Tornado History

Merrimack Tornado History

This county-level tornado history page focuses on Merrimack, New Hampshire. The records below identify 7 tornadoes from 1967 through 2018, including a highest listed rating of EF2 (Considerable damage). NOAA damage estimates in this group total at least $178K, with 0 deaths and 10 injuries recorded across the listed events.

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7recorded tornadoes
EF2 (Considerable damage)highest rating
$178Kminimum property damage
May 4, 2018latest tornado
16.2 milongest listed path
880 ydwidest listed path

Historical Track Sketch

EF2 July 24, 20082008F1 July 12, 19671967F1 May 31, 19721972F1 August 15, 19761976F1 July 6, 19991999EF1 May 4, 20182018EF0 July 30, 20152015© OpenStreetMap contributors

Rating Breakdown

  • EF2 (Considerable damage)1
  • F1 (Moderate damage)4
  • EF1 (Moderate damage)1
  • EF0 (Light damage)1

Most Active Years

  • 19671
  • 19721
  • 19761
  • 19991
  • 20081
  • 20151
  • 20181

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
July 24, 2008EF2Merrimack, New Hampshire5.25 mi880 yd00$153K
July 12, 1967F1Merrimack, New Hampshire0.5 mi30 yd05$25K
May 31, 1972F1Merrimack, New Hampshire0.1 mi50 yd00$250
August 15, 1976F1Merrimack, New Hampshire0 mi33 yd05N/A
July 6, 1999F1Merrimack, New Hampshire1 mi75 yd00N/A
May 4, 2018EF1Merrimack, New Hampshire16.2 mi300 yd00N/A
July 30, 2015EF0Merrimack, New Hampshire0.42 mi100 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.