Tornado History

Walworth Tornado History

This county-level tornado history page focuses on Walworth, South Dakota. The records below identify 25 tornadoes from 1955 through 2025, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $576K, with 0 deaths and 2 injuries recorded across the listed events.

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25recorded tornadoes
F3 (Severe damage)highest rating
$576Kminimum property damage
September 14, 2025latest tornado
21.9 milongest listed path
600 ydwidest listed path

Historical Track Sketch

F3 June 20, 19681968F3 June 20, 19681968F2 June 28, 19611961F2 July 3, 19591959F2 June 18, 19641964EF2 May 22, 20102010F1 July 29, 19701970F1 April 19, 19551955F1 August 6, 19861986F1 August 18, 19731973EF1 May 22, 20102010EF1 September 14, 20252025F0 July 21, 19911991F0 August 22, 19851985EF0 August 10, 2007EF0 June 17, 2007EF0 June 17, 2007EF0 June 17, 2007EF0 June 17, 2007EF0 June 16, 2009EF0 May 22, 2010EF0 July 26, 2011EF0 June 1, 2018Unknown June 15, 1978Unknown June 15, 1978© OpenStreetMap contributors

Rating Breakdown

  • F3 (Severe damage)2
  • F2 (Considerable damage)3
  • EF2 (Considerable damage)1
  • F1 (Moderate damage)4
  • EF1 (Moderate damage)2
  • F0 (Light damage)2
  • EF0 (Light damage)9
  • Unknown rating2

Most Active Years

  • 20075
  • 20103
  • 19682
  • 19782
  • 19551
  • 19591
  • 19611
  • 19641

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
June 20, 1968F3Walworth, South Dakota8.8 mi200 yd00N/A
June 20, 1968F3Walworth, South Dakota0 mi33 yd00N/A
June 28, 1961F2Walworth, South Dakota1 mi33 yd00$250K
July 3, 1959F2Walworth, South Dakota0 mi33 yd00$25K
June 18, 1964F2Walworth, South Dakota21.9 mi200 yd02$25K
May 22, 2010EF2Walworth, South Dakota1.84 mi600 yd00N/A
July 29, 1970F1Walworth, South Dakota0.5 mi50 yd00$25K
April 19, 1955F1Walworth, South Dakota4.6 mi33 yd00$250
August 6, 1986F1Walworth, South Dakota1.5 mi40 yd00$250
August 18, 1973F1Walworth, South Dakota0.4 mi7 yd00N/A
May 22, 2010EF1Walworth, South Dakota0.5 mi100 yd00N/A
September 14, 2025EF1Walworth, South Dakota3.99 mi200 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.