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Tornado in Pierce County, Wisconsin
27 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 27 tornado events in Pierce County, Wisconsin, between 1950 and 2026, spread over 23 years.
July is the busiest month, with 12 of the recorded events. The last 20 years account for 11 events against 4 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.5% of the 1,820 tornado events recorded in Wisconsin; its 4.7 per 100 square miles compares with 3.4 statewide.
By rating: 13 at (E)F0, 4 at (E)F1, 7 at (E)F2, 1 at (E)F3, 0 at (E)F4, 0 at (E)F5 and 2 unrated. Tornadoes before 2007 carry the original Fujita rating.
Compared with Wisconsin
| Measure | Pierce County | Wisconsin | US |
|---|---|---|---|
| Tornado events since 1950 | 27 | 1,820 | 81,281 |
| Per 100 square miles | 4.7 | 3.4 | 2.3 |
| Per 10,000 residents | 6.3 | 3.1 | 2.4 |
| Deaths recorded | 0 | 98 | 6,410 |
| Busiest month | July | June | May |
By year
Seasonality
0Feb
0Mar
0Apr
0May
3Jun
5Jul
12Aug
3Sep
3Oct
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 27 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 |
|---|---|---|---|---|---|---|---|
| 29 Aug 2024 | Tornado | EF0 | — | — | — | — | County |
| 29 Aug 2024 | Tornado | EF0 | — | — | — | — | County |
| 18 Jul 2020 | Tornado | EF0 | — | — | — | — | County |
| 20 Sep 2018 | Tornado | EF0 | — | — | — | — | County |
| 20 Sep 2018 | Tornado | EF0 | — | — | — | — | County |
| 28 Jun 2017 | Tornado | EF1 | — | — | — | — | County |
| 5 Jul 2016 | Tornado | EF0 | — | — | — | — | County |
| 7 Jul 2014 | Tornado | EF0 | — | — | — | — | County |
| 14 Jul 2010 | Tornado | EF2 | $500K | — | — | — | County |
| 14 Jul 2010 | Tornado | EF2 | $800K | — | — | — | County |
| 19 Aug 2009 | Tornado | EF0 | — | $10K | — | — | County |
| 11 Jun 2005 | Tornado | F0 | — | — | — | — | County |
| 5 Sep 2004 | Tornado | F0 | — | — | — | — | County |
| 1 May 2001 | Tornado | F0 | — | — | — | — | County |
| 12 Jun 1990 | Tornado | F1 | $250K | — | — | 1 | County |
| 14 Jun 1981 | Tornado | F2 | $250K | — | — | — | County |
| 3 Oct 1979 | Tornado | F2 | $25K | — | — | — | County |
| 18 Jul 1970 | Tornado | F0 | $25K | — | — | — | County |
| 15 Jul 1969 | Tornado | F0 | $3K | — | — | — | County |
| 22 Jul 1967 | Tornado | F2 | $250K | — | — | 3 | County |
| 10 Jul 1966 | Tornado | F1 | $250K | — | — | 2 | County |
| 15 Jul 1965 | Tornado | F1 | — | — | — | — | County |
| 24 May 1958 | Tornado | F3 | $250K | — | — | — | County |
| 22 Jul 1955 | Tornado | — | $3K | — | — | — | County |
| 30 Jul 1954 | Tornado | F2 | — | — | — | — | County |
| 29 Jun 1954 | Tornado | — | $3K | — | — | — | County |
| 10 May 1953 | Tornado | F2 | $2.5M | — | — | — | County |
Questions and answers
How many tornado events has Pierce County had?
27 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 Pierce County?
29 Aug 2024 (Tornado, EF0). Records reach NCEI about 120 days after the month ends.
What was the most damaging tornado event recorded in Pierce County?
The tornado of 10 May 1953, with property damage estimated by NCEI at $2.5M.
How does Pierce County compare with Wisconsin for tornado?
4.7 events per 100 square miles against 3.4 statewide; the county holds 27 of the state's 1,820 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.