South Carolina, 2025Flash Flooding and Flood in South Carolina, August 23, 2025
August 23, 2025 · NWS CHS · 14 events in 2 counties and zones
Mid-level energy tracking across the region along with a deep moisture and modest instability residing near a stalled front led to an environment supportive of heavy rainfall across Southeast South Carolina.
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 14
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Mid-level energy tracking across the region along with a deep moisture and modest instability residing near a stalled front led to an environment supportive of heavy rainfall across Southeast South Carolina.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before the first event at Aug 23, 6:41 AM EST, 15 minutes earlier.
Area forecast discussion, Aug 23, 6:41 AM EST, 15 minutes before
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Local storm report, Aug 23, 5:27 AM EST, 1 hour 29 minutes before
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</html>Flash Flood, Charleston
- When
- August 23, 6:56 AM EST to 7:26 AM EST
- Where
- Charleston County, 0.13 mi ESE of Citadel to 0.03 mi E of Citadel
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.799, -79.948
Law enforcement reported the intersection of King Street and Huger Street closed due to high water.
Flash Flood, Charleston
- When
- August 23, 7:03 AM EST to 7:33 AM EST
- Where
- Charleston County, 0.86 mi WNW of Charleston to 0.89 mi WNW of Charleston
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.785, -79.944
Law enforcement reported the intersection of Ogier Street and Calhoun Street closed due to flooding.
Flash Flood, Charleston
- When
- August 23, 7:25 AM EST to 7:55 AM EST
- Where
- Charleston County, 0.54 mi SSW of Citadel to 0.6 mi SW of Citadel
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.793, -79.954
Law enforcement reported Hagood Avenue and Fishburne Street closed due to high water.
Flash Flood, Charleston
- When
- August 23, 7:32 AM EST to 7:52 AM EST
- Where
- Charleston County, 0.52 mi NNE of Citadel to 0.56 mi NNE of Citadel
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.807, -79.947
Law enforcement reported the intersection of North Nassau Street and Romney Street closed due to flooding.
Flash Flood, Charleston
- When
- August 23, 7:45 AM EST to 8:15 AM EST
- Where
- Charleston County, 0.94 mi WNW of Charleston to 0.8 mi WNW of Charleston
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.784, -79.945
Law enforcement reported Ashley Avenue closed between Calhoun Street and Bull Street due to rainfall around high tide.
Flash Flood, Charleston
- When
- August 23, 8:09 AM EST to 8:39 AM EST
- Where
- Charleston County, 1.22 mi ENE of Croghan to 0.98 mi W of Charleston
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.779, -79.952
Law enforcement reported the intersection of Lockwood Drive and Broad Street closed due to flooding.
Flash Flood, Charleston
- When
- August 23, 8:10 AM EST to 8:40 AM EST
- Where
- Charleston County, 0.63 mi NNE of Citadel to 0.67 mi NE of Citadel
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.808, -79.944
Law enforcement reported the intersection of Morrison Drive and Romney Street closed due to flooding.
Flash Flood, Charleston
- When
- August 23, 8:10 AM EST to 8:40 AM EST
- Where
- Charleston County, 0.47 mi S of Citadel to 0.49 mi S of Citadel
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.793, -79.950
Law enforcement reported the intersection of Ashley Avenue and Fishburne Street closed due to rainfall around high tide.
Flash Flood, Charleston
- When
- August 23, 8:11 AM EST to 8:41 AM EST
- Where
- Charleston County, 0.97 mi W of Charleston to 0.98 mi W of Charleston
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.778, -79.947
Law enforcement reported the intersection of Barre Street and Montagu Street closed due to rainfall around high tide.
Flash Flood, Charleston
- When
- August 23, 8:12 AM EST to 8:42 AM EST
- Where
- Charleston County, 0.81 mi NW of Citadel to 0.79 mi NW of Citadel
- Cause
- Heavy Rain
- Reported by
- NWS Employee
- Coordinates
- 32.809, -79.959
A National Weather Service employee reported the intersection of Peachtree Street and Hester Street closed due to rainfall around high tide.
Flash Flood, Charleston
- When
- August 23, 8:30 AM EST to 9:00 AM EST
- Where
- Charleston County, 0.61 mi NW of Citadel to 0.69 mi NNW of Citadel
- Cause
- Heavy Rain
- Reported by
- NWS Employee
- Coordinates
- 32.807, -79.957
A National Weather Service employee reported the intersection of Maple Street and Ashley Avenue flooded due to rainfall around high tide.
Flash Flood, Charleston
- When
- August 23, 8:53 AM EST to 9:23 AM EST
- Where
- Charleston County, 3.11 mi SE of Morris Acres to 3.23 mi SE of Morris Acres
- Cause
- Heavy Rain
- Reported by
- Trained Spotter
- Coordinates
- 32.720, -80.060
A trained weather spotter reported Walter Drive was flooded and impassable.
Flood, Colleton
- When
- August 23, 8:59 AM EST to 9:19 AM EST
- Where
- Colleton County, 1.39 mi NE of Edisto Beach to 1.38 mi NE of Edisto Beach
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 32.495, -80.314
A Colleton County emergency manager reported a septic tank out of the ground along Jungle Road due to heavy rainfall in the area.
Flash Flood, Charleston
- When
- August 23, 11:51 AM EST to 12:21 PM EST
- Where
- Charleston County, 3.87 mi SSW of Morris Acres to 3.72 mi SSW of Morris Acres
- Cause
- Heavy Rain
- Reported by
- Law Enforcement
- Coordinates
- 32.700, -80.130
Law enforcement reported a portion of Bears Bluff Road washed away near the split with Maybank Highway due to flowing water across the road.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
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NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1293400, 1293404, 1293398, 1293411, 1293414, 1293413, 1293401, 1293417, 1293421, 1293422, 1293410, 1293405, 1293423, 1293412.