Here is the updated National Hurricane Center IDA Advisory that was posted in the Tropical thread….
Hurricane Ida Advisory Number 12
NWS National Hurricane Center Miami FL AL092021
400 AM CDT Sun Aug 29 2021
...DANGEROUS CATEGORY 4 HURRICANE IDA STRENGTHENS SOME MORE...
...LIFE-THREATENING STORM SURGE, POTENTIALLY CATASTROPHIC WIND
DAMAGE, AND FLOODING RAINFALL WILL IMPACT PORTIONS OF THE NORTHERN
GULF COAST BEGINNING LATER THIS MORNING...
SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
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LOCATION...28.0N 89.1W
ABOUT 75 MI...120 KM S OF THE MOUTH OF THE MISSISSIPPI RIVER
ABOUT 145 MI...235 KM SE OF HOUMA LOUISIANA
MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...946 MB...27.94 INCHES