Grand Forks County, North Dakota tornadoes

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93confirmed tornadoes since NOAA records began in 1950 (the first here in 1952). Most recent: August 8, 2025, EF1. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Tornado paths, 1950 to 2025
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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in Grand Forks County

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The record

At a glance

Total931950 to 2025
Per year1.2average since 1950
Peak monthJune42 of 93
StrongestEF4Aug 26, 2007
Deaths1whole paths, see note
Injuries21whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Grand Forks County.

Seasons

When tornadoes hit here

By month

420 Jan: 0Feb: 0Mar: 0Apr: 0May: 9Jun: 42Jul: 20Aug: 22Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 42 of 93 tornadoes.

By time of day

180 12 AM: 0: 0: 83 AM: 3: 0: 06 AM: 1: 0: 09 AM: 1: 1: 112 PM: 6: 0: 23 PM: 18: 16: 116 PM: 9: 5: 59 PM: 2: 0: 412 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

Most often around 3:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

110 1950: 0: 0: 1: 0: 0: 1: 2: 1: 1: 01960: 0: 0: 0: 0: 0: 0: 0: 0: 0: 01970: 0: 0: 0: 0: 0: 0: 0: 0: 2: 11980: 0: 1: 1: 2: 0: 0: 1: 1: 0: 01990: 0: 0: 2: 1: 0: 0: 0: 0: 1: 02000: 3: 3: 0: 0: 8: 4: 0: 4: 0: 32010: 9: 0: 3: 0: 1: 5: 4: 8: 3: 02020: 2: 1: 2: 0: 0: 1119501960197019801990200020102020

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones.

By rating

EF0
54
EF1
28
EF2
7
EF3
2
EF4
2

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

EF4, August 26, 2007

1 deaths, 18 injuries Strongest

EF4, August 26, 2007

5 mile path Longest path

17 miles, EF4

June 17, 2010, whole path Widest

1,400 yards, EF4

August 26, 2007
Every tornado

All 93 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Aug 8, 2025EF14.05 mi400 yd00
Aug 8, 2025EF15.74 mi50 yd00
Aug 8, 2025EF00.13 mi30 yd00
Aug 8, 2025EF00.16 mi20 yd00
Aug 8, 2025EF00.2 mi20 yd00
Aug 8, 2025EF12.05 mi30 yd00
Aug 8, 2025EF14.8 mi70 yd00
Aug 8, 2025EF11.29 mi100 yd00
Aug 8, 2025EF12.99 mi75 yd00
Aug 8, 2025EF02.14 mi20 yd00
Jul 7, 2025EF10.58 mi30 yd00
Jul 22, 2022EF11.18 mi150 yd00
Jun 24, 2022EF02.94 mi100 yd00
Aug 9, 2021EF11.09 mi150 yd00
Jun 8, 2020EF03 mi150 yd00
Jun 8, 2020EF17 mi250 yd00
Jun 29, 2018EF11.82 mi200 yd00
Jun 8, 2018EF01 mi100 yd00
Jun 8, 2018EF00.93 mi100 yd00
Jul 11, 2017EF05.8 mi1,150 yd00
Jul 11, 2017EF15.92 mi150 yd00
Jul 11, 2017EF01 mi100 yd00
Jun 7, 2017EF01.87 mi75 yd00
Jun 7, 2017EF01 mi100 yd00
Jun 7, 2017EF00.58 mi100 yd00
Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.