Tornado History

Slope Tornado History

This county-level tornado history page focuses on Slope, North Dakota. The records below identify 10 tornadoes from 1960 through 2010, including a highest listed rating of F1 (Moderate damage). NOAA damage estimates in this group total at least $90K, with 0 deaths and 0 injuries recorded across the listed events.

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10recorded tornadoes
F1 (Moderate damage)highest rating
$90Kminimum property damage
September 9, 2010latest tornado
7 milongest listed path
40 ydwidest listed path

Historical Track Sketch

F1 June 8, 19911991EF0 September 9, 20102010F0 June 8, 19911991F0 June 20, 19991999F0 July 17, 19831983F0 July 17, 19831983F0 July 3, 20012001EF0 July 26, 20102010Unknown May 23, 19651965Unknown August 6, 19601960© OpenStreetMap contributors

Rating Breakdown

  • F1 (Moderate damage)1
  • F0 (Light damage)5
  • EF0 (Light damage)2
  • Unknown rating2

Most Active Years

  • 19832
  • 19912
  • 20102
  • 19601
  • 19651
  • 19991
  • 20011

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 8, 1991F1Slope, North Dakota0.1 mi7 yd00$2K
September 9, 2010EF0Slope, North Dakota0.82 mi40 yd00$30K
June 8, 1991F0Slope, North Dakota0.1 mi10 yd00$25K
June 20, 1999F0Slope, North Dakota2 mi25 yd00$5K
July 17, 1983F0Slope, North Dakota0.3 mi10 yd00$30
July 17, 1983F0Slope, North Dakota0.3 mi10 yd00$30
July 3, 2001F0Slope, North Dakota7 mi40 yd00N/A
July 26, 2010EF0Slope, North Dakota5.34 mi30 yd00N/A
May 23, 1965UnknownSlope, North Dakota0 mi33 yd00$25K
August 6, 1960UnknownSlope, North Dakota0 mi33 yd00$2K

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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.