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Tornado History

Mercer Tornado History

This location page summarizes tornado records that list Mercer, North Dakota as a begin or end location. The dataset includes 7 matching records from 1996 through 2025. The strongest matching rating is F1 (Moderate damage), the latest matching tornado is September 14, 2025, and minimum reported property damage totals $375K.

Key Tornado Statistics

Total Tornadoes7
Total Deaths0
Total Injuries0
Property Damage$375K
Avg Length5.5 mi
Avg Width63 yd

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Key Tornado Facts for Mercer, North Dakota

Top local patterns from the historical tornado records in this group.

Average 0.2 tornadoes per year (0.2/yr in last decade)
July is the peak tornado month with 2 recorded events
Deadliest tornado: F0 in Mercer, North Dakota with 0 deaths
1996 was the most active year with 2 tornadoes
The 2000s had the most tornado activity (3 events)
Longest tornado: 20 miles in Mercer, North Dakota
Widest tornado: 250.0 yards in Mercer, North Dakota
Most tornadoes in one day: 2 on Sep 14, 2025

Monthly Distribution

Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.

January
February
March
April
May
June
July
August
September
October
November
December

Summary: In Mercer, North Dakota, July is the most active month with 2 tornadoes.

Annual Tornado Trend

Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.

20

Summary: 1996 was the most active year with 2 recorded tornadoes.

Tornado Intensity Distribution

Shows the breakdown of tornadoes by EF/F rating.

F0
EF0
F1
EF1
EFU

Summary: F0 tornadoes are the most common in this group, with 3 recorded events.

Property Damage Trends

Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.

$300K$30K$3K$0

Summary: The highest reported property damage year in this group is 2025 with at least $300K in NOAA-listed property damage.

Historical Track Sketch

EF1 September 14, 20252025F1 July 28, 19961996F0 July 17, 19961996F0 November 1, 20002000F0 June 21, 20032003EF0 June 26, 20092009EFU September 14, 20252025© OpenStreetMap contributors

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
September 14, 2025EF1McLean, North Dakota8.69 mi250 yd00$300K
July 28, 1996F1McLean, North Dakota3 mi20 yd00$75K
July 17, 1996F0McLean, North Dakota1 mi20 yd00N/A
November 1, 2000F0McLean, North Dakota20 mi40 yd00N/A
June 21, 2003F0McLean, North Dakota5 mi40 yd00N/A
June 26, 2009EF0McLean, North Dakota0.1 mi20 yd00N/A
September 14, 2025EFUMcLean, North Dakota0.93 mi50 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.