Tornado History

Mercer Tornado History

This county-level tornado history page focuses on Mercer, Pennsylvania. The records below identify 24 tornadoes from 1954 through 2024, including a highest listed rating of F5 (Incredible damage). NOAA damage estimates in this group total at least $30.7M, with 9 deaths and 93 injuries recorded across the listed events.

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24recorded tornadoes
F5 (Incredible damage)highest rating
$30.7Mminimum property damage
August 6, 2024latest tornado
12 milongest listed path
500 ydwidest listed path

Historical Track Sketch

F5 May 31, 19851985F5 May 31, 19851985F4 May 31, 19851985F2 October 3, 19861986F2 November 10, 20022002F2 June 15, 19641964F2 September 30, 19541954F2 June 1, 19541954F1 April 28, 20022002EF1 July 8, 20142014F1 August 2, 19801980EF1 January 8, 20192019EF1 June 16, 20192019EF1 September 22, 20212021F0 April 28, 2002EF0 June 6, 2010F0 September 21, 1992EF0 May 1, 2007EF0 May 31, 2015F0 July 21, 2003Unknown September 24, 1977EFU August 6, 2024Unknown August 8, 1977Unknown May 13, 1978© OpenStreetMap contributors

Rating Breakdown

  • F5 (Incredible damage)2
  • F4 (Devastating damage)1
  • F2 (Considerable damage)5
  • F1 (Moderate damage)2
  • EF1 (Moderate damage)4
  • F0 (Light damage)3
  • EF0 (Light damage)3
  • Unknown rating3
  • Unknown rating1

Most Active Years

  • 19853
  • 20023
  • 19542
  • 19772
  • 20192
  • 19641
  • 19781
  • 19801

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
May 31, 1985F5Mercer, Pennsylvania12 mi450 yd860$250K
May 31, 1985F5Mercer, Pennsylvania2 mi450 yd00$250K
May 31, 1985F4Mercer, Pennsylvania7 mi350 yd05$25.0M
October 3, 1986F2Mercer, Pennsylvania9 mi123 yd00$2.5M
November 10, 2002F2Mercer, Pennsylvania7 mi500 yd119$1.0M
June 15, 1964F2Mercer, Pennsylvania0 mi400 yd04$250K
September 30, 1954F2Mercer, Pennsylvania0 mi33 yd00$25K
June 1, 1954F2Mercer, Pennsylvania0 mi3 yd03$2K
April 28, 2002F1Mercer, Pennsylvania10 mi200 yd00$750K
July 8, 2014EF1Mercer, Pennsylvania2.46 mi150 yd00$75K
August 2, 1980F1Mercer, Pennsylvania2 mi33 yd01$25K
January 8, 2019EF1Mercer, Pennsylvania2.8 mi400 yd00$5K

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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.