Union, OH tornado history
31 tornadoes have passed within 10 miles of the center of Union, OH from 1950 through 2025, according to the NOAA Storm Prediction Center, ranking 5th of 360 Ohio cities with a tornado on record. 2 were rated F3/EF3 or stronger by the National Weather Service. The most recent was on June 11, 2023 (EF0, 0.6-mile path); the strongest, on May 27, 2019, was rated EF4.
Dashed circle: 10 miles from the city's Census center point. A tornado counts when its recorded path passes inside the circle. Paths run straight from start to end point, as SPC records them.
Source: National Storms (nationalstorms.com), CC BY 4.0, data from NOAA Storm Prediction Center storm reports.
Every tornado within 10 miles of the center of Union, OH
| Date | Rating | Path length | Deaths / injuries | Started in | Closest to center |
|---|---|---|---|---|---|
| Jun 11, 2023 | EF0 | 0.6 mi | 0 / 0 | Miami County, OH | 6.5 mi |
| Mar 31, 2023 | EF0 | 5.9 mi | 0 / 0 | Darke County, OH | 4.6 mi |
| Mar 31, 2023 | EF0 | 12.8 mi | 0 / 0 | Miami County, OH | 9.2 mi |
| Jul 23, 2022 | EF1 | 1.8 mi | 0 / 0 | Miami County, OH | 9.7 mi |
| Jun 8, 2022 | EF2 | 13.8 mi | 0 / 0 | Miami County, OH | 4.7 mi |
| Jun 8, 2022 | EF1 | 2.5 mi | 0 / 0 | Darke County, OH | 7.6 mi |
| Jan 11, 2020 | EF0 | 3.1 mi | 0 / 0 | Miami County, OH | 9.2 mi |
| May 27, 2019 | EF2 | 7.6 mi | 0 / 0 | Montgomery County, OH | 3.8 mi |
| May 27, 2019 | EF0 | 3.0 mi | 0 / 0 | Miami County, OH | 4.0 mi |
| May 27, 2019 | EF0 | 5.6 mi | 0 / 0 | Miami County, OH | 6.7 mi |
| May 27, 2019 | EF4 | 18.2 mi | 0 / 166 | Montgomery County, OH | 7.7 mi |
| May 27, 2019 | EF3 | 10.5 mi | 0 / 1 | Darke County, OH | 4.6 mi |
| May 19, 2019 | EF1 | 1.0 mi | 0 / 0 | Montgomery County, OH | 8.5 mi |
| May 30, 2018 | EF0 | 0.1 mi | 0 / 0 | Miami County, OH | 9.2 mi |
| Mar 14, 2016 | EF0 | 0.7 mi | 0 / 0 | Miami County, OH | 8.6 mi |
| Mar 14, 2016 | EF1 | 3.0 mi | 0 / 0 | Montgomery County, OH | 6.9 mi |
| Feb 20, 2014 | EF0 | 2.0 mi | 0 / 0 | Montgomery County, OH | 4.4 mi |
| Oct 31, 2013 | EF1 | 0.6 mi | 0 / 8 | Montgomery County, OH | 5.8 mi |
| Jul 3, 2004 | F0 | 0.1 mi | 0 / 0 | Miami County, OH | 4.4 mi |
| Jul 9, 1999 | F0 | 0.3 mi | 0 / 0 | Miami County, OH | 8.0 mi |
| Apr 8, 1999 | F1 | 3.5 mi | 0 / 0 | Miami County, OH | 5.2 mi |
| Jun 30, 1993 | F2 | 7.0 mi | 0 / 0 | Darke County, OH | 8.8 mi |
| Jun 18, 1992 | F1 | 4.0 mi | 0 / 0 | Miami County, OH | 6.4 mi |
| Jun 3, 1989 | F1 | 1.0 mi | 0 / 0 | Miami County, OH | 7.9 mi |
| Jun 3, 1989 | F1 | 1.0 mi | 0 / 0 | Miami County, OH | 8.4 mi |
| Jun 20, 1984 | F1 | 1.0 mi | 0 / 0 | Miami County, OH | 3.5 mi |
| Jun 13, 1981 | F1 | 1.0 mi | 0 / 0 | Montgomery County, OH | 7.5 mi |
| Jul 2, 1978 | F0 | 27.5 mi | 0 / 0 | Darke County, OH | 8.3 mi |
| Jul 28, 1961 | F1 | 0.1 mi | 0 / 0 | Miami County, OH | 9.4 mi |
| May 22, 1959 | F2 | 0.1 mi | 0 / 0 | Miami County, OH | 5.0 mi |
| Feb 28, 1955 | F1 | 0.5 mi | 0 / 1 | Miami County, OH | 9.4 mi |
More: Montgomery County tornadoes · Ohio tornado history · Union hail history · Ohio damaging wind
Source: NOAA Storm Prediction Center (SPC) Severe Weather Database (SVRGIS) tornado file, 1950–2025, and SPC preliminary storm reports for 2026 (data through November 6, 2026). Ratings are the ones the National Weather Service assigned: Fujita (F) scale before Feb 1, 2007, Enhanced Fujita (EF) after. Paths are drawn as straight lines from the start to the end point SPC records; real paths curve. City and county boundaries: US Census Bureau.
NWS Damage Survey Paths Near Union
The National Weather Service mapped the path of 11 tornadoes within 10 miles of Union in damage surveys (1 EF4, 2 EF3, 1 EF2, 2 EF1, 5 EF0). On the map, those paths follow the survey, colored by the EF rating of each stretch, instead of a straight line from start to end.
| Date | Rating | Peak wind | Path length | Max width | Deaths / injuries | On the ground | Surveyed by |
|---|---|---|---|---|---|---|---|
| Jun 11, 2023 | EF0 | – | 0.6 mi | 150 yd | 0 / 0 | 23:23–18:27 UTC | NWS Wilmington, OH |
| Mar 31, 2023 | EF0 | 80 mph | 5.9 mi | 200 yd | 0 / 0 | 05:02–05:08 UTC | NWS Wilmington, OH |
| Mar 31, 2023 | EF0 | 85 mph | 12.9 mi | 250 yd | 0 / 0 | 05:01–05:14 UTC | NWS Wilmington, OH |
| Jul 23, 2022 | EF1 | 90 mph | 1.8 mi | 200 yd | 0 / 0 | 14:45–14:48 UTC | NWS Wilmington, OH |
| Jun 9, 2022 | EF1 | 100 mph | 2.5 mi | 125 yd | 0 / 0 | 21:42–21:46 UTC | NWS Wilmington, OH |
| May 27, 2019 | EF0 | 70 mph | 5.8 mi | 200 yd | 0 / 0 | 02:47–03:03 UTC | NWS Wilmington, OH |
| May 27, 2019 | EF3 | 140 mph | 9.8 mi | 1,250 yd | 0 / 0 | 03:12–03:32 UTC | NWS Wilmington, OH |
| May 27, 2019 | EF2 | 135 mph | 7.7 mi | – | 0 / 0 | 03:34–03:45 UTC | NWS Wilmington, OH |
| May 27, 2019 | EF4 | 170 mph | 20.1 mi | 1,060 yd | 0 / 0 | 02:41–03:13 UTC | NWS Wilmington, OH |
| May 27, 2019 | EF0 | 80 mph | 3.1 mi | 50 yd | 0 / 0 | 03:19–03:24 UTC | NWS Wilmington, OH |
| May 27, 2019 | EF3 | 140 mph | 10.9 mi | – | 0 / 0 | 02:25–02:44 UTC | NWS Wilmington, OH |
Source: NOAA National Weather Service Damage Assessment Toolkit (DAT): the tornado paths and EF-rating zones NWS survey teams mapped after each storm. Survey data are preliminary and can be revised; NOAA's official record is Storm Data (NCEI). Paths are simplified to about 30 m. Times are when the tornado was on the ground, in UTC.