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Tropical Storm Claudette Intermediate Advisory Number 8A
NWS National Hurricane Center Miami FL AL032021
100 PM CDT Sat Jun 19 2021
...BANDS OF HEAVY RAIN AND GUSTY WINDS STILL AFFECTING PORTIONS OF
THE NORTHERN GULF COAST...
SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION
ABOUT 80 MI...130 KM NNW OF MOBILE ALABAMA
ABOUT 140 MI...225 KM WSW OF MONTGOMERY ALABAMA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NNE OR 30 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The Tropical Storm Warning from the Mississippi/Alabama border
to the Mouth of the Mississippi River has been discontinued.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Mississippi/Alabama border to the Okaloosa/Walton County line
A Tropical Storm Watch is in effect for...
* Cape Fear to Duck, North Carolina
* Pamlico and Albemarle Sounds
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
Interests elsewhere along the northern Gulf Coast and across the
southeast U.S. should monitor the progress of this system.
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
DISCUSSION AND OUTLOOK
At 100 PM CDT (1800 UTC), the center of Tropical Storm Claudette was
located near latitude 31.8 North, longitude 88.6 West. Claudette is
moving toward the north-northeast near 14 mph (22 km/h). A turn
toward the northeast is expected later today, followed by a motion
toward the east-northeast tonight or Sunday. On the forecast track,
the system should move farther inland across portions of the
southeast U.S. through Sunday night, and over the western Atlantic
Ocean on Monday.
Maximum sustained winds are near 40 mph (65 km/h) with higher
gusts. Claudette is expected to weaken to a tropical depression
later today, however, Claudette is forecast to become a tropical
storm again when it moves across the Carolinas Sunday night or
Tropical-storm-force winds extend outward up to 205 miles (335 km)
southeast of the center.
The estimated minimum central pressure based on surface
observations is 1007 mb (29.74 inches).
HAZARDS AFFECTING LAND
Key messages for Claudette can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC,
and on the web at
RAINFALL: Claudette is expected to produce rainfall totals of 5 to
10 inches with isolated maximum amounts of 15 inches across portions
of coastal Mississippi and Alabama, and the western Florida
Panhandle through the afternoon. Considerable flash, urban and
small stream flooding impacts as well as new and renewed minor to
isolated moderate river flooding are likely across these areas.
As the system continues to lift northeast through the weekend, heavy
rain will occur across central Alabama, central and northern
Georgia, and into the Piedmont of the Carolinas, resulting in
rainfall totals of 3 to 6 inches with isolated maximum amounts of 8
inches. Flash, urban, small stream and isolated minor river
flooding impacts are possible.
STORM SURGE: The combination of storm surge and the tide will
cause normally dry areas near the coast to be flooded by rising
waters moving inland from the shoreline. The water could reach the
following heights above ground somewhere in the indicated areas if
the peak surge occurs at the time of high tide...
MS/AL Border to Okaloosa/Walton County Line, FL...2-3 ft
Mobile Bay...2-3 ft
Okaloosa/Walton County Line, FL to Panama City, FL...1-2 ft
Pensacola Bay, Choctawhatchee Bay, Saint Andrew Bay...1-2 ft
Cape Lookout, NC to NC/VA Border...1-3 ft
Surge-related flooding depends on the relative timing of the surge
and the tidal cycle, and can vary greatly over short distances. For
information specific to your area, please see products issued by
your local National Weather Service forecast office.
WIND: Tropical storm conditions should continue along the coast in
the warning area for a couple of more hours. Tropical storm
conditions are possible in the watch area Sunday night and Monday.
TORNADOES: A few tornadoes are possible today and tonight across
southeast Alabama, the western Florida Panhandle, and southwest
Next complete advisory at 400 PM CDT.