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Tornado History

Delta Tornado History

This county-level tornado history page focuses on Delta, Michigan. The records below identify 9 tornadoes from 1968 through 2020, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $2.8M, with 0 deaths and 2 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes9
Total Deaths0
Total Injuries2
Property Damage$2.8M
Avg Length6.3 mi
Avg Width64 yd

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Key Tornado Facts for Delta, Michigan

Top local patterns from the historical tornado records in this group.

Average 0.2 tornadoes per year (0.1/yr in last decade)
July is the peak tornado month with 5 recorded events
Deadliest tornado: F1 in Delta, Michigan with 0 deaths
1968 was the most active year with 1 tornadoes
The 1970s had the most tornado activity (2 events)
Longest tornado: 42 miles in Delta, Michigan
Widest tornado: 200.0 yards in Delta, Michigan
Most tornadoes in one day: 1 on Aug 16, 1968

Monthly Distribution

Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.

January
February
March
April
May
June
July
August
September
October
November
December

Summary: In Delta, Michigan, July is the most active month with 5 tornadoes.

Annual Tornado Trend

Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.

10

Summary: 1968 was the most active year with 1 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
F2
F3

Summary: F1 tornadoes are the most common in this group, with 3 recorded events.

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.

$2.5M$250K$25K$0

Summary: The highest reported property damage year in this group is 1992 with at least $2.5M in NOAA-listed property damage.

Historical Track Sketch

F3 July 11, 19871987F2 July 19, 19921992EF1 August 31, 20202020F1 August 16, 19681968F1 July 14, 19741974F1 June 25, 19981998EF0 July 25, 20082008F0 July 27, 19731973F0 May 30, 20022002© OpenStreetMap contributors

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.

DateRatingAreaLengthWidthDeathsInjuriesMin. property damage
July 11, 1987F3Delta, Michigan42 mi150 yd00$25K
July 19, 1992F2Delta, Michigan0.2 mi10 yd02$2.5M
August 31, 2020EF1Delta, Michigan0.61 mi200 yd00$150K
August 16, 1968F1Delta, Michigan0.5 mi33 yd00$25K
July 14, 1974F1Delta, Michigan5.2 mi27 yd00$25K
June 25, 1998F1Delta, Michigan1 mi50 yd00$25K
July 25, 2008EF0Delta, Michigan0.09 mi50 yd00$10K
July 27, 1973F0Delta, Michigan0 mi33 yd00N/A
May 30, 2002F0Delta, Michigan1 mi20 yd00N/A

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Source And Limits

Data source: NOAA/NCEI. TornadoTrace summarizes historical records for screening and research. Coordinates, damage estimates, narratives, and event details can be approximate, incomplete, revised, or missing. Do not use this page as legal, insurance, engineering, real estate, emergency management, or safety advice.