Current Snapshot

The Pacific Disaster Center’s (PDC Global) Wednesday, August 7, 2024, Tropical Cyclone Activity Report for the Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico

CURRENT TROPICAL CYCLONES:

Tropical Cyclone 04L (Debby)…is located about 65 miles south-southwest of Myrtle Beach, SC…according to the NHC Advisory number 23

Tropical Cyclone 04L (Debby)

CENTER OF DEBBY ABOUT TO CROSS THE COAST OF SOUTH CAROLINA…MAJOR FLOOD THREAT CONTINUES FOR PORTIONS OF THE CAROLINA’S

Debby is moving toward the north-northwest near 3 mph (6 km/h). This general motion is expected to continue through Thursday, bringing the center across the South Carolina coast during the next several hours. A faster motion toward the north and north-northeast across the Carolina’s and the U.S. Mid-Atlantic states is expected later on Thursday and on Friday.

Maximum sustained winds are near 60 mph (95 km/h) with higher gusts.
Weakening is forecast to begin on Thursday after the center moves inland. Debby is expected to merge with a frontal boundary over the
U.S. Mid-Atlantic states on Friday or Friday night.

Tropical-storm-force winds extend outward up to 185 miles (295 km) mainly to the east of the center. NOAA buoy 41013 near Frying Pan Shoals, North Carolina, recently reported sustained winds of 38
mph (61 km/h) and a wind gust of 45 mph (72 km/h).

HAZARDS AFFECTING LAND

WINDS: Tropical storm conditions are expected to continue along the coast of South Carolina within the tropical storm warning area through Thursday. Tropical storm conditions are expected within the tropical storm warning area and possible within the tropical storm watch area in North Carolina tonight through Thursday.

STORM SURGE: The combination of storm surge and 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…

South Santee River to Ocracoke Inlet including the Neuse and Pamlico Rivers…1 to 3 feet

RAINFALL: Debby is expected to produce an additional 3 to 9 inches of rainfall with locally higher amounts, leading to maximum storm total amounts as high as 25 inches in eastern South Carolina and 15 inches in southeast North Carolina with considerable flooding expected across portions of eastern South Carolina and southeast North Carolina through Friday.

An additional 1 to 2 inches of rainfall with locally higher amounts
is possible across southeast Georgia through Thursday, bringing overall storm total amounts as high as 15 inches, which may aggravate any ongoing flooding conditions.

From the Piedmont of South Carolina northward across portions of Virginia, 3 to 7 inches with local amounts to 10 inches, are expected through Friday. This rainfall will likely result in areas of considerable flash and urban flooding, with river flooding possible.

From Maryland north through Upstate New York and Vermont, 2 to 4
inches, with local amounts to 6 inches, are expected through Saturday morning. This will likely produce considerable flash and urban flooding as well as river flooding.

For Long Island and the remainder of New England, 1 to 2 inches, with local amounts to 4 inches, are expected into Saturday. Scattered instances of flash flooding are possible.

TORNADOES: A few tornadoes may occur over parts of eastern North Carolina overnight. The risk of tornadoes will shift northward on Thursday into central North Carolina and central Virginia.

SURF: Large swells will continue to affect the Southeast U.S. coast through the end of the week. These conditions are likely to cause life-threatening surf and rip current conditions.