Minnesota

Storm History: Mahnomen County, Minnesota

368 episodes, 451 events since 1958

Every storm the National Weather Service has filed in Mahnomen County, Minnesota: 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
451
Deaths
0
Injuries
0
Damage
$8.1 million
Episodes
368

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 Mahnomen 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
Tornado10100$2.9 million
Hail7400$4,000
Winter Storm5300
Extreme Cold/Wind Chill4800
Blizzard3600
Heavy Snow3000
Flash Flood2300$5.0 million
Drought1900
Cold/Wind Chill1500$21,000
Thunderstorm Wind1400$127,000
High Wind1400
Frost/Freeze800
Flood600$15,000
Ice Storm500
Excessive Heat200
Heat100
Funnel Cloud100
Winter Weather100

The deadliest

None recorded.

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 Mahnomen County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Mahnomen CountyEvery warning in Mahnomen County since 1986Every county in Minnesota

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.