Tropical Storm Debby loiters off Southeast US coast as major flood threat continues for portions of Carolinas

WILMINGTON, N.C.Tropical Storm Debby is expected to dump torrential rain along the Eastern Seaboard that could lead to catastrophic flooding, with rainfall amounts that could exceed 25 inches, the National Hurricane Center (NHC) warns.

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The tropical storm is expected to make a second landfall in South Carolina sometime overnight, packing strong winds with gusts of 40-65 mph along the upper South Carolina coast and up toward Cape Fear, North Carolina.

States of emergency have been declared in South Carolina, Georgia and North Carolina in anticipation of Debby.

LIVE TRACKER: DEBBY MAPS, FORECAST CONE, ALERTS

Three-hour radar loop. Warning boxes are color coded as: Severe Thunderstorm Warnings in yellow, Tornado Warnings in red, Tornado Warnings with a confirmed tornado in purple, Flash Flood Warnings in green and Flash Flood Emergencies in pink.
(FOX Weather)

 

After making landfall along Florida’s Big Bend on Monday morning as a Category 1 hurricane, Debby dumped more than 20 inches of rain, sent feet of storm surge flooding into Southwest Florida and knocked out power to more than 300,000 customers in the Sunshine State at the height of the storm. 

However, Debby is far from done.

Debby is currently off the South Carolina coast, where it’s expected to gain some juice and gradually re-strengthen over the next 24 hours. The disorganized nature of the storm and the fact that it will not move far enough east to encounter the warm Gulf Stream should only lead to limited intensification. 

NORTHEAST THREATENED: DEBBY’S MOISTURE SPREADS NORTH

Heavy rainfall across portions of eastern South Carolina and southeastern North Carolina is expected to persist through Thursday, broadening areas of considerable flooding, the NHC said. 

Starting Friday, the storm will finally get a kick north, and heavy rain will spread all the way into the Northeast, the FOX Forecast Center said. Pockets of significant flooding will be possible Friday and Saturday from the Carolinas all the way into Maine.

NOAA’s Weather Prediction Center has issued a Level 4 flood risk, the highest threat on its scale, for Wednesday and Thursday in parts of northeastern South Carolina and southeastern North Carolina. The risk will only slowly shift north each day as Debby slowly meanders near the U.S. East Coast.

NEXT STORM? DEVELOPMENT POSSIBLE IN CARIBBEAN, GULF

The potential for life-threatening flooding is due to the lack of forward motion with Debby that will keep sending repeated rounds of torrential rain toward the Southeast coast, the FOX Forecast Center said.

Tropical storm conditions will spread northward along the Southeast U.S. coast from South Carolina to North Carolina through Thursday. Tropical Storm Warnings and Watches are in effect for portions of that region.

A dangerous storm surge is possible along the coast of South Carolina and southeastern North Carolina from the South Santee River to Cape Fear, the NHC warns.

In addition to the flooding rainfall and tropical-storm-force winds, a few tornadoes are also expected across the Southeast this week.