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Tornado in Warren County, Ohio
35 tornadoes events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Tornado.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 35 tornado events in Warren County, Ohio, between 1950 and 2026, spread over 19 years.
May is the busiest month, with 11 of the recorded events. The last 20 years account for 16 events against 10 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 2.2% of the 1,565 tornado events recorded in Ohio; its 8.7 per 100 square miles compares with 3.8 statewide.
By rating: 19 at (E)F0, 9 at (E)F1, 4 at (E)F2, 1 at (E)F3, 2 at (E)F4, 0 at (E)F5. Tornadoes before 2007 carry the original Fujita rating.
Compared with Ohio
| Measure | Warren County | Ohio | US |
|---|---|---|---|
| Tornado events since 1950 | 35 | 1,565 | 81,281 |
| Per 100 square miles | 8.7 | 3.8 | 2.3 |
| Per 10,000 residents | 1.4 | 1.3 | 2.4 |
| Deaths recorded | 0 | 200 | 6,410 |
| Busiest month | May | June | May |
By year
Seasonality
0Feb
0Mar
4Apr
7May
11Jun
4Jul
4Aug
3Sep
1Oct
1Nov
0Dec
0
Magnitude distribution
Enhanced Fujita scale wind estimates
- EF0/F0
- 65–85 mph (EF0)
- EF1/F1
- 86–110 mph (EF1)
- EF2/F2
- 111–135 mph (EF2)
- EF3/F3
- 136–165 mph (EF3)
- EF4/F4
- 166–200 mph (EF4)
- EF5/F5
- over 200 mph (EF5)
- Unrated
- no rating recorded
Tornado rating as recorded (Fujita scale before February 2007, Enhanced Fujita after).
Recorded events
All 35 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 3 Apr 2025 | Tornado | EF0 | $200K | — | — | — | County |
| 2 Apr 2025 | Tornado | EF0 | $40K | — | — | — | County |
| 30 Mar 2025 | Tornado | EF0 | $215K | — | — | — | County |
| 30 Mar 2025 | Tornado | EF0 | $100K | — | — | — | County |
| 30 Jul 2024 | Tornado | EF1 | $40K | — | — | — | County |
| 7 May 2024 | Tornado | EF0 | $20K | — | — | — | County |
| 7 May 2024 | Tornado | EF1 | $200K | — | — | — | County |
| 7 May 2024 | Tornado | EF1 | $500K | — | — | — | County |
| 7 May 2024 | Tornado | EF0 | $15K | — | — | — | County |
| 7 May 2024 | Tornado | EF0 | $50K | — | — | — | County |
| 23 Mar 2022 | Tornado | EF0 | $10K | — | — | — | County |
| 24 May 2017 | Tornado | EF0 | — | — | — | — | County |
| 23 Jun 2016 | Tornado | EF1 | $360K | $10K | — | — | County |
| 1 May 2012 | Tornado | EF0 | $5K | — | — | — | County |
| 1 May 2012 | Tornado | EF0 | $10K | — | — | — | County |
| 23 Mar 2012 | Tornado | EF0 | $20K | — | — | — | County |
| 11 Jul 2006 | Tornado | F1 | $200K | — | — | — | County |
| 11 Jul 2006 | Tornado | F0 | $10K | — | — | — | County |
| 30 Aug 2005 | Tornado | F0 | $20K | — | — | — | County |
| 24 Aug 1999 | Tornado | F0 | $25K | — | — | — | County |
| 9 Apr 1999 | Tornado | F1 | $3.0M | — | — | — | County |
| 9 Apr 1999 | Tornado | F2 | $2.5M | — | — | — | County |
| 12 Jul 1992 | Tornado | F1 | $250K | — | — | — | County |
| 20 Aug 1991 | Tornado | F0 | $25K | — | — | — | County |
| 14 Sep 1990 | Tornado | F2 | $2.5M | — | — | 4 | County |
| 2 Jun 1990 | Tornado | F4 | $25M | — | — | — | County |
| 1 Oct 1977 | Tornado | F0 | $250K | — | — | — | County |
| 24 Jun 1976 | Tornado | F0 | $250K | — | — | — | County |
| 2 Apr 1975 | Tornado | F2 | $2.5M | — | — | 3 | County |
| 18 May 1974 | Tornado | F1 | $25K | — | — | — | County |
| 3 Apr 1974 | Tornado | F4 | $250K | — | — | — | County |
| 3 Apr 1974 | Tornado | F2 | $2.5M | — | — | 9 | County |
| 10 May 1969 | Tornado | F3 | $250K | — | — | 10 | County |
| 22 May 1959 | Tornado | F0 | $3K | — | — | — | County |
| 26 Jun 1956 | Tornado | F1 | $3K | — | — | — | County |
Questions and answers
How many tornado events has Warren County had?
35 events in the NCEI Storm Events record between 1950 and 2026. Reporting of tornadoes became far more complete after 1996, so early decades undercount.
When was the last recorded tornado event in Warren County?
3 Apr 2025 (Tornado, EF0). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Warren County?
The tornado of 2 Jun 1990, with property damage estimated by NCEI at $25M.
How does Warren County compare with Ohio for tornado?
8.7 events per 100 square miles against 3.8 statewide; the county holds 35 of the state's 1,565 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Tornado hub and the county page.