Home / States / South Carolina
Dorchester County, South Carolina
Tornadoes, hail, floods and severe storms recorded here between 1955 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
22
Tornado reports
185
Hail reports
74
Floods since 1996
957
All events
1
Deaths
$11.9M
Property damage
Tornado paths in Dorchester County
The part of each tornado’s path NOAA recorded in this county, 22 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
Storm total snowfall across Dorchester County ranged from around 3 inches in the northern end, to as much as 6 to 7 inches in the southern end near Summerville and North Charleston. The precipitation started off as rain and then transitioned to a period of freezing rain. During t…
Law enforcement, media and social media posts indicated widespread flooding around Summerville and Wescott Plantation. Roads closed included Orangeburg Road at the intersection of Greenwave Boulevard, Ashley River Road at the intersection of Bacons Bridge Road and Wescott Bouleva…
An emergency manager for Dorchester County reported widespread flooding around Summerville, Ladson and Wescott Plantation. Widespread road closures, damage to homes and water rescues were made. Roads closed due to flooding included the 100 and 300 block of Dorchester Manor Boulev…
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported power lines down at the 3000 Block of McAlhany Road.
Lightning Lightning
Dorchester County Emergency Management reported a house struck by lightning and smoking in the 100 Block of Curico Lane.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported power lines down near the intersection of West 5th North Street and North Maple Street.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a tree down at Highway 61 and Tuggle Road.
Thunderstorm Wind Thunderstorm Wind
Emergency management reported a tree down on Campbell Road near Highway 61.
Thunderstorm Wind Thunderstorm Wind
Emergency management reported a tree on power lines with power outages at the 9500 Block of Dorchester Road and a tree down near the intersection of Appian Way and Lynn Haven Court.
Thunderstorm Wind Thunderstorm Wind
Broadcast media reported a large tree down on the roof of a home on Parish Parc Drive.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
The local criteria for an Extreme Cold Warning is temperature or wind chill of 10 degrees or less. A wind chill temperature of 10 degrees or less was ongoing at the Summerville Airport (KDYB) and at the Summerville mesonet site at 12 AM EST. The wind chill temperature first fell …
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
The local criteria for an Extreme Cold Warning is temperature or wind chill of 10 degrees or less. The wind chill temperature first fell below 10 degrees at the Summerville Airport (KDYB) at 21:15 EST and the Summerville mesonet site at 22:30 EST.
Heavy Snow Heavy Snow
Widespread snow impacted Dorchester County. Snowfall accumulations ranged up to 2 inches including 2 inches in Summerville and 2 inches in the Saint George area.
Winter Weather Winter Weather
Light freezing rain and freezing drizzle produced a light glaze of ice, mostly on elevated and exposed surfaces across the county. The light glaze of ice did produce a slippery stretch of roadway on Interstate 26 between mile marker 181 and 182 where an overturned vehicle was rep…
Flash Flood Flash Flood
Dorchester County Emergency Management reported the intersection of Congressional Boulevard and Butterfield Road flooded and not passable.
Flash Flood Flash Flood
Dorchester County Emergency Management reported the 300 Block of Woodward Boulevard flooded and impassable.
Flash Flood Flash Flood
Emergency management reported roadways impassable around 1000 Anne Revenge Run in Summerville, South Carolina. Water was also reported to be approaching the porches of some homes.
Flash Flood Flash Flood
Emergency management reported the Dorchester Fire Department Station 10 had floodwaters in the living quarters.
Flash Flood Flash Flood
Dorchester County Emergency Management relayed images showing water entering the bottom floors of several homes along Boon Hill Road.
Flash Flood Flash Flood
Dorchester County Emergency Management reported the intersection of Orangeburg Road and Highway 17A impassible due to flooding.
Thunderstorm Wind Thunderstorm Wind
Emergency management reported a tree down near the intersection of Beach Hill Road and Windward Drive.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a tree down at the intersection of Orangeburg Road and Old Parsonage Road.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a tree down at the traffic circle along Orangeburg Road and W Butternut Road.
Lightning Lightning
Dorchester County Emergency Management reported that a lightning strike started a structure fire in the 100 block of Hammock Street.
Lightning Lightning
Dorchester County Emergency Management reported that lightning struck a structure and started a fire in the 1000 block of Lovebug Lane.
Dorchester County Emergency Management reported a tree fell on a vehicle near the 700 block of Highway 61, causing a minor injury.
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported multiple trees down across downtown Summerville.
Thunderstorm Wind Thunderstorm Wind
A trained spotter reported a fascia blown off at the roof line of a house.
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down on a vehicle on Highway 15 North near Duncan Chapel Road.
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down in the 1700 Block of Highway 15.
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down along Charleston Highway near Shannon Loop.
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down on a power line in the 100 Block of Pendarvis Circle.
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down on a power line along the 1900 Block of Summers Drive.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a power line down in the 100 block of Blythe Avenue off of Bacons Bridge Road.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a large oak tree down on power lines near the intersection of Maple Branch Road at Twins Lane.
Dorchester County Emergency Management reported that two trees fell across Seven Acres Road near Highway 15. Two trucks then hit the downed trees, causing one injury.
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported one tree down near the intersection of Wire Road and Murray Cemetary Road.
Hail Hail
Dorchester County Emergency Management reported penny sized hail near Seven Acres Road and Highway 15.
Winter Storm Winter Storm
A rare winter storm produced significant accumulations of snow and sleet across Dorchester County. Storm total snow/sleet accumulations of 3.0-4.5 inches were observed across the county. The highest totals were generally found in the northern portion of the county where more of t…
Light amounts of sleet and freezing rain impacted much of Dorchester County. Measured amounts ranged from trace accumulations of freezing rain on roads, bridges, cars, trees, and untreated surfaces to two tenths of an inch of sleet near the intersection of Highway 78 and Highway …
Tropical Storm Tropical Storm
Dorchester County Emergency Management reported that strong winds associated with Helene produced widespread tree damage and power lines across the entire county. The peak wind gust measured in the county was 51 mph at the Summerville Airport (KDYB).
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported and few large branches and 1 tree down blocking the roadway in the 200 Block of Salem Road.
Flash Flood Flash Flood
A Dorchester County emergency manager shared a picture of paved Wire Road washed out near the intersection with Zion Road.
Flash Flood Flash Flood
A Dorchester County emergency manager shared a picture of a washout along the paved 695 Block of Powder Horn Road.
Flash Flood Flash Flood
A Dorchester County emergency manager reported paved roadway damage on Summers Drive between Highway 17A and Victoria Point Lane. A small bridge in between these locations was also starting to crumble at this time.
Flash Flood Flash Flood
A Dorchester County emergency manager and media reported at least 75 roads closed due to flooding across Dorchester County this morning. A slightly larger amount of road closures were near Harleyville, Summerville and along the Edisto River.
Flash Flood Flash Flood
A Dorchester County emergency manager relayed an image of water moving over Salem Road where it intersects with Halfway Gut Creek.
Flash Flood Flash Flood
A Dorchester County emergency manager reported a water rescue in progress on Magwood Drive. Another resident on the 9000 Block of Dorchester Road requested assistance. In addition, a guardrail along Dorchester Road was washed out with water along the road bankfull.
Flash Flood Flash Flood
Dorchester County Emergency Management reported that the Department of Transportation was shutting down Delmar Highway at Ashley Ridge High School because floodwaters were washing the roadway away.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 11 | 0 |
| 2025 | 26 | 0 |
| 2024 | 47 | 0 |
| 2023 | 22 | 0 |
| 2022 | 43 | 1 |
| 2021 | 12 | 0 |
| 2020 | 38 | 2 |
| 2019 | 39 | 0 |
| 2018 | 32 | 0 |
| 2017 | 25 | 1 |
| 2016 | 40 | 0 |
| 2015 | 27 | 0 |
| 2014 | 23 | 0 |
| 2013 | 38 | 2 |
| 2012 | 38 | 0 |
| 2011 | 51 | 0 |
| 2010 | 38 | 0 |
| 2009 | 40 | 0 |
| 2008 | 58 | 1 |
| 2007 | 22 | 0 |
| 2006 | 55 | 2 |
| 2005 | 10 | 0 |
| 2004 | 16 | 1 |
| 2003 | 19 | 1 |
| 2002 | 20 | 2 |
| 2001 | 11 | 0 |
| 2000 | 19 | 0 |
| 1999 | 14 | 0 |
| 1998 | 22 | 2 |
| 1997 | 13 | 1 |
| 1996 | 14 | 0 |
| 1995 | 16 | 0 |
| 1994 | 6 | 0 |
| 1993 | 2 | 0 |
| 1992 | 2 | 0 |
| 1991 | 3 | 0 |
| 1990 | 7 | 0 |
| 1989 | 7 | 0 |
| 1988 | 5 | 0 |
| 1986 | 2 | 0 |
| 1985 | 3 | 0 |
| 1984 | 2 | 0 |
| 1983 | 4 | 1 |
| 1980 | 1 | 0 |
| 1978 | 2 | 0 |
| 1977 | 2 | 0 |
| 1976 | 3 | 2 |
| 1974 | 2 | 1 |
| 1966 | 1 | 1 |
| 1963 | 1 | 0 |
| 1960 | 1 | 0 |
| 1958 | 1 | 1 |
| 1955 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Dorchester County, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.