Cascade County, Montana tornado history

16 tornadoes recorded in or across Cascade County from 1958 to 2000, coloured by rating on the map.

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Years1950 to 2025
Rating (F or EF scale)

Shows tornadoes that started in, or crossed, the chosen state. To see how many have passed near you, search a town or ZIP code, or tap the map.

Key
  • F0 / EF0 Light damage
  • F1 / EF1 Moderate damage
  • F2 / EF2 Considerable damage
  • F3 / EF3 Severe damage
  • F4 / EF4 Devastating damage
  • F5 / EF5 Incredible damage
  • Unknown Not rated (2007 onwards)

How to read the lines. Each line is one tornado, drawn from where it started to where it ended, coloured and sized by its rating. A dot means the record has no end point. Tap a line for its details, or tap anywhere else to see how many tornadoes have passed nearby. Weaker tornadoes appear as you zoom in. Ratings use the Fujita (F) scale before 1 February 2007 and the Enhanced Fujita (EF) scale from then on.

Tornadoes in Cascade County

The Storm Prediction Center records 16 tornadoes whose paths touched Cascade County, Montana between 1958 and 2000. None of them is recorded as having killed anyone. The busiest month is July, with 8 tornadoes. The strongest was an F2 on 30 June 1975. The most recent was on 5 July 2000.

  • 16tornadoes
  • 0deaths
  • 0injuries
  • 59per 10,000 sq mi of land

A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.

How strong were the tornadoes in Cascade County?

RatingTornadoesShare
F0 / EF0531%
F1 / EF11063%
F2 / EF216%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Cascade County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 5 in 1960s.1950s11960s51970s51980s21990s22000s1

The 2000s only run to 2000, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s1
1960s5
1970s5
1980s2
1990s2
2000s1
Tornadoes by month
Bar chart of tornadoes by period. The most is 8 in Jul.Jan0Feb0Mar0Apr0May1Jun7Jul8Aug0Sep0Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr0
May1
Jun7
Jul8
Aug0
Sep0
Oct0
Nov0
Dec0

Records for Cascade County

  • Strongest: Montana tornado30 June 1975, F2, 0.1 miles long
  • Longest path: Montana tornado2 July 1964, F1, 27 miles long
  • Most recent: Montana tornado5 July 2000, F0, 1 mile long

Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.

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