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Flood in Mitchell County, Iowa
43 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.
Mitchell County, Iowa, has 43 flood events in the NCEI record since 1950, with at least one in 14 different years.
June is the busiest month, with 19 of the recorded events. The last 20 years account for 31 events against 12 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.6% of the 7,383 flood events recorded in Iowa; its 9.2 per 100 square miles compares with 13.2 statewide.
Compared with Iowa
| Measure | Mitchell County | Iowa | US |
|---|---|---|---|
| Flood events since 1950 | 43 | 7,383 | 183,559 |
| Per 100 square miles | 9.2 | 13.2 | 5.2 |
| Per 10,000 residents | 40.7 | 23.1 | 5.5 |
| Deaths recorded | 0 | 18 | 2,961 |
| Busiest month | June | June | June |
By year
Seasonality
0Feb
0Mar
1Apr
1May
6Jun
19Jul
6Aug
4Sep
5Oct
1Nov
0Dec
0
Recorded events
All 43 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 |
|---|---|---|---|---|---|---|---|
| 23 Jun 2024 | Flood | — | — | — | — | — | County |
| 22 Jun 2024 | Flood | — | — | — | — | — | County |
| 14 May 2023 | Flood | — | — | — | — | — | County |
| 28 Aug 2021 | Flood | — | — | — | — | — | County |
| 27 Aug 2021 | Flash Flood | — | $750K | $2.7M | — | — | County |
| 8 Jun 2018 | Flood | — | $2K | — | — | — | County |
| 27 Oct 2016 | Flood | — | — | — | — | — | County |
| 22 Sep 2016 | Flood | — | $2K | — | — | — | County |
| 22 Sep 2016 | Flood | — | — | — | — | — | County |
| 21 Sep 2016 | Flash Flood | — | — | — | — | — | County |
| 24 Aug 2016 | Flood | — | $220K | — | — | — | County |
| 23 Aug 2016 | Flash Flood | — | $50K | — | — | — | County |
| 14 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 14 Jun 2016 | Flash Flood | — | $4K | — | — | — | County |
| 14 Jun 2016 | Flash Flood | — | $5K | — | — | — | County |
| 14 Jun 2016 | Flash Flood | — | — | — | — | — | County |
| 22 Jun 2015 | Flash Flood | — | $200K | — | — | — | County |
| 22 Jun 2015 | Flash Flood | — | $50K | — | — | — | County |
| 17 Jun 2014 | Flood | — | — | — | — | — | County |
| 12 Jun 2013 | Flash Flood | — | — | — | — | — | County |
| 31 May 2013 | Flash Flood | — | — | — | — | — | County |
| 19 May 2013 | Flash Flood | — | $4.5M | $20M | — | — | County |
| 23 Sep 2010 | Flood | — | — | — | — | — | County |
| 23 Jun 2010 | Flood | — | $135K | $45K | — | — | County |
| 11 Mar 2010 | Flood | — | — | — | — | — | County |
| 7 Jul 2008 | Flash Flood | — | — | — | — | — | County |
| 12 Jun 2008 | Flood | — | $10K | — | — | — | County |
| 7 Jun 2008 | Flash Flood | — | $1.0M | $1.5M | — | — | County |
| 7 Jun 2008 | Flood | — | $1.2M | $1.5M | — | — | County |
| 15 Sep 2004 | Flood | — | $12K | $15K | — | — | Forecast zone |
| 5 Jul 2004 | Flash Flood | — | $15K | $15K | — | — | County |
| 22 May 2004 | Flood | — | $35K | $50K | — | — | Forecast zone |
| 21 May 2004 | Flash Flood | — | $45K | $50K | — | — | County |
| 5 Apr 2001 | Flood | — | $15K | — | — | — | Forecast zone |
| 10 Jul 2000 | Flood | — | $35K | $50K | — | — | Forecast zone |
| 2 Jun 2000 | Flood | — | $25K | $50K | — | — | Forecast zone |
| 1 Jun 2000 | Flash Flood | — | $65K | $75K | — | — | County |
| 31 May 2000 | Flash Flood | — | $45K | $25K | — | — | County |
| 20 Jul 1999 | Flash Flood | — | $350K | $120K | — | — | County |
| 19 Jul 1999 | Flash Flood | — | $600K | $350K | — | — | County |
| 19 Jul 1999 | Flood | — | $400K | $150K | — | — | Forecast zone |
Questions and answers
How many flood events has Mitchell County had?
43 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 Mitchell County?
23 Jun 2024 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Mitchell County?
The flash flood of 19 May 2013, with property damage estimated by NCEI at $4.5M and crop damage at $20M.
How does Mitchell County compare with Iowa for flood?
9.2 events per 100 square miles against 13.2 statewide; the county holds 43 of the state's 7,383 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.