South Carolina

Storm History: Union County, South Carolina

389 episodes, 473 events since 1957

Every storm the National Weather Service has filed in Union County, South Carolina: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
473
Deaths
4
Injuries
7
Damage
$72 million
Episodes
389

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.

Open the live radar over Union County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail16701$682,000
Thunderstorm Wind11010$186,000
Tornado5815$8.2 million
Drought3600
Winter Weather2200
Flash Flood1600$263,000
Heavy Snow1100$20,000
Winter Storm900
Flood801$114,000
Ice Storm700$8.6 million
Cold/Wind Chill500$50 million
High Wind500$520,000
Dense Fog300
Strong Wind310$15,000
Heat210
Lightning200$55,000
Frost/Freeze200$1.0 million
Excessive Heat200
Tropical Storm200$2.0 million
Extreme Cold/Wind Chill100
Sleet100
Dust Devil100$1,000

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Union County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Union CountyEvery warning in Union County since 1986Every county in South Carolina

Sources

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 2026-09-24.