Iowa

Storm History: Winneshiek County, Iowa

392 episodes, 627 events since 1955

Every storm the National Weather Service has filed in Winneshiek County, Iowa: 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
627
Deaths
2
Injuries
17
Damage
$44 million
Episodes
392

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 Winneshiek 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
Hail18300$15 million
Tornado11704$9.8 million
Flash Flood5900$17 million
Thunderstorm Wind5100$593,000
Winter Storm5102$18,000
Flood2800$1.1 million
Heavy Snow2200
Blizzard2101$77,000
Drought2000
Extreme Cold/Wind Chill1700
High Wind1200$267,000
Winter Weather11210$8,000
Cold/Wind Chill700
Heat700
Excessive Heat600$35,000
Ice Storm500
Funnel Cloud400
Dense Fog200
Strong Wind200$400
Frost/Freeze100
Lightning100$30,000

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 Winneshiek County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Winneshiek CountyEvery warning in Winneshiek County since 1986Every county in Iowa

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.