South Dakota

Storm History: Corson County, South Dakota

610 episodes, 939 events since 1953

Every storm the National Weather Service has filed in Corson County, South Dakota: 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
939
Deaths
2
Injuries
7
Damage
$2.2 million
Episodes
610

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 Corson 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
Hail35600$200,000
Tornado13404$258,000
High Wind10103
Thunderstorm Wind6900
Drought5400
Flood4200$1.6 million
Blizzard3810
Flash Flood3700
Extreme Cold/Wind Chill3400
Heavy Snow3000
Winter Storm2000$120,000
Wildfire600
Excessive Heat600$15,000
Cold/Wind Chill300
Heat200
Winter Weather210
Ice Storm200
Lightning100
Strong Wind100
Dense Smoke100

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 Corson County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Corson CountyEvery warning in Corson County since 1986Every county in South Dakota

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.