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NWS Charleston SCFF.W 0021October 4, 2026

Flash Flood Warning: Charleston, SC

The National Weather Service office in Charleston issued a flash flood warning for Charleston in South Carolina, which was in force until 1:00 a.m. local time on October 5. It was the 21st flash flood warning the NWS office in Charleston issued in 2026. South Carolina had 3 flash flood warnings in October 2026, against 4 in an average October of 2008-2025 (South Carolina's flash flood warnings by year).

ExpiredWarning

Issued11:49 p.m. EDT, October 4, 2026
In force11:49 p.m. EDT, October 4, 2026
Expired1:00 a.m. EDT, October 5, 2026

In force for 1.2 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Charleston SC
Area
Charleston
State
South Carolina
Level
Warning
Issued
11:49 p.m. EDT, October 4, 2026
Expires
1:00 a.m. EDT, October 5, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KCHS FF.W 0021
Official source
National Weather Service: the notice at its source

Flash Flood Warnings in South Carolina since 2008Every warning type in South Carolina

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

FFWCHS The National Weather Service in Charleston has extended the * Flash Flood Warning for... Charleston County in southeastern South Carolina... * Until 100 AM EDT. * At 1149 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Mount Pleasant, Isle Of Palms, Awendaw, Price Inlet, Capers Inlet, Bull Island, Capers Island, Dewees Island and Whitehall Terrace. This includes the following streams and drainages... Capers Island, Bulls Bay, Wando River, Dewees Island, US-17 Charleston National, Mt Pleasant Airport and Bull Island.

What the agency told people to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.

The record around this notice