Portage County, Wisconsin tornado history

26 tornadoes recorded in or across Portage County from 1951 to 2025, 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 Portage County

The Storm Prediction Center records 26 tornadoes whose paths touched Portage County, Wisconsin between 1951 and 2025. They killed 8 people and injured 10. The busiest month is June, with 9 tornadoes. The strongest was an F4 on 26 September 1951. The most recent was on 15 May 2025.

  • 26tornadoes
  • 8deaths
  • 10injuries
  • 325per 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 Portage County?

RatingTornadoesShare
F0 / EF0623%
F1 / EF11038%
F2 / EF2935%
F3 / EF300%
F4 / EF414%
F5 / EF500%
Unknown rating00%

Portage County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 7 in 1970s.1950s31960s21970s71980s31990s42000s32010s32020s1

The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s3
1960s2
1970s7
1980s3
1990s4
2000s3
2010s3
2020s1
Tornadoes by month
Bar chart of tornadoes by period. The most is 9 in Jun.Jan0Feb0Mar1Apr3May5Jun9Jul3Aug2Sep1Oct1Nov0Dec1
Show the numbers
PeriodCount
Jan0
Feb0
Mar1
Apr3
May5
Jun9
Jul3
Aug2
Sep1
Oct1
Nov0
Dec1

Records for Portage County

Notable tornadoes in Portage County

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

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