Flash floods hit Charleston, South Carolina on September 7, 2025, after thunderstorms dropped heavy rainfall on already saturated ground. Up to 30 cm (12 inches) of standing water was reported in parts of downtown Charleston, with traffic and power disruptions affecting the city.
Charleston broke a daily rainfall record as a stalled cold front over the southeastern United States dropped up to 300 mm (12 inches) rain in Charleston County, on Friday, August 22, 2025. The system also affected parts of southeastern Georgia, prompting Level 2 of 4 flash flood risk alerts from the Weather Prediction Center, with rainfall rates exceeding 75 mm (3 inches) per hour and localized accumulations up to 150 mm (6 inches) expected through Sunday, August 24.
Significant flooding was reported in Downtown Charleston on July 22, 2025, along with salt water flooding that affected Charleston and Colleton County. A potentially fatal multi-vehicle collision was reported along the southbound I-95, prompting the closure of the route through July 22.
A plume of moisture from Hurricane “Rafael” moved northward into the Southeastern United States and collided with a stationary front over South Carolina, causing intense rainfall in Orangeburg County on November 6 and 7, 2024. The extreme rainfall, totaling 180 – 380 mm (7 – 15 inches) in 24 hours, overwhelmed local ponds and dams, leading to failures that sent water downstream, damaging bridges and roads near Norway, South Carolina.
Heavy rains and flooding struck the Carolinas on December 17, 2023, as a powerful storm system moved up the East Coast, causing record rainfall in Charleston and significant flooding along the South Carolina coast.
After causing major flooding in downtown Charleston, South Carolina, a slow-moving storm caused widespread flash flooding in the Raleigh, North Carolina, metro area early Tuesday, April 25, 2017. On Monday, the rains already flooded numerous roads, caused dozens of…
