More than 163,000 customers without power in Florida
More than 163,000 customers are without power in Florida, according to PowerOutage.us, which tracks energy outages.
Flash flooding is a threat for Florida, Georgia and South Carolina.
Debby is roaring across Florida and Georgia as a tropical storm after making landfall as a Category 1 hurricane Monday morning.
At least four people have been killed.
On Monday, Debby is bringing very heavy rain from Gainesville and Jacksonville, Florida, up to Savannah, Georgia, where more than 20 inches of rain is possible.
By Tuesday, Debby is expected to stall over the Southeast, bringing potentially historic rainfall to Georgia and South Carolina. Up to 30 inches of rain is possible through Thursday.
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More than 163,000 customers are without power in Florida, according to PowerOutage.us, which tracks energy outages.
A curfew will go into effect overnight for Charleston, South Carolina, due to Debby, city officials said Monday.
Thoroughfares leading into the peninsula will be closed from 11 p.m. ET Monday to noon ET Tuesday, the city said, as the region braces for potential impacts such as tropical storm-force winds, heavy rain and isolated tornadoes.
"We urge everybody to stay inside, stay indoors and do not travel," Charleston Mayor William Cogswell said at a press briefing Monday evening.
President Joe Biden has approved a request from South Carolina Gov. Henry McMaster for an emergency declaration in the state due to Debby, the White House said.
The declaration allows the Federal Emergency Management Agency to mobilize and provide equipment and resources necessary.
"The President continues to urge residents to remain vigilant and heed the warnings of State and local officials," the White House said in a statement.
-ABC News' Cheyenne Haslett
North Carolina Gov. Roy Cooper declared a state of emergency ahead of severe weather, including life-threatening flash flooding, expected across the state due to Debby.
"This weather has the potential to bring intense rain and flooding to North Carolina and we are preparing for it," Cooper said in a statement. "As the weather becomes more severe, I urge everyone to take precautions and stay safe."
The emergency declaration will allow for the state to mobilize resources to respond to the storm.