000
WTNT34 KNHC 080852
TCPAT4
BULLETIN
Tropical Storm Debby Advisory Number 24
NWS National Hurricane Center Miami FL AL042024
500 AM EDT Thu Aug 08 2024
...DEBBY'S CENTER CREEPING INLAND OVER SOUTH CAROLINA...
...MAJOR FLOOD THREAT CONTINUES FOR PORTIONS OF THE CAROLINAS ANDWESTERN VIRGINIA...
SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION
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LOCATION...33.2N 79.7WABOUT 30 MI...50 KM NNE OF CHARLESTON SOUTH CAROLINAABOUT 60 MI...95 KM SW OF MYRTLE BEACH SOUTH CAROLINAMAXIMUM SUSTAINED WINDS...50 MPH...85 KM/HPRESENT MOVEMENT...NW OR 325 DEGREES AT 5 MPH...7 KM/HMINIMUM CENTRAL PRESSURE...994 MB...29.36 INCHES
WATCHES AND WARNINGS
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CHANGES WITH THIS ADVISORY:
A Tropical Storm Warning has been issued for the coast of NorthCarolina east of Surf City to Ocraco*ke Inlet.
The Tropical Storm Warning has been discontinued south of SouthSantee River, South Carolina.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...* North of South Santee River, South Carolina to Ocraco*ke Inlet,North Carolina
A Tropical Storm Warning means that tropical storm conditions areexpected somewhere within the warning area, in this case during thenext 12 hours.
For storm information specific to your area, including possibleinland watches and warnings, please monitor products issued by yourlocal National Weather Service forecast office.
DISCUSSION AND OUTLOOK
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At 500 AM EDT (0900 UTC), the center of Tropical Storm Debby waslocated inland over South Carolina near latitude 33.2 North,longitude 79.7 West. Debby is moving toward the northwest near 5mph (7 km/h) but is expected to accelerate toward thenorth-northwest and north across eastern South Carolina and centralNorth Carolina through tonight. Debby is then expected to movefaster toward the northeast across the U.S. Mid-Atlantic andNortheast on Friday and Atlantic Canada on Saturday.
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.Weakening is forecast during the next day or so, and Debby islikely to become a tropical depression by this afternoon orevening. Debby should then merge with a front and becomeextratropical on Friday.
Tropical-storm-force winds extend outward up to 185 miles (295 km)to the east of the center. A sustained wind of 36 mph (57 km/h) and a gust to 39 mph (63 km/h) was recently reported at Cape Lookout, North Carolina.
The estimated minimum central pressure is 994 mb (29.36 inches).
HAZARDS AFFECTING LAND
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Key messages for Debby can be found in the Tropical CycloneDiscussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.
WIND: Tropical storm conditions are expected to continue along thecoasts of South Carolina and North Carolina within the tropicalstorm warning area through today.
STORM SURGE: The combination of storm surge and tide will causenormally dry areas near the coast to be flooded by rising watersmoving inland from the shoreline. The water could reach thefollowing heights above ground somewhere in the indicated areas ifthe peak surge occurs at the time of high tide...
South Santee River to Ocraco*ke Inlet including the Neuse andPamlico Rivers...1 to 3 ft
For a complete depiction of areas at risk of storm surge inundation,please see the National Weather Service Peak Storm Surge Graphic,available at hurricanes.gov/graphics_at4.shtml?peakSurge.
RAINFALL: Debby is expected to produce an additional 3 to 6 inchesof rainfall with locally higher amounts, across portions ofsoutheastern North Carolina leading to maximum storm total amountsas high as 15 inches. Additional rainfall of 1 to 3 inches overportions of eastern South Carolina will bring maximum storm totalamounts as high as 20 to 25 inches. Considerable flooding isexpected across portions of eastern South Carolina and southeastNorth Carolina through Friday.
From central North Carolina northward across portions of Virginia, 3to 7 inches with local amounts to 10 inches, are expected throughFriday. This rainfall will likely result in areas of considerableflash and urban flooding, with river flooding possible.
From portions of Maryland north through Upstate New York andVermont, 2 to 4 inches, with local amounts to 6 inches, are expectedthrough Friday night. This will likely result in areas ofconsiderable flash and urban flooding as well as river flooding.
For a complete depiction of forecast rainfall and flash floodingassociated with Debby, please see the National Weather ServiceStorm Total Rainfall Graphic, available athurricanes.gov/graphics_at4.shtml?rainqpf and the Flash Flood Riskgraphic at hurricanes.gov/graphics_at4.shtml?ero. For a list ofrainfall observations (and wind reports) associated this storm, seethe companion storm summary at WBCSCCNS4 with the WMO header ACUS44KWBC or at the following link:www.wpc.ncep.noaa.gov/discussions/nfdscc4.html.
TORNADOES: A few tornadoes may occur over parts of eastern NorthCarolina this morning. The tornado threat will shift northwardtoday into central North Carolina and southern to central Virginia.
SURF: Large swells will continue to affect the Southeast U.S.coast through the end of the week. These conditions are likely tocause life-threatening surf and rip current conditions. Pleaseconsult products from your local weather office.
NEXT ADVISORY
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Next intermediate advisory at 800 AM EDT.Next complete advisory at 1100 AM EDT.
$$Forecaster Berg
