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Flood in Harrison County, Ohio
55 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
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 55 flood events in Harrison County, Ohio, between 1950 and 2026, spread over 22 years.
April is the busiest month, with 11 of the recorded events. The last 20 years account for 31 events against 24 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.8% of the 6,794 flood events recorded in Ohio; its 13.7 per 100 square miles compares with 16.6 statewide.
NCEI attributes 2 deaths in the county to floods and flash floods.
Compared with Ohio
| Measure | Harrison County | Ohio | US |
|---|---|---|---|
| Flood events since 1950 | 55 | 6,794 | 183,559 |
| Per 100 square miles | 13.7 | 16.6 | 5.2 |
| Per 10,000 residents | 38.0 | 5.8 | 5.5 |
| Deaths recorded | 2 | 74 | 2,961 |
| Busiest month | April | June | June |
By year
Seasonality
7Feb
4Mar
6Apr
11May
4Jun
11Jul
5Aug
3Sep
3Oct
0Nov
1Dec
0
Recorded events
All 55 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 |
|---|---|---|---|---|---|---|---|
| 24 May 2026 | Flash Flood | — | $2K | — | — | — | County |
| 9 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 9 Jul 2025 | Flash Flood | — | — | — | — | — | County |
| 2 Apr 2024 | Flash Flood | — | — | — | — | — | County |
| 2 Apr 2024 | Flash Flood | — | — | — | — | — | County |
| 2 Apr 2024 | Flash Flood | — | — | — | — | — | County |
| 2 Apr 2024 | Flash Flood | — | — | — | — | — | County |
| 17 Feb 2022 | Flood | — | $5K | — | — | — | County |
| 18 Aug 2021 | Flood | — | $50K | — | — | — | County |
| 20 Mar 2020 | Flash Flood | — | $100K | — | 2 | — | County |
| 11 Jul 2019 | Flash Flood | — | $1K | — | — | — | County |
| 7 Jul 2019 | Flood | — | $1K | — | — | — | County |
| 19 Jun 2019 | Flash Flood | — | — | — | — | — | County |
| 10 Jun 2018 | Flash Flood | — | — | — | — | — | County |
| 6 Jul 2015 | Flash Flood | — | — | — | — | — | County |
| 16 Jun 2015 | Flash Flood | — | $15K | — | — | — | County |
| 16 Jun 2015 | Flash Flood | — | $5K | — | — | — | County |
| 16 Jun 2015 | Flash Flood | — | $5K | — | — | — | County |
| 9 Apr 2015 | Flash Flood | — | $10K | — | — | — | County |
| 9 Apr 2015 | Flash Flood | — | $15K | — | — | — | County |
| 9 Apr 2015 | Flash Flood | — | $25K | — | — | — | County |
| 9 Apr 2015 | Flash Flood | — | $15K | — | — | — | County |
| 9 Apr 2015 | Flash Flood | — | $2K | — | — | — | County |
| 20 Aug 2014 | Flash Flood | — | $25K | — | — | — | County |
| 21 Feb 2014 | Flood | — | $5K | — | — | — | County |
| 19 Jun 2011 | Flash Flood | — | $40K | — | — | — | County |
| 10 Mar 2011 | Flood | — | $8K | — | — | — | County |
| 19 Mar 2008 | Flood | — | $5K | — | — | — | County |
| 19 Mar 2008 | Flood | — | $5K | — | — | — | County |
| 23 Mar 2007 | Flash Flood | — | — | — | — | — | County |
| 15 Mar 2007 | Flood | — | — | — | — | — | County |
| 2 Jan 2006 | Flash Flood | — | — | — | — | — | County |
| 2 Jan 2006 | Flash Flood | — | — | — | — | — | County |
| 5 Jan 2005 | Flood | — | $50K | — | — | — | Forecast zone |
| 17 Sep 2004 | Flood | — | $605K | — | — | — | Forecast zone |
| 8 Sep 2004 | Flood | — | $50K | — | — | — | Forecast zone |
| 15 Jun 2004 | Flash Flood | — | $100K | — | — | — | County |
| 6 Feb 2004 | Flood | — | — | — | — | — | Forecast zone |
| 4 Jan 2004 | Flood | — | — | — | — | — | Forecast zone |
| 19 Nov 2003 | Flash Flood | — | — | — | — | — | County |
| 3 Sep 2003 | Flash Flood | — | — | — | — | — | County |
| 9 Aug 2003 | Flash Flood | — | — | — | — | — | County |
| 31 Jan 2001 | Flash Flood | — | — | — | — | — | County |
| 28 May 2000 | Flash Flood | — | — | — | — | — | County |
| 4 Apr 2000 | Flash Flood | — | — | — | — | — | County |
| 3 Apr 2000 | Flash Flood | — | — | — | — | — | County |
| 28 Jun 1998 | Flash Flood | — | $100K | $5.0M | — | — | County |
| 28 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 27 Jun 1998 | Flash Flood | — | — | — | — | — | County |
| 7 Jan 1998 | Flash Flood | — | — | — | — | — | County |
| 25 May 1997 | Flash Flood | — | $4K | — | — | — | County |
| 9 May 1996 | Flash Flood | — | $10K | — | — | — | County |
| 20 Feb 1996 | Flash Flood | — | — | — | — | — | County |
| 19 Jan 1996 | Flash Flood | — | — | — | — | — | County |
Questions and answers
How many flood events has Harrison County had?
55 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Harrison County?
24 May 2026 (Flash Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Harrison County?
The flash flood of 28 Jun 1998, with property damage estimated by NCEI at $100K and crop damage at $5.0M.
How does Harrison County compare with Ohio for flood?
13.7 events per 100 square miles against 16.6 statewide; the county holds 55 of the state's 6,794 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 Flood hub and the county page.