Tornado History Map

Harmon County, Oklahoma tornado history

41 tornadoes recorded in or across Harmon County from 1952 to 2024, coloured by rating on the map.

Tap or scroll to load the interactive map

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 Harmon County

The Storm Prediction Center records 41 tornadoes whose paths touched Harmon County, Oklahoma between 1952 and 2024. None of them is recorded as having killed anyone. The busiest month is May, with 22 tornadoes. The strongest was an F3 on 17 June 1955. The most recent was on 18 November 2024.

  • 41tornadoes
  • 0deaths
  • 6injuries
  • 763per 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 Harmon County?

RatingTornadoesShare
F0 / EF01434%
F1 / EF11332%
F2 / EF2615%
F3 / EF312%
F4 / EF400%
F5 / EF500%
Unknown rating717%

Harmon County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 10 in 1980s.1950s71960s31970s11980s101990s52000s12010s42020s10

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

Show the numbers
PeriodCount
1950s7
1960s3
1970s1
1980s10
1990s5
2000s1
2010s4
2020s10
Tornadoes by month
Bar chart of tornadoes by period. The most is 22 in May.Jan0Feb1Mar2Apr5May22Jun6Jul0Aug0Sep1Oct1Nov3Dec0
Show the numbers
PeriodCount
Jan0
Feb1
Mar2
Apr5
May22
Jun6
Jul0
Aug0
Sep1
Oct1
Nov3
Dec0

Records for Harmon County

  • Strongest: Texas tornado17 June 1955, F3, 16.2 miles long
  • Longest path: Oklahoma tornado6 May 1965, F2, 2 injuries, 31.3 miles long
  • Most recent: Oklahoma tornado18 November 2024, Unknown rating, 2.7 miles long

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

More in Oklahoma

Embed this map

Copy this code into your web page. It is free to use. Please keep the link under the map, as it is how people find where the map comes from.