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Tornado History

Black Hawk Tornado History

This county-level tornado history page focuses on Black Hawk, Iowa. The records below identify 38 tornadoes from 1960 through 2020, including a highest listed rating of F4 (Devastating damage). NOAA damage estimates in this group total at least $56.3M, with 2 deaths and 79 injuries recorded across the listed events.

Key Tornado Statistics

Total Tornadoes38
Total Deaths2
Total Injuries79
Property Damage$56.3M
Avg Length3.8 mi
Avg Width142 yd

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Key Tornado Facts for Black Hawk, Iowa

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

Average 0.6 tornadoes per year (0.4/yr in last decade)
June is the peak tornado month with 13 recorded events
Deadliest tornado: F3 in Black Hawk, Iowa with 1 deaths
2001 was the most active year with 7 tornadoes
The 2000s had the most tornado activity (14 events)
Longest tornado: 24.24 miles in Black Hawk, Iowa
Widest tornado: 2,100.0 yards in Black Hawk, Iowa
Most tornadoes in one day: 5 on Jun 1, 2001

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 Black Hawk, Iowa, June is the most active month with 13 tornadoes.

Annual Tornado Trend

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

7530

Summary: 2001 was the most active year with 7 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
F2
EF2
F3
F4
EFU

Summary: F0 tornadoes are the most common in this group, with 13 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.

$25.0M$2.5M$250K$0

Summary: The highest reported property damage year in this group is 1964 with at least $25.0M in NOAA-listed property damage.

Historical Track Sketch

F4 August 26, 19651965F3 May 11, 20002000F3 April 16, 19601960F2 May 7, 19641964EF2 May 25, 20082008F2 May 11, 20002000F2 May 11, 20002000F2 June 12, 19761976F2 June 13, 19761976F2 July 18, 19651965F1 June 16, 19731973F1 May 8, 19881988F1 May 19, 19901990F1 April 11, 20012001F1 May 7, 1964F1 July 18, 1987F1 June 16, 1992F1 June 27, 1966EF0 March 28, 2020F0 April 23, 2001F0 June 27, 1990F0 June 1, 2001F0 June 1, 2001F0 July 14, 1987EF0 October 9, 2018F0 April 18, 2002EF0 August 31, 2014F0 May 7, 1973F0 May 19, 1984F0 June 21, 1985F0 June 1, 2001F0 June 1, 2001F0 June 1, 2001F0 May 21, 2004EF0 June 21, 2007EF0 August 31, 2014EFU March 28, 2020EFU March 28, 2020© 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
August 26, 1965F4Black Hawk, Iowa0 mi200 yd00$2.5M
May 11, 2000F3Black Hawk, Iowa18.5 mi400 yd125$1.8M
April 16, 1960F3Black Hawk, Iowa23.7 mi800 yd15$250K
May 7, 1964F2Black Hawk, Iowa7.1 mi200 yd027$25.0M
May 25, 2008EF2Black Hawk, Iowa24.24 mi2100 yd020$25.0M
May 11, 2000F2Black Hawk, Iowa3.6 mi120 yd00$350K
May 11, 2000F2Black Hawk, Iowa5 mi150 yd00$300K
June 12, 1976F2Black Hawk, Iowa6.9 mi100 yd02$25K
June 13, 1976F2Black Hawk, Iowa14 mi100 yd00$25K
July 18, 1965F2Black Hawk, Iowa0.5 mi50 yd00$250
June 16, 1973F1Black Hawk, Iowa0.5 mi50 yd00$250K
May 8, 1988F1Black Hawk, Iowa1 mi20 yd00$250K

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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.