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Tornado History

Clarke Tornado History

This county-level tornado history page focuses on Clarke, Iowa. The records below identify 19 tornadoes from 1964 through 2024, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $2.5M, with 0 deaths and 0 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes19
Total Deaths0
Total Injuries0
Property Damage$2.5M
Avg Length5.4 mi
Avg Width128 yd

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Key Tornado Facts for Clarke, Iowa

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

Average 0.3 tornadoes per year (0.4/yr in last decade)
June is the peak tornado month with 8 recorded events
Deadliest tornado: F2 in Clarke, Iowa with 0 deaths
2008 was the most active year with 4 tornadoes
The 2000s had the most tornado activity (5 events)
Longest tornado: 12.8 miles in Clarke, Iowa
Widest tornado: 400.0 yards in Clarke, Iowa
Most tornadoes in one day: 2 on Jun 14, 1980

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 Clarke, Iowa, June is the most active month with 8 tornadoes.

Annual Tornado Trend

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

4320

Summary: 2008 was the most active year with 4 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
F2
EF2

Summary: F2 tornadoes are the most common in this group, with 6 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.

$750K$75K$8K$0

Summary: The highest reported property damage year in this group is 2024 with at least $750K in NOAA-listed property damage.

Historical Track Sketch

EF2 April 26, 20242024F2 June 22, 19641964F2 June 9, 19671967F2 May 7, 19751975F2 July 13, 19861986F2 April 11, 20012001F2 April 19, 19731973F1 June 14, 19801980F1 June 14, 19801980EF1 May 6, 20242024EF1 May 30, 20082008EF1 October 8, 20182018F1 June 7, 19811981EF1 June 5, 20082008EF1 May 25, 2008EF0 May 6, 2024EF0 March 27, 2014F0 June 16, 1973EF0 June 4, 2008© 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
April 26, 2024EF2Clarke, Iowa5.84 mi75 yd00$400K
June 22, 1964F2Clarke, Iowa12.8 mi400 yd00$250K
June 9, 1967F2Clarke, Iowa7.8 mi300 yd00$250K
May 7, 1975F2Clarke, Iowa10 mi33 yd00$250K
July 13, 1986F2Clarke, Iowa1 mi50 yd00$250K
April 11, 2001F2Clarke, Iowa10 mi150 yd00$125K
April 19, 1973F2Clarke, Iowa2 mi400 yd00$25K
June 14, 1980F1Clarke, Iowa3.6 mi33 yd00$250K
June 14, 1980F1Clarke, Iowa3.6 mi33 yd00$250K
May 6, 2024EF1Clarke, Iowa6.16 mi80 yd00$250K
May 30, 2008EF1Clarke, Iowa9.07 mi150 yd00$50K
October 8, 2018EF1Clarke, Iowa4.92 mi250 yd00$15K

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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.