KinwarnHarmon County, OK tornado warnings
Harmon County had 26 tornado warnings, 286 severe thunderstorm warnings and 19 flash flood warnings from 2016 to 2025, about 2.6, 29 and 1.9 a year. The most recent tornado warning for the county was on April 26, 2025.
In the 12 months to October 19, 2026: 0 tornado warnings, 48 severe thunderstorm warnings, 2 flash flood warnings. 62nd of 77 Oklahoma counties for tornado warnings, 2016 to 2025.
Harmon County warnings and radar right now
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How many tornado warnings does Harmon County get?
From 2016 to 2025, the National Weather Service included Harmon County in 26 tornado warnings, about 2.6 a year. Severe thunderstorm warnings were more common: 286 severe thunderstorm warnings, about 29 a year. Since the Weather Service started the tag in 2021, 11 severe thunderstorm warnings that included Harmon County were tagged destructive (winds of 80 mph or more, or hail 2.75 inches or larger) for at least part of the warned area.
The table runs from 2008, the first full year the National Weather Service drew an outline around every warning.
| Year | Tornado | Severe thunderstorm | Flash flood |
|---|---|---|---|
| 2026 to Oct 19 | 0 | 48 | 2 |
| 2025 | 2 | 36 | 0 |
| 2024 | 5 | 25 | 2 |
| 2023 | 4 | 36 | 1 |
| 2022 | 4 | 26 | 2 |
| 2021 | 1 | 19 | 1 |
| 2020 | 1 | 24 | 0 |
| 2019 | 7 | 29 | 5 |
| 2018 | 0 | 20 | 2 |
| 2017 | 2 | 29 | 2 |
| 2016 | 0 | 42 | 4 |
| 2015 | 0 | 32 | 7 |
| 2014 | 1 | 21 | 1 |
| 2013 | 0 | 21 | 0 |
| 2012 | 2 | 33 | 0 |
| 2011 | 1 | 17 | 0 |
| 2010 | 2 | 15 | 1 |
| 2009 | 0 | 27 | 0 |
| 2008 | 2 | 19 | 1 |
Flash flood warnings in Harmon County
The National Weather Service included Harmon County in 19 flash flood warnings from 2016 to 2025, about 1.9 a year. The most recent flash flood warning for the county was on October 14, 2026. The most in one year was 7, in 2015. In the 12 months to October 19, 2026: 2 flash flood warnings.
The NOAA Storm Events Database lists 4 flash floods in Harmon County since 1996; the most recent report was on May 22, 2016 near Hollis, OK.
A flash flood warning means a flash flood is happening or about to happen. If you are in an area that floods, move to high ground now, and do not drive or walk into floodwater.
Live flash flood warning map · What to do during a flash flood warning · What a flash flood warning means
Tornado history of Harmon County
36 tornadoes have been recorded in Harmon County since 1950: 13 rated 0, 13 rated 1, 3 rated 2, 7 unrated on the F or EF scale. Along their full paths in Oklahoma, these tornadoes injured 6 people. The most came in May (20) and April (5).
Strongest: F2 on May 6, 1965, 31.3 miles long in Oklahoma; F2 on May 13, 1983, 15 miles long in Oklahoma.
Most recent tornadoes
| Date | Rating | Path | Deaths | Injuries |
|---|---|---|---|---|
| Nov 18, 2024 | EF1 | 3.4 mi | 0 | 0 |
| Nov 18, 2024 | EF1 | 4 mi | 0 | 0 |
| Nov 18, 2024 | unrated | 2.7 mi | 0 | 0 |
| May 23, 2024 | EF0 | 0.9 mi | 0 | 0 |
| Feb 26, 2023 | unrated | 7.5 mi | 0 | 0 |
Other storms in Harmon County
Storm reports in Harmon County in the NOAA Storm Events Database through Jun 30, 2026. The largest hail reported in the county was 4.25 inches across.
Recent hail, wind and flash floods
- Jun 23, 2026 · Hail, 1 in · Madge, OK
- Jun 23, 2026 · Thunderstorm wind, 60 mph · Mc Queen, OK
- May 29, 2026 · Thunderstorm wind, 63 mph · Gould, OK
- Apr 1, 2026 · Thunderstorm wind, 61 mph · Gould, OK
- May 23, 2024 · Hail, 2.75 in · Mc Knight, OK
- Feb 2, 2024 · Hail, 1.25 in · Vinson, OK
| Type | Reports | Since |
|---|---|---|
| Tornadoes | 36 | 1950 |
| Hail 1 inch or larger | 157 | 1955 |
| Damaging thunderstorm wind | 152 | 1955 |
| Flash floods | 4 | 1996 |
| River and areal floods | 0 | 1996 |
| Winter storms, ice storms, blizzards, heavy snow | 27 | 1996 |
| Extreme cold | 2 | 1996 |
| Heat | 6 | 1996 |
| Coastal and lakeshore floods | 0 | 1996 |
| Hurricanes, tropical storms, storm surge | 0 | 1996 |
Cities in Harmon County and nearby counties
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About these numbers
Counts are National Weather Service warnings that listed Harmon County, through October 19, 2026. How Kinwarn counts · Oklahoma data (CSV)
Cite: Kinwarn. “Harmon County, OK tornado warnings.” kinwarn.com/oklahoma/harmon-county. National Weather Service data through October 19, 2026.
Sources: IEM warning archive · NWS 2007 outlines · SPC tornado database · NOAA Storm Events · NWS tornado alerts · NWS destructive tag · NWS flood alerts · NWS flash flood tags