Notice
Charleston, SC
September 25, 2024
Notices
CHANGES HIGH LIGHTED IN YELLOW
ZULU – PORT IS CLOSED – AT 25/2000 TAMPA/PORT MANATEE – AT 26/0001 JACKSONVILLE/PORT CANAVERAL
YANKEE – NO INCOMING VESSELS, VESSELS IN PORT MUST BE PREPARED TO DEPART – CLOSURE WITHIN 24 HOURS. - TAMPA/PORT MANATEE/SAVANNAH/ PORT CANAVERAL/JACKSONVILLE
X-RAY – NO SE PORTS
SEASONAL 4 - MIA/PORT EVERGLADES/CHARLESTON/WILMINGTON
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Hurricane Helene Advisory Number 10
NWS National Hurricane Center Miami FL AL092024
400 PM CDT Wed Sep 25 2024
...HELENE STRENGTHENING......PREPARATIONS TO PROTECT LIFE AND PROPERTY FROM STORM SURGE AND DAMAGING WINDS ALONG THE FLORIDA BIG BEND COAST SHOULD BE RUSHED TO COMPLETION TODAY...
SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
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LOCATION...22.5N 86.6W
ABOUT 460 MI...735 KM SW OF TAMPA FLORIDA
ABOUT 505 MI...815 KM SSW OF APALACHICOLA FLORIDA
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...N OR 355 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...978 MB...28.88 INCHES
WATCHES AND WARNINGS
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CHANGES WITH THIS ADVISORY:
The Storm Surge Watch east of Mexico Beach to Indian Pass has been upgraded to a Storm Surge Warning.
The Tropical Storm Watch north of South Santee River to Little River Inlet has been upgraded to a Tropical Storm Warning.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Warning is in effect for...
* Mexico Beach eastward and southward to Flamingo
* Tampa Bay
* Charlotte Harbor
A Hurricane Warning is in effect for...
* Anclote River to Mexico Beach
* Cabo Catoche to Tulum, Mexico including Cozumel
A Storm Surge Watch is in effect for...
* West of Indian Pass to Mexico Beach
A Hurricane Watch is in effect for...
* Cuban province of Pinar del Rio
* Englewood to Anclote River, including Tampa Bay
A Tropical Storm Warning is in effect for...
* Florida Keys, including the Dry Tortugas
* Flamingo to Anclote River, including Tampa Bay
* West of Mexico Beach to the Okaloosa/Walton County Line
* Flamingo northward to Little River Inlet
* Lake Okeechobee
* Rio Lagartos to Cabo Catoche, Mexico
* Cuban provinces of Artemisa, Pinar del Rio, and the Isle of Youth
DISCUSSION AND OUTLOOK
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At 400 PM CDT (2100 UTC), the center of Hurricane Helene was located near latitude 22.5 North, longitude 86.6 West. Helene is moving toward the north near 12 mph (19 km/h). A northward or north-northeastward motion at a faster forward speed is expected during the next 36 hours. On the forecast track, Helene will move across the eastern Gulf of Mexico tonight and Thursday and cross the Florida Big Bend coast Thursday evening. After landfall, Helene is expected to turn northwestward and slow down over the Tennessee Valley on Friday and Saturday.
Maximum sustained winds are near 85 mph (140 km/h) with higher gusts. Strengthening is forecast, and Helene is expected to be a major hurricane when it reaches the Florida Big Bend coast Thursday evening. Weakening is expected after landfall, but Helene's fast forward speed will allow strong, damaging winds, especially in gusts, to penetrate well inland across the southeastern United States, including over the higher terrain of the southern Appalachians.
Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 345 miles (555 km).
The estimated minimum central pressure is 978 mb (28.88 inches).
NEXT ADVISORY – FROM MORAN SHIPPING – 25/1100
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Next intermediate advisory at 700 PM CDT.
Next complete advisory at 1000 PM CDT.
