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Tropical Depression Claudette Intermediate Advisory Number 11A
NWS National Hurricane Center Miami FL AL032021
700 AM CDT Sun Jun 20 2021
...CLAUDETTE STILL PRODUCING HEAVY RAINS WITH POSSIBLE FLASH
FLOODS OVER MUCH OF THE SOUTHEASTERN UNITED STATES...
SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
ABOUT 25 MI...35 KM W OF ATLANTA GEORGIA
ABOUT 390 MI...630 KM W OF CAPE FEAR NORTH CAROLINA
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...ENE OR 60 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Little River Inlet to Duck, North Carolina
* Pamlico and Albemarle Sounds
A Tropical Storm Watch is in effect for...
* South Santee River, South Carolina to Little River Inlet
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within
24 to 36 hours.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, in this case within the next 24 to
Interests elsewhere across the Carolinas 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 700 AM CDT (1200 UTC), the center of Tropical Depression
Claudette was located near latitude 33.7 North, longitude 84.8 West.
The depression is moving toward the east-northeast near 13 mph (20
km/h). On the forecast track, the system should cross portions of
the southeast U.S. through tonight, move over the coast of North
Carolina into the western Atlantic Ocean on Monday, and be located
south of Nova Scotia by late Tuesday.
Maximum sustained winds remain near 30 mph (45 km/h) with higher
gusts. Some re-strengthening is expected tonight, and Claudette is
forecast to become a tropical storm again on Monday over eastern
North Carolina. Further strengthening is possible over the western
Atlantic Ocean through early Tuesday. Claudette is expected to
become a post-tropical cyclone by late Tuesday.
The estimated minimum central pressure from 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 additional rainfall
totals of 1 to 3 inches with isolated maximum amounts of 6 inches
across Alabama, the Florida Panhandle, northern and central Georgia,
and Upstate South Carolina through the morning hours. As the system
tracks north and east, bands of heavy rain will occur across
portions of central and southern Georgia, central and coastal South
Carolina into eastern North Carolina through Monday morning
resulting in rainfall totals of 2 to 4 inches with isolated maximum
amounts of 8 inches. Considerable flash, urban and small stream
flooding impacts, as well as new and renewed minor to isolated
moderate river flooding are possible across these areas.
Storm total rainfall of 5 to 10 inches with isolated 15 inch amounts
was observed in southeast Louisiana, southern Mississippi, southern
Alabama, and the western Florida panhandle.
For the latest rainfall reports and wind gusts associated with
Claudette, see the companion storm summary at WBCSCCNS3 with the
WMO header ACUS43 KWBC or at the following link:
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...
NC/VA Border to Cape Lookout, NC...1-3 ft
Cape Lookout, NC to Little River Inlet, SC...1-2 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 are expected to begin in the
warning area late tonight or early Monday. Tropical storm
conditions are possible in the watch area tonight and Monday.
TORNADOES: A few tornadoes are possible today across parts of
Georgia and the Carolinas.
Next complete advisory at 1000 AM CDT.