Iowa

Storm History: Buchanan County, Iowa

487 episodes, 822 events since 1950

Every storm the National Weather Service has filed in Buchanan 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
822
Deaths
1
Injuries
12
Damage
$42 million
Episodes
487

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 Buchanan 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
Hail20301$4.1 million
Tornado17809$15 million
Flash Flood11411$2.1 million
Thunderstorm Wind7701$283,000
Winter Storm6100
Winter Weather4600$7,000
Flood3100$4.3 million
Heavy Snow2300$5,000
Blizzard1600$5,000
Ice Storm1500$771,000
High Wind1300$128,000
Extreme Cold/Wind Chill1200
Dense Fog1000
Frost/Freeze700$413,000
Cold/Wind Chill500
Drought400$15 million
Heat300
Strong Wind100
Funnel Cloud100
Excessive Heat100
Freezing Fog100

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 Buchanan County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Buchanan CountyEvery warning in Buchanan 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.