Pierce County, North Dakota tornadoes
17confirmed tornadoes since NOAA records began in 1950 (the first here in 1973). Most recent: July 20, 2011, EF1. 2026 so far: 1 preliminary report preliminary
Every tornado path in the county
Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.
Recent warnings in Pierce County
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At a glance
Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Pierce County.
When tornadoes hit here
By month
July is the peak month, with 7 of 17 tornadoes.
By time of day
Most often around 6:00 PM. Times as recorded by NOAA, mostly Central Standard Time.
By year, 1950 to 2025
The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones. This year so far: 1 preliminary reports.
By rating
Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.
Notable tornadoes
All 17 tornadoes, newest first
| Date | Rating | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|
| Jul 20, 2011 | EF1 | 1.25 mi | 50 yd | 0 | 0 |
| Jul 10, 2005 | F0 | n/a | 30 yd | 0 | 0 |
| Jun 19, 2005 | F1 | 3 mi | 75 yd | 0 | 0 |
| May 19, 2004 | F1 | 1 mi | 600 yd | 0 | 0 |
| Jun 20, 2001 | F0 | n/a | 40 yd | 0 | 0 |
| Nov 1, 2000 | F1 | 22 mi | 100 yd | 0 | 0 |
| Jul 4, 2000 | F1 | 3 mi | 50 yd | 0 | 0 |
| May 17, 1998 | F0 | 10 mi | 100 yd | 0 | 0 |
| Jul 24, 1997 | F0 | 0.1 mi | 10 yd | 0 | 0 |
| Jul 1, 1993 | F1 | 0.1 mi | 23 yd | 0 | 0 |
| Jun 6, 1989 | F1 | 0.2 mi | 20 yd | 0 | 0 |
| Jul 4, 1978 | F1 | 5.9 mi | 10 yd | 0 | 0 |
| May 25, 1978 | F1 | 0.2 mi | 10 yd | 0 | 0 |
| Jun 25, 1977 | F0 | 0.1 mi | 10 yd | 0 | 0 |
| Jun 11, 1976 | F1 | 0.1 mi | 10 yd | 0 | 0 |
| Aug 21, 1973 | F2 | 0.1 mi | 10 yd | 0 | 0 |
| Jul 1, 1973 | F1 | 0.1 mi | 10 yd | 0 | 0 |
2026 preliminary reports not yet confirmed
| Report date | Location | Rating |
|---|---|---|
| Jul 16, 2026 | 6 S Wolford | Not yet rated |
Preliminary reports from the Storm Prediction Center. One tornado can be reported more than once, and NOAA confirms the final record months later.
Nearby counties
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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.