Tornado History
Shiawassee Tornado History
This county-level tornado history page focuses on Shiawassee, Michigan. The records below identify 35 tornadoes from 1956 through 2026, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $17.9M, with 0 deaths and 16 injuries recorded across the listed events.
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Key Tornado Statistics
Key Tornado Facts for Shiawassee, Michigan
Top local patterns from the historical tornado records in this group.
Average 0.5 tornadoes per year (0.6/yr in last decade)
August is the peak tornado month with 10 recorded events
Deadliest tornado: F1 in Shiawassee, Michigan with 0 deaths
1991 was the most active year with 3 tornadoes
The 1970s had the most tornado activity (8 events)
Longest tornado: 21.9 miles in Shiawassee, Michigan
Widest tornado: 700.0 yards in Shiawassee, Michigan
Most tornadoes in one day: 3 on Aug 17, 1991
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Shiawassee, Michigan, August is the most active month with 10 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1991 was the most active year with 3 recorded tornadoes.
Property Damage Trends
Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.
Summary: The highest reported property damage year in this group is 2019 with at least $9.8M in NOAA-listed property damage.
Historical Track Sketch
This map covers the wider location—not your exact property.Measure the closest recorded track to a street address in or near Shiawassee, Michigan.
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Notable Tornado Records
The table highlights the strongest and most damaging records in this page's local dataset. Damage totals are NOAA-reported minimum estimates where available.
| Date | Rating | Area | Length | Width | Deaths | Injuries | Min. property damage |
|---|---|---|---|---|---|---|---|
| April 11, 1965 | F4 | Shiawassee, Michigan | 6.5 mi | 100 yd | 0 | 0 | $250K |
| March 14, 2019 | EF2 | Shiawassee, Michigan | 18.2 mi | 700 yd | 0 | 0 | $9.8M |
| April 21, 1976 | F2 | Shiawassee, Michigan | 3 mi | 83 yd | 0 | 1 | $2.5M |
| April 28, 1986 | F2 | Shiawassee, Michigan | 18.4 mi | 40 yd | 0 | 0 | $2.5M |
| April 16, 1967 | F2 | Shiawassee, Michigan | 0.3 mi | 20 yd | 0 | 1 | $250K |
| August 19, 1978 | F2 | Shiawassee, Michigan | 2 mi | 230 yd | 0 | 8 | $250K |
| August 29, 1975 | F2 | Shiawassee, Michigan | 1.5 mi | 83 yd | 0 | 0 | $25K |
| September 21, 1957 | F2 | Shiawassee, Michigan | 21.9 mi | 33 yd | 0 | 0 | $2K |
| August 11, 2023 | EF1 | Shiawassee, Michigan | 3.04 mi | 430 yd | 0 | 0 | $1.0M |
| October 18, 2007 | EF1 | Shiawassee, Michigan | 2 mi | 100 yd | 0 | 1 | $400K |
| May 12, 1956 | F1 | Shiawassee, Michigan | 2 mi | 33 yd | 0 | 1 | $250K |
| June 2, 1971 | F1 | Shiawassee, Michigan | 15.8 mi | 27 yd | 0 | 3 | $250K |
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Source And Limits
Data sourced from NOAA Storm Prediction Center and the NCEI Storm Events Database. TornadoTrace summarizes reported weather events for screening and research; it is not a damage assessment, inspection, or insurance determination. Coordinates and records can be approximate, incomplete, revised, or missing. No warranty of completeness or accuracy.