Tornado History Map

Koochiching County, Minnesota tornado history

8 tornadoes recorded in or across Koochiching County from 1955 to 1993, 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 Koochiching County

The Storm Prediction Center records 8 tornadoes whose paths touched Koochiching County, Minnesota between 1955 and 1993. They killed 2 people and injured 5. The busiest month is June, with 4 tornadoes. The strongest was an F2 on 1 September 1973. The most recent was on 9 August 1993.

  • 8tornadoes
  • 2deaths
  • 5injuries
  • 26per 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 Koochiching County?

RatingTornadoesShare
F0 / EF0675%
F1 / EF1113%
F2 / EF2113%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Koochiching County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 3 in 1990s.1950s21970s11980s21990s3

The 1990s only run to 1993, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s2
1970s1
1980s2
1990s3
Tornadoes by month
Bar chart of tornadoes by period. The most is 4 in Jun.Jan0Feb0Mar0Apr0May0Jun4Jul1Aug1Sep2Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr0
May0
Jun4
Jul1
Aug1
Sep2
Oct0
Nov0
Dec0

Records for Koochiching County

  • Deadliest and Most recent: Minnesota tornado9 August 1993, F0, 2 deaths, 1.2 miles long
  • Strongest and Longest path: Minnesota tornado1 September 1973, F2, 5 injuries, 54.5 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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