Montana

Storm History: Blaine County, Montana

221 episodes, 345 events since 1957

Every storm the National Weather Service has filed in Blaine County, Montana: 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
345
Deaths
0
Injuries
0
Damage
$5.1 million
Episodes
221

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 Blaine 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
Hail13100$2.2 million
Thunderstorm Wind5900$101,000
High Wind3800
Tornado3500$250,000
Heavy Snow1600
Flood1500$1.5 million
Extreme Cold/Wind Chill1300
Winter Storm1200
Blizzard800$1.1 million
Flash Flood600
Heavy Rain400
Funnel Cloud300
Wildfire200
Ice Storm200
Avalanche100

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.

Every episode, newest first

More

Tornadoes in Blaine CountyEvery warning in Blaine County since 1986Every county in Montana

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.