North Dakota

Storm History: Cavalier County, North Dakota

499 episodes, 740 events since 1955

Every storm the National Weather Service has filed in Cavalier County, North 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
740
Deaths
2
Injuries
3
Damage
$36 million
Episodes
499

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 Cavalier 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
Hail17700$4.6 million
Tornado17411$17 million
Blizzard8500$6.0 million
Extreme Cold/Wind Chill6700
Flash Flood5000$290,000
Winter Storm4300$14,000
High Wind3400$4,000
Heavy Snow2500
Flood1810$1.5 million
Thunderstorm Wind1702$321,000
Cold/Wind Chill1700$5,000
Drought1300
Frost/Freeze900
Ice Storm600$6.4 million
Funnel Cloud300
Heat100
Wildfire100

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 Cavalier County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Cavalier CountyEvery warning in Cavalier County since 1986Every county in North 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.