Delta County, Michigan tornadoes
12confirmed tornadoes since NOAA records began in 1950 (the first here in 1968). Most recent: August 31, 2020, EF1. 2026 so far: 2 preliminary reports 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 Delta 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 Delta County.
When tornadoes hit here
By month
July is the peak month, with 7 of 12 tornadoes.
By time of day
Most often around 3:00 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: 2 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 12 tornadoes, newest first
| Date | Rating | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|
| Aug 31, 2020 | EF1 | 0.61 mi | 200 yd | 0 | 0 |
| Jul 25, 2008 | EF0 | 0.09 mi | 50 yd | 0 | 0 |
| May 30, 2002 | F0 | 1 mi | 20 yd | 0 | 0 |
| Jun 25, 1998 | F1 | 1 mi | 50 yd | 0 | 0 |
| Oct 5, 1997 | F1 | 0.1 mi | 50 yd | 0 | 0 |
| Jul 28, 1993 | F0 | 0.5 mi | 10 yd | 0 | 0 |
| Jul 19, 1992 | F2 | 0.2 mi | 10 yd | 0 | 2 |
| Jul 11, 1987 | F3 | 71 mi | 150 yd | 0 | 0 |
| Jul 14, 1974 | F1 | 5.2 mi | 27 yd | 0 | 0 |
| Jul 27, 1973 | F0 | 0.1 mi | 10 yd | 0 | 0 |
| Jul 20, 1972 | F2 | 0.8 mi | 70 yd | 0 | 1 |
| Aug 16, 1968 | F1 | 0.5 mi | 33 yd | 0 | 0 |
2026 preliminary reports not yet confirmed
| Report date | Location | Rating |
|---|---|---|
| Jul 20, 2026 | 8 ESE Gourley | Not yet rated |
| Jun 30, 2026 | 3 SSE Trenary | 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.