Tornado History Map

Union County, Tennessee tornado history

3 tornadoes recorded in or across Union County from 1974 to 2009, 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 3 tornadoes whose paths touched Union County, Tennessee between 1974 and 2009. None of them is recorded as having killed anyone. The busiest month is April, with 1 tornadoes. The strongest was an F1 on 1 October 1977. The most recent was on 8 May 2009.

  • 3tornadoes
  • 0deaths
  • 0injuries
  • 134per 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 / EF0267%
F1 / EF1133%
F2 / EF200%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Union County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 2 in 1970s.1970s22000s1

The 2000s only run to 2009, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1970s2
2000s1
Tornadoes by month
Bar chart of tornadoes by period. The most is 1 in Apr.Jan0Feb0Mar0Apr1May1Jun0Jul0Aug0Sep0Oct1Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr1
May1
Jun0
Jul0
Aug0
Sep0
Oct1
Nov0
Dec0

Records for Union County

  • Strongest: Tennessee tornado1 October 1977, F1, 4.3 miles long
  • Longest path: Tennessee tornado4 April 1974, F0, 8.7 miles long
  • Most recent: Tennessee tornado8 May 2009, EF0, 0.8 miles long

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

More in Tennessee

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