wind: 74kts (~ 85.2mph) which was observed 39 nautical miles (45 statute miles) to the NE (44°) from the flight level center at 3:17:00Z





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