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Tornado in Mitchell County, Iowa
18 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 18 tornado events in Mitchell County, Iowa, between 1950 and 2026, spread over 12 years.
June is the busiest month, with 7 of the recorded events. The last 20 years account for 6 events against 7 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 0.5% of the 3,501 tornado events recorded in Iowa; its 3.8 per 100 square miles compares with 6.3 statewide.
By rating: 8 at (E)F0, 7 at (E)F1, 3 at (E)F2, 0 at (E)F3, 0 at (E)F4, 0 at (E)F5. Tornadoes before 2007 carry the original Fujita rating.
Compared with Iowa
| Measure | Mitchell County | Iowa | US |
|---|---|---|---|
| Tornado events since 1950 | 18 | 3,501 | 81,281 |
| Per 100 square miles | 3.8 | 6.3 | 2.3 |
| Per 10,000 residents | 17.1 | 11.0 | 2.4 |
| Deaths recorded | 0 | 100 | 6,410 |
| Busiest month | June | May | May |
By year
Seasonality
0Feb
0Mar
3Apr
3May
2Jun
7Jul
2Aug
1Sep
0Oct
0Nov
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 18 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 |
|---|---|---|---|---|---|---|---|
| 12 Apr 2022 | Tornado | EF0 | $60K | — | — | — | County |
| 12 Apr 2022 | Tornado | EF1 | $110K | — | — | — | County |
| 12 Apr 2022 | Tornado | EF1 | $525K | — | — | — | County |
| 16 Jul 2015 | Tornado | EF0 | $40K | $10K | — | — | County |
| 7 Jun 2008 | Tornado | EF0 | — | — | — | — | County |
| 7 Jun 2008 | Tornado | EF0 | — | $1K | — | — | County |
| 30 Mar 2005 | Tornado | F0 | $15K | — | — | — | County |
| 30 Mar 2005 | Tornado | F0 | $10K | — | — | — | County |
| 16 Jun 2004 | Tornado | F1 | — | — | — | — | County |
| 11 Jun 2004 | Tornado | F1 | $1K | $10K | — | — | County |
| 17 Aug 1994 | Tornado | F0 | — | $5K | — | — | County |
| 31 Jul 1994 | Tornado | F1 | $500K | $5K | — | — | County |
| 24 Mar 1988 | Tornado | F0 | $3K | — | — | — | County |
| 23 May 1981 | Tornado | F2 | $250K | — | — | — | County |
| 3 Jun 1974 | Tornado | F1 | $25K | — | — | — | County |
| 26 Jun 1969 | Tornado | F1 | $25K | — | — | — | County |
| 11 Jun 1966 | Tornado | F2 | $25K | — | — | — | County |
| 23 May 1954 | Tornado | F2 | — | — | — | — | County |
Questions and answers
How many tornado events has Mitchell County had?
18 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 Mitchell County?
12 Apr 2022 (Tornado, EF1). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Mitchell County?
The tornado of 12 Apr 2022, with property damage estimated by NCEI at $525K.
How does Mitchell County compare with Iowa for tornado?
3.8 events per 100 square miles against 6.3 statewide; the county holds 18 of the state's 3,501 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.