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Tornado in Chippewa County, Minnesota
25 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 25 tornado events in Chippewa County, Minnesota, between 1950 and 2026, spread over 15 years.
May is the busiest month, with 8 of the recorded events. The last 20 years account for 15 events against 8 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1% of the 2,433 tornado events recorded in Minnesota; its 4.3 per 100 square miles compares with 3.1 statewide.
By rating: 18 at (E)F0, 7 at (E)F1, 0 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 Minnesota
| Measure | Chippewa County | Minnesota | US |
|---|---|---|---|
| Tornado events since 1950 | 25 | 2,433 | 81,281 |
| Per 100 square miles | 4.3 | 3.1 | 2.3 |
| Per 10,000 residents | 20.2 | 4.3 | 2.4 |
| Deaths recorded | 0 | 101 | 6,410 |
| Busiest month | May | June | May |
By year
Seasonality
0Feb
0Mar
0Apr
3May
8Jun
6Jul
3Aug
2Sep
3Oct
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 25 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 |
|---|---|---|---|---|---|---|---|
| 15 May 2025 | Tornado | EF0 | — | — | — | — | County |
| 15 Jul 2024 | Tornado | EF0 | — | — | — | — | County |
| 28 Aug 2022 | Tornado | EF0 | — | — | — | — | County |
| 30 May 2022 | Tornado | EF0 | — | — | — | — | County |
| 19 Sep 2017 | Tornado | EF0 | — | — | — | — | County |
| 19 Sep 2017 | Tornado | EF1 | — | — | — | — | County |
| 16 May 2015 | Tornado | EF0 | — | — | — | — | County |
| 16 May 2015 | Tornado | EF0 | — | — | — | — | County |
| 16 May 2015 | Tornado | EF0 | — | — | — | — | County |
| 16 May 2015 | Tornado | EF1 | $250K | — | — | — | County |
| 19 Jun 2014 | Tornado | EF0 | — | — | — | — | County |
| 19 Jun 2014 | Tornado | EF0 | — | — | — | — | County |
| 17 Jun 2012 | Tornado | EF0 | — | — | — | — | County |
| 17 Jun 2012 | Tornado | EF0 | — | — | — | — | County |
| 21 Apr 2012 | Tornado | EF0 | $100K | — | — | — | County |
| 12 Sep 2005 | Tornado | F1 | — | — | — | — | County |
| 18 May 2005 | Tornado | F0 | — | — | — | — | County |
| 24 Jun 2003 | Tornado | F0 | — | — | — | — | County |
| 27 Apr 2000 | Tornado | F0 | — | — | — | — | County |
| 27 Apr 2000 | Tornado | F0 | — | — | — | — | County |
| 27 Jul 1999 | Tornado | F1 | — | — | — | — | County |
| 7 May 1993 | Tornado | F1 | $5.0M | — | — | — | County |
| 7 Aug 1988 | Tornado | F1 | $25K | — | — | — | County |
| 26 Jul 1986 | Tornado | F1 | — | — | — | — | County |
| 13 Jun 1968 | Tornado | F0 | $3K | — | — | — | County |
Questions and answers
How many tornado events has Chippewa County had?
25 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 Chippewa County?
15 May 2025 (Tornado, EF0). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Chippewa County?
The tornado of 7 May 1993, with property damage estimated by NCEI at $5.0M.
How does Chippewa County compare with Minnesota for tornado?
4.3 events per 100 square miles against 3.1 statewide; the county holds 25 of the state's 2,433 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.