Tornado History Map

Union County, Ohio tornado history

14 tornadoes recorded in or across Union County from 1963 to 2024, 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 Union County

The Storm Prediction Center records 14 tornadoes whose paths touched Union County, Ohio between 1963 and 2024. They killed 4 people and injured 76. The busiest month is June, with 4 tornadoes. The strongest was an F3 on 10 May 1973. The most recent was on 29 December 2024.

  • 14tornadoes
  • 4deaths
  • 76injuries
  • 324per 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 Union County?

RatingTornadoesShare
F0 / EF0429%
F1 / EF1643%
F2 / EF2214%
F3 / EF3214%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Union County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 4 in 1960s.1960s41970s41980s12000s22010s12020s2

The 2020s only run to 2024, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1960s4
1970s4
1980s1
2000s2
2010s1
2020s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 4 in Jun.Jan0Feb0Mar2Apr2May1Jun4Jul1Aug0Sep1Oct0Nov2Dec1
Show the numbers
PeriodCount
Jan0
Feb0
Mar2
Apr2
May1
Jun4
Jul1
Aug0
Sep1
Oct0
Nov2
Dec1

Records for Union County

  • Deadliest: Magnetic Springs, Ohio tornado11 April 1965, F2, 4 deaths, 62 injuries, 22.2 miles long
  • Strongest and Longest path: Ohio tornado10 May 1973, F3, 8 injuries, 89.6 miles long
  • Most recent: Ohio tornado29 December 2024, EF0, 0.4 miles long

Notable tornadoes in Union County

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

More in Ohio

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