Powder River County, Montana tornado history

19 tornadoes recorded in or across Powder River County from 1954 to 2014, 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 Powder River County

The Storm Prediction Center records 19 tornadoes whose paths touched Powder River County, Montana between 1954 and 2014. None of them is recorded as having killed anyone. The busiest month is June, with 8 tornadoes. The strongest was an F2 on 25 April 1964. The most recent was on 18 May 2014.

  • 19tornadoes
  • 0deaths
  • 1injury
  • 58per 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 Powder River County?

RatingTornadoesShare
F0 / EF0842%
F1 / EF1737%
F2 / EF2421%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Powder River County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 4 in 2000s.1950s11960s31970s11980s31990s32000s42010s4

The 2010s only run to 2014, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s1
1960s3
1970s1
1980s3
1990s3
2000s4
2010s4
Tornadoes by month
Bar chart of tornadoes by period. The most is 8 in Jun.Jan0Feb0Mar0Apr1May4Jun8Jul5Aug1Sep0Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr1
May4
Jun8
Jul5
Aug1
Sep0
Oct0
Nov0
Dec0

Records for Powder River County

  • Strongest and Longest path: Montana tornado25 April 1964, F2, 1 injury, 6 miles long
  • Most recent: Montana tornado18 May 2014, EF0, 0.1 miles 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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