Montana Tornadoes
Montana averages 6 tornadoes per year. Eastern plains produce occasional events. Mountain terrain suppresses formation across most of the state.
Montana Tornado Statistics
- Average tornadoes per year: ~6
- Peak season: June-August
- Regional focus: Eastern plains
Why Montana?
Eastern Plains Position
Eastern Montana extends the Great Plains north. Similar conditions to Wyoming and North Dakota.
Continental Air Masses
Occasional Gulf moisture reaches during summer, triggering severe weather.
Mountain Barrier
Rocky Mountains limit tornado activity to central and eastern Montana.
Regional Montana Risk
Eastern Montana
Billings, Miles City area. Great Plains extension. Highest tornado density.
Central Montana
Great Falls area. Moderate risk.
Western Montana
Missoula, Kalispell. Very rare tornadoes due to mountain terrain.
Notable Montana Cities
- Billings - largest city, in Great Plains extension
- Missoula - western, very rare tornadoes
- Great Falls - central Montana
- Bozeman - mountain valley
Living in Montana
- Tornado risk low but real in east
- NOAA weather radio recommended in eastern plains
- Basic weather awareness sufficient
- Understanding of open plains storm risk
Try the interactive simulator
Place an EF0–EF5 tornado anywhere in the world and see modeled fatalities, structural damage, and economic loss based on real census data.
Launch simulator →Try the interactive simulator
Place an EF0–EF5 tornado anywhere in the world and see modeled fatalities, structural damage, and economic loss based on real census data.
Launch simulator →