KinwarnDuncan, OK tornado warnings
Duncan was inside 3 tornado warnings, 162 severe thunderstorm warnings and 27 flash flood warnings from 2016 to 2025, about 0.3, 16 and 2.7 a year, counting warnings whose outline covered the center of Duncan. The most recent tornado warning there was on April 27, 2024.
In the 12 months to October 19, 2026: 0 tornado warnings, 26 severe thunderstorm warnings, 0 flash flood warnings. 39th of 46 Oklahoma cities on Kinwarn for tornado warnings, 2016 to 2025.
Duncan warnings and radar right now
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How many tornado warnings does Duncan get?
From 2016 to 2025, the center of Duncan was inside 3 tornado warnings, about 0.3 a year. Severe thunderstorm warnings were more common: 162 severe thunderstorm warnings, about 16 a year. Since the Weather Service started the tag in 2021, 3 severe thunderstorm warnings that covered the center of Duncan 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 | 24 | 0 |
| 2025 | 0 | 23 | 5 |
| 2024 | 1 | 21 | 2 |
| 2023 | 1 | 17 | 0 |
| 2022 | 0 | 7 | 0 |
| 2021 | 0 | 8 | 1 |
| 2020 | 0 | 23 | 3 |
| 2019 | 0 | 17 | 5 |
| 2018 | 0 | 14 | 4 |
| 2017 | 1 | 18 | 4 |
| 2016 | 0 | 14 | 3 |
| 2015 | 1 | 17 | 10 |
| 2014 | 0 | 6 | 0 |
| 2013 | 0 | 14 | 0 |
| 2012 | 0 | 9 | 0 |
| 2011 | 0 | 15 | 0 |
| 2010 | 0 | 7 | 0 |
| 2009 | 0 | 14 | 1 |
| 2008 | 0 | 6 | 1 |
Flash flood warnings in Duncan
The center of Duncan was inside 27 flash flood warnings from 2016 to 2025, about 2.7 a year, counting warnings whose outline covered the center of Duncan. The most recent flash flood warning there was on May 2, 2025. The most in one year was 10, in 2015. In the 12 months to October 19, 2026: 0 flash flood warnings.
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
Tornadoes near Duncan
41 tornadoes have passed within 10 miles of the center of Duncan since 1950. The most recent was on November 3, 2024 (EF3, 7.4 miles from the center). The strongest: EF3 on November 3, 2024, 7.4 miles away at its closest.
| Date | Rating | Closest | Path | Deaths |
|---|---|---|---|---|
| Nov 3, 2024 | EF3 | 7.4 mi | 21.7 mi | 0 |
| Nov 3, 2024 | EF1 | 6.3 mi | 1.3 mi | 0 |
| Jun 15, 2023 | unrated | 10 mi | 0.5 mi | 0 |
| Jun 15, 2023 | EF0 | 4.3 mi | 0.8 mi | 0 |
| Jun 15, 2023 | EF1 | 8.2 mi | 0.5 mi | 0 |
| Dec 13, 2022 | EF1 | 2.9 mi | 0.3 mi | 0 |
| May 18, 2017 | EF0 | 5.2 mi | 0.2 mi | 0 |
| May 8, 2016 | unrated | 8.7 mi | 1.3 mi | 0 |
| May 20, 2013 | EF0 | 5.8 mi | 1 mi | 0 |
| May 20, 2013 | EF1 | 8.1 mi | 4 mi | 0 |
| Mar 30, 2006 | F0 | 6.3 mi | 0.5 mi | 0 |
| Jun 4, 2005 | F0 | 8.9 mi | 0.1 mi | 0 |
The 12 most recent of 41. Closest is the distance from the center of Duncan to the tornado’s path. Deaths are for the whole path.
Near Duncan
Stephens County
40 tornado warnings, 2016 to 2025 · 73 tornadoes since 1950
Lawton
3 tornado warnings, 2016 to 2025
Chickasha
5 tornado warnings, 2016 to 2025
Blanchard
11 tornado warnings, 2016 to 2025
Ardmore
8 tornado warnings, 2016 to 2025
Newcastle
13 tornado warnings, 2016 to 2025
All of Oklahoma
Every county and city, ranked by tornado warnings
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About these numbers
Counts are National Weather Service warnings whose outline covered the center of Duncan, through October 19, 2026. How Kinwarn counts · Oklahoma data (CSV)
Cite: Kinwarn. “Duncan, OK tornado warnings.” kinwarn.com/oklahoma/duncan. National Weather Service data through October 19, 2026.
Sources: IEM warning archive · NWS 2007 outlines · SPC tornado database · Census places · NWS tornado alerts · NWS destructive tag · NWS flood alerts · NWS flash flood tags