Iowa

Storm History: Poweshiek County, Iowa

376 episodes, 554 events since 1953

Every storm the National Weather Service has filed in Poweshiek 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
554
Deaths
8
Injuries
60
Damage
$164 million
Episodes
376

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 Poweshiek 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
Tornado170653$16 million
Hail14006$4.6 million
Flash Flood3900$1.3 million
Drought3200$110 million
Winter Storm3000$1.3 million
High Wind2500$875,000
Flood2000$21 million
Blizzard1600$335,000
Heavy Snow1620$3.4 million
Ice Storm1300$323,000
Thunderstorm Wind1101$255,000
Extreme Cold/Wind Chill1100
Frost/Freeze900$4.0 million
Cold/Wind Chill700$294,000
Heavy Rain700
Excessive Heat300$135,000
Heat100
Winter Weather100
Lightning100$25,000
Wildfire100$5,000
Funnel Cloud100

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 Poweshiek County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Poweshiek CountyEvery warning in Poweshiek 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.