South Dakota

Storm History: Minnehaha County, South Dakota

904 episodes, 1,554 events since 1956

Every storm the National Weather Service has filed in Minnehaha 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
1,554
Deaths
15
Injuries
127
Damage
$143 million
Episodes
904

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 Minnehaha 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
Hail51722$17 million
Tornado25436$36 million
Flood16100$35 million
Flash Flood12700$18 million
Thunderstorm Wind12301$3.7 million
Winter Weather75412$3,000
Winter Storm5428$20 million
High Wind5007$675,000
Blizzard46019$1.0 million
Drought4200$9.5 million
Heavy Snow2711$20,000
Excessive Heat22010
Extreme Cold/Wind Chill2000
Cold/Wind Chill1310
Ice Storm6156$1.0 million
Lightning603$165,000
Heat400
Funnel Cloud300
Wildfire200$50,000
Dense Fog112$20,000
Strong Wind100

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 Minnehaha County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Minnehaha CountyEvery warning in Minnehaha 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.