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Storms That Hit

NHC HURDAT2 · SPC Tornado Database

Hurricanes and Tornadoes That Hit Mahnomen, MN

Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.

Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated

No tropical storm or hurricane has passed within 75 miles of Mahnomen, Minnesota since records began in 1851. Since 1950, 69 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.

Hurricanes
0

within 75 mi, since 1851

Tropical storms
0

below hurricane strength

Tornadoes
69

within 25 mi, since 1950

EF3 or stronger
0

4 deaths in all

What the records show for Mahnomen

The highest rating among the 69 tornadoes within 25 miles is F2 or EF2, reached 8 times; the most recent, on June 24, 2023, came within 3 miles. The deadliest, an F2 on July 5, 1978, killed 4 people. Of the 69, 7 had paths within 5 miles of the city centre, and 41 have come since 2000. June has had the most tornadoes, 31. The most recent tornado was on June 24, 2023. Of the 341 Minnesota cities on this site, 67% have more tornadoes within 25 miles than Mahnomen. Hail has been reported within 10 miles 42 times since 1962, with stones up to 2.75 inches (baseball size). Of the 341 Minnesota cities, 91% have more hail reports within 10 miles than Mahnomen.

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Tornadoes within 25 miles of Mahnomen

By decade

  • 2020s9
  • 2010s18
  • 2000s14
  • 1990s9
  • 1980s6
  • 1970s7
  • 1960s6
Strongest tornadoes near Mahnomen, Minnesota
DateRatingDistancePathKilled / injured
Jul 5, 1978F211 mi57.5 mi4 / 44
Jun 24, 2023EF23 mi6.22 mi0 / 0
Jun 8, 2019EF219 mi3.6 mi0 / 0
Jun 29, 2018EF215 mi15.38 mi0 / 0
Jul 11, 2017EF224 mi12.81 mi0 / 0
Aug 28, 2016EF220 mi9.57 mi0 / 0
Jul 22, 2013EF22 mi21.09 mi0 / 0
Jul 11, 2008EF23 mi16 mi0 / 0
Jun 24, 2022EF111 mi3.82 mi0 / 0
Jun 20, 2022EF112 mi4.87 mi0 / 0
May 24, 2019EF18 mi3.5 mi0 / 0
Aug 26, 2018EF121 mi25.03 mi0 / 0

The strongest 12 of 69, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.

Hail in Mahnomen

The Storm Prediction Center has 42 hail reports within 10 miles of Mahnomen since 1962, made on 32 separate days. Of these, 22 were 1 inch across or larger, and 3 reached 2 inches. The largest, 2.75 inches (baseball size), fell on July 25, 1967. The most recent report is from June 24, 2023. July has the most reports, 13.

Source: NOAA Storm Prediction Center severe weather reports, data through 2025.

Floods, thunderstorm wind and lightning near Mahnomen

Since 1996, the National Weather Service has logged 40 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Mahnomen: 38 thunderstorm wind reports, 1 flash flood and 1 lightning strike. None is recorded as killing or injuring anyone; the NWS estimated $682,000 in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on June 9, 2002.

  • August 26, 2007: lightning strike 10 miles from the centre of Mahnomen — $500,000 damage.

    NWS: “Lightning struck the bell tower of a church in Bejou, igniting a fire in the tower. The fire spread throughout the building, causing a total loss.”

  • May 17, 1996: thunderstorm wind 7 miles from the centre of Mahnomen — $100,000 damage.

Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.

Flood insurance claims, disaster declarations and FEMA risk ratings

Mahnomen County, which includes Mahnomen, has been named in 20 federal disaster or emergency declarations since 1965, 17 of them major disasters (by incident: 8 floods, 8 severe storms, 2 biological emergencies, 1 drought). The latest major disaster declaration was Severe Storms and Flooding, on July 19, 2023. FEMA's National Risk Index gives Mahnomen County a Very Low rating for natural hazard risk overall; by hazard: Relatively Low for hail and strong wind; Very Low for tornadoes, inland flooding, lightning and heat waves. It models the county's expected loss from all 18 hazards it covers at $2.3 million a year, the 87th highest of 87 Minnesota counties; of the hazards above, the largest share, $911,000 (39%), is from inland flooding.

Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

What counts as a pass, the distances and the sources: how this storm history is built.

Cities near Mahnomen

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