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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.

January 3, 2018 · Dorchester, South Carolina
Heavy Snow Heavy Snow1 death
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…
October 3, 2015 · Dorchester, South Carolina
Flash Flood Flash Flood$3.1M damage
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…
October 3, 2015 · Dorchester, South Carolina
Flash Flood Flash Flood$3.1M damage
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…
May 12, 1974 · Dorchester, South Carolina
Tornado F1 Tornado2 injuries, $2.5M damage
August 22, 2025 · Dorchester, South Carolina
Flash Flood Flash Flood
Dorchester County Emergency Management reported the intersection of Congressional Boulevard and Butterfield Road flooded and not passable.
August 22, 2025 · Dorchester, South Carolina
Flash Flood Flash Flood
Dorchester County Emergency Management reported the 300 Block of Woodward Boulevard flooded and impassable.
August 22, 2025 · Dorchester, South Carolina
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.
August 22, 2025 · Dorchester, South Carolina
Flash Flood Flash Flood
Emergency management reported the Dorchester Fire Department Station 10 had floodwaters in the living quarters.
August 22, 2025 · Dorchester, South Carolina
Flash Flood Flash Flood
Dorchester County Emergency Management relayed images showing water entering the bottom floors of several homes along Boon Hill Road.
August 16, 2025 · Dorchester, South Carolina
Flash Flood Flash Flood
Dorchester County Emergency Management reported the intersection of Orangeburg Road and Highway 17A impassible due to flooding.
August 16, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
Emergency management reported a tree down near the intersection of Beach Hill Road and Windward Drive.
July 11, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a tree down at the intersection of Orangeburg Road and Old Parsonage Road.
July 11, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported a tree down at the traffic circle along Orangeburg Road and W Butternut Road.
July 11, 2025 · Dorchester, South Carolina
Lightning Lightning
Dorchester County Emergency Management reported that a lightning strike started a structure fire in the 100 block of Hammock Street.
July 11, 2025 · Dorchester, South Carolina
Lightning Lightning
Dorchester County Emergency Management reported that lightning struck a structure and started a fire in the 1000 block of Lovebug Lane.
July 11, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind1 injury
Dorchester County Emergency Management reported a tree fell on a vehicle near the 700 block of Highway 61, causing a minor injury.
June 9, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported multiple trees down across downtown Summerville.
June 9, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A trained spotter reported a fascia blown off at the roof line of a house.
June 8, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down on a vehicle on Highway 15 North near Duncan Chapel Road.
June 8, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down in the 1700 Block of Highway 15.
June 8, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down along Charleston Highway near Shannon Loop.
June 8, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down on a power line in the 100 Block of Pendarvis Circle.
June 8, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
A Dorchester County emergency manager reported a tree down on a power line along the 1900 Block of Summers Drive.
May 29, 2025 · Dorchester, South Carolina
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.
May 19, 2025 · Dorchester, South Carolina
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.
May 19, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind1 injury
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.
May 19, 2025 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
Dorchester County Emergency Management reported one tree down near the intersection of Wire Road and Murray Cemetary Road.
May 19, 2025 · Dorchester, South Carolina
Hail Hail
Dorchester County Emergency Management reported penny sized hail near Seven Acres Road and Highway 15.
January 21, 2025 · Dorchester, South Carolina
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…
January 10, 2025 · Dorchester, South Carolina
Winter Weather Winter Weather2 injuries
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 …
September 26, 2024 · Dorchester, South Carolina
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).
August 18, 2024 · Dorchester, South Carolina
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.
August 9, 2024 · Dorchester, South Carolina
Flash Flood Flash Flood
A Dorchester County emergency manager shared a picture of paved Wire Road washed out near the intersection with Zion Road.
August 9, 2024 · Dorchester, South Carolina
Flash Flood Flash Flood
A Dorchester County emergency manager shared a picture of a washout along the paved 695 Block of Powder Horn Road.
August 9, 2024 · Dorchester, South Carolina
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.
August 9, 2024 · Dorchester, South Carolina
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.
August 9, 2024 · Dorchester, South Carolina
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.
August 6, 2024 · Dorchester, South Carolina
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.
August 6, 2024 · Dorchester, South Carolina
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.
August 5, 2024 · Dorchester, South Carolina
Tropical Storm Tropical Storm
Dorchester County Emergency Management reported 9 trees down across Dorchester County, most notably near Givhans.
July 20, 2024 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
South Carolina Highway Patrol reported a tree down on Stephanie Circle.
June 10, 2024 · Dorchester, South Carolina
Hail Hail
A mPING report of 2 inch hail was received by the public.
June 10, 2024 · Dorchester, South Carolina
Hail Hail
The public reported ping pong ball size hail near Beech Hill Elementary.
June 10, 2024 · Dorchester, South Carolina
Hail Hail
A NWS employee reported golf ball size hail.
June 10, 2024 · Dorchester, South Carolina
Hail Hail
The public reported golf ball size hail along Ladson Road.
June 10, 2024 · Dorchester, South Carolina
Hail Hail
A spotter reported quarter size hail and gusty winds.
June 10, 2024 · Dorchester, South Carolina
Hail Hail
A Dorchester County emergency manager reported hail up to the size of golf balls.
June 10, 2024 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
The public reported trees down along Legend Oaks Way.
June 10, 2024 · Dorchester, South Carolina
Thunderstorm Wind Thunderstorm Wind
The public reported trees down along Charlie Lane.
June 10, 2024 · Dorchester, South Carolina
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

YearEventsTornadoes
2025260
2024470
2023220
2022431
2021120
2020382
2019390
2018320
2017251
2016400
2015270
2014230
2013382
2012380
2011510
2010380
2009400
2008581
2007220
2006552
2005100
2004161
2003191
2002202
2001110
2000190
1999140
1998222
1997110
1996140
1995160
199460
199320
199220
199130
199070
198970
198850
198620
198530
198420
198341
198010
197820
197720
197632
197421
196611
196310
196010
195811
195510