Dorchester storm history
Storm events recorded in Dorchester, South Carolina between 1950 and 2025.
944
Total events
21
Tornadoes
185
Hail
74
Floods
1
Deaths
$11.8M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
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…
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.
Tropical Storm Tropical Storm
Dorchester County Emergency Management reported 9 trees down across Dorchester County, most notably near Givhans.
Thunderstorm Wind Thunderstorm Wind
South Carolina Highway Patrol reported a tree down on Stephanie Circle.
Hail Hail
A mPING report of 2 inch hail was received by the public.
Hail Hail
The public reported ping pong ball size hail near Beech Hill Elementary.
Hail Hail
A NWS employee reported golf ball size hail.
Hail Hail
The public reported golf ball size hail along Ladson Road.
Hail Hail
A spotter reported quarter size hail and gusty winds.
Hail Hail
A Dorchester County emergency manager reported hail up to the size of golf balls.
Thunderstorm Wind Thunderstorm Wind
The public reported trees down along Legend Oaks Way.
Thunderstorm Wind Thunderstorm Wind
The public reported trees down along Charlie Lane.
Thunderstorm Wind Thunderstorm Wind
A National Weather Service Storm Survey Team confirmed straight-line thunderstorm wind damage with an estimated maximum wind speed of 80 to 85 mph along a path approximately 8.75 miles long and 3.5 miles wide beginning in east-central Dorchester County at 642 PM, then tracking ac…
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 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 | 11 | 0 |
| 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 |