Tornadoes · United States · North Dakota
Tornadoes in Cass County, North Dakota
108 tornadoes have crossed Cass County since 1950, 1st of the 53 counties in North Dakota with a tornado on record, an average of 1.4 a year. They have killed 13 people and injured 111. 2 were rated F4 or EF4 and above, 2 at the top of the scale.
The rating scale
Tracks are drawn in the color of the rating. The United States rated tornadoes on Ted Fujita’s F scale until 31 January 2007 and on the Enhanced Fujita scale after it. Both run from 0 to 5, and both rate the damage rather than measure the wind: the speeds are what that damage is taken to imply.
F0 / EF040 to 72 mph on the F scale, 65 to 85 mph on the EF scale
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F1 / EF173 to 112 mph on the F scale, 86 to 110 mph on the EF scale
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
F2 / EF2113 to 157 mph on the F scale, 111 to 135 mph on the EF scale
Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.
F3 / EF3158 to 206 mph on the F scale, 136 to 165 mph on the EF scale
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
F4 / EF4207 to 260 mph on the F scale, 166 to 200 mph on the EF scale
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
F5 / EF5261 to 318 mph on the F scale, over 200 mph on the EF scale
Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.
Unrated
The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.
Now
- Tornadoes
- 108
- Deaths
- 13
- Injuries
- 111
- F4 and above
- 2
- Worst on record
- F5, June 20, 1957
The deadliest in Cass County
The strongest
- F5 Fargo tornado, North Dakota and MinnesotaJune 20, 1957
- EF5 Enderlin tornado, North DakotaJune 20, 2025
- F3, Cass County, North DakotaAugust 30, 1956
- F3, Cass County, North DakotaJune 13, 1950
- F3, Cass County, North DakotaJune 15, 1973
- F2, Cass County, North DakotaMay 5, 1965
- F2, Richland and Cass counties, North DakotaJune 8, 1964
- EF2, Cass County, North DakotaJuly 15, 2007
- EF2, Cass County, North DakotaMay 30, 2011
- F2, Cass County, North DakotaJuly 10, 1960
Every year with a tornado
The 43 years of the 76 in the record with a tornado in Cass County. Each year links to every tornado in North Dakota that year.
| Year | Tornadoes | Deaths | Injuries | Strongest |
|---|---|---|---|---|
| 2025 | 10 | 3 | EF5 | |
| 2021 | 2 | EF0 | ||
| 2018 | 3 | EF0 | ||
| 2014 | 3 | EF1 | ||
| 2011 | 7 | EF2 | ||
| 2010 | 2 | EF1 | ||
| 2008 | 1 | EF0 | ||
| 2007 | 7 | EF2 | ||
| 2006 | 4 | F1 | ||
| 2005 | 5 | F2 | ||
| 2004 | 6 | F2 | ||
| 2002 | 1 | F0 | ||
| 1999 | 1 | F0 | ||
| 1997 | 3 | F0 | ||
| 1996 | 1 | F0 | ||
| 1992 | 3 | F1 | ||
| 1991 | 1 | F0 | ||
| 1990 | 1 | F0 | ||
| 1988 | 3 | F1 | ||
| 1987 | 3 | F1 | ||
| 1986 | 2 | F0 | ||
| 1985 | 1 | F0 | ||
| 1983 | 2 | F1 | ||
| 1981 | 1 | F0 | ||
| 1980 | 1 | F0 | ||
| 1979 | 2 | F0 | ||
| 1977 | 2 | F1 | ||
| 1976 | 6 | F2 | ||
| 1975 | 3 | F0 | ||
| 1973 | 1 | F3 | ||
| 1972 | 1 | F1 | ||
| 1967 | 2 | F0 | ||
| 1966 | 1 | F0 | ||
| 1965 | 4 | F2 | ||
| 1964 | 1 | F2 | ||
| 1960 | 2 | F2 | ||
| 1959 | 1 | F2 | ||
| 1958 | 1 | F1 | ||
| 1957 | 2 | 10 | 103 | F5 |
| 1956 | 2 | 8 | F3 | |
| 1955 | 1 | F1 | ||
| 1953 | 1 | F2 | ||
| 1950 | 1 | F3 |
Every tornado that crossed Cass County
108 tornadoes, newest first.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 20, 2025 | 11:50 PM CDT | EF0 | Cass | 0.7 | 20 | |||
| June 20, 2025 | 11:46 PM CDT | EF0 | Cass | 1.9 | 20 | |||
| June 20, 2025 | 11:45 PM CDT | EF0 | Cass | 0.7 | 10 | |||
| June 20, 2025 | 11:44 PM CDT | EF1 | Cass | 6.9 | 300 | |||
| June 20, 2025 | 11:22 PM CDT | EF2 | Ransom | 6.8 | 1,351 | |||
| June 20, 2025 | 11:04 PM CDT | EF5 | Enderlin tornado | 12.1 | 1,850 | 3 | ||
| June 20, 2025 | 10:41 PM CDT | EF1 | Cass | 12.2 | 800 | |||
| June 20, 2025 | 10:38 PM CDT | EF0 | Cass | 5.8 | 300 | |||
| June 20, 2025 | 10:36 PM CDT | EF0 | Cass | 8.6 | 100 | |||
| May 15, 2025 | 3:08 PM CDT | Unrated | Cass | 0.1 | 20 | |||
| August 20, 2021 | 4:18 PM CDT | EF0 | Cass | 0.4 | 40 | |||
| June 7, 2021 | 9:20 PM CDT | EF0 | Cass | 0.3 | 20 | |||
| June 8, 2018 | 5:21 PM CDT | EF0 | Cass | 0.1 | 25 | |||
| June 8, 2018 | 4:47 PM CDT | EF0 | Cass | 0.1 | 50 | |||
| June 8, 2018 | 4:00 PM CDT | EF0 | Cass | 1.0 | 200 | |||
| September 4, 2014 | 4:17 AM CDT | EF1 | Cass | 11.6 | 250 | |||
| June 5, 2014 | 5:02 PM CDT | EF0 | Cass | 0.1 | 10 | |||
| June 1, 2014 | 6:21 PM CDT | EF0 | Cass | 0.1 | 25 | |||
| July 17, 2011 | 5:23 PM CDT | EF0 | Cass | 0.5 | 15 | |||
| July 4, 2011 | 9:59 PM CDT | EF2 | Cass | 3.0 | 600 | $150,000 | ||
| July 4, 2011 | 9:26 PM CDT | EF0 | Cass | 4.0 | 40 | $5,000 | ||
| May 30, 2011 | 9:03 PM CDT | EF2 | Cass | 7.4 | 600 | $750,000 | ||
| May 30, 2011 | 8:55 PM CDT | EF2 | Cass | 4.0 | 400 | $600,000 | ||
| May 30, 2011 | 8:52 PM CDT | EF1 | Cass | 2.3 | 150 | $250,000 | ||
| May 30, 2011 | 8:46 PM CDT | EF2 | Richland | 4.3 | 600 | $550,000 | ||
| July 27, 2010 | 6:20 AM CDT | EF1 | Cass | 2.8 | 150 | |||
| July 13, 2010 | 6:06 PM CDT | EF1 | Cass | 11.7 | 250 | |||
| June 14, 2008 | 7:32 PM CDT | EF0 | Barnes | 5.1 | 25 | $30,000 | ||
| July 15, 2007 | 9:20 PM CDT | EF2 | Cass | 8.0 | 250 | $2.5 million | ||
| July 15, 2007 | 9:19 PM CDT | EF1 | Cass | 1.5 | 150 | $1.0 million | ||
| July 15, 2007 | 7:25 PM CDT | EF1 | Cass | 10.0 | 200 | $500,000 | ||
| July 15, 2007 | 7:16 PM CDT | EF2 | Cass | 3.0 | 150 | $250,000 | ||
| June 17, 2007 | 4:30 AM CDT | EF0 | Ransom | 2.0 | 50 | |||
| May 30, 2007 | 5:50 PM CDT | EF0 | Cass | 4.8 | 100 | |||
| May 30, 2007 | 5:30 PM CDT | EF1 | Cass | 5.0 | 100 | |||
| August 10, 2006 | 4:18 PM CDT | F0 | Cass | 25.0 | 0 | |||
| August 5, 2006 | 7:33 PM CDT | F1 | Cass | 3.0 | 50 | |||
| June 5, 2006 | 7:35 PM CDT | F0 | Cass | 0.4 | 25 | |||
| May 7, 2006 | 10:40 PM CDT | F0 | Cass | 0.2 | 25 | |||
| September 5, 2005 | 8:00 PM CDT | F1 | Cass | 1.5 | 100 | |||
| September 5, 2005 | 7:50 PM CDT | F2 | Cass | 4.0 | 200 | |||
| June 29, 2005 | 4:40 PM CDT | F0 | Richland | 2.0 | 50 | |||
| May 20, 2005 | 6:05 PM CDT | F0 | Cass | 0.7 | 50 | |||
| May 20, 2005 | 5:19 PM CDT | F1 | Cass | 3.0 | 75 | $10,000 | ||
| July 18, 2004 | 10:00 PM CDT | F0 | Cass | 0.5 | 25 | |||
| July 18, 2004 | 9:33 PM CDT | F2 | Cass | 4.0 | 100 | $500,000 | ||
| July 18, 2004 | 8:58 PM CDT | F0 | Barnes | 1.2 | 25 | |||
| July 10, 2004 | 8:42 AM CDT | F1 | Clay to MN | 2.0 | 50 | |||
| July 10, 2004 | 8:18 AM CDT | F0 | Cass | 7.0 | 25 | |||
| May 19, 2004 | 7:44 PM CDT | F1 | Cass | 1.0 | 50 | |||
| August 28, 2002 | 8:05 PM CDT | F0 | Cass | 0.2 | 25 | |||
| August 22, 1999 | 7:40 PM CDT | F0 | Cass | 0.5 | 0 | |||
| July 26, 1997 | 4:10 PM CDT | F0 | Cass | 0.2 | 23 | |||
| July 26, 1997 | 3:45 PM CDT | F0 | Cass | 0.2 | 23 | |||
| July 26, 1997 | 3:26 PM CDT | F0 | Cass | 0.2 | 23 | |||
| June 5, 1996 | 6:10 PM CDT | F0 | Cass | 0.5 | 20 | |||
| July 9, 1992 | 4:35 PM CDT | F0 | Cass | 0.1 | 10 | |||
| June 22, 1992 | 7:32 PM CDT | F1 | Cass | 0.2 | 73 | $50,000 to $500,000 | ||
| June 22, 1992 | 7:17 PM CDT | F0 | Cass | 0.2 | 73 | $500,000 to $5 million | ||
| June 13, 1991 | 9:48 PM CDT | F0 | Cass | 0.1 | 10 | |||
| June 19, 1990 | 8:24 PM CDT | F0 | Cass | 0.1 | 10 | |||
| July 23, 1988 | 7:30 PM CDT | F1 | Cass | 0.2 | 13 | $50,000 to $500,000 | ||
| July 12, 1988 | 9:55 PM CDT | F0 | Cass | 0.2 | 13 | |||
| July 12, 1988 | 8:56 PM CDT | F0 | Cass | 0.2 | 13 | |||
| August 17, 1987 | 7:30 PM CDT | F0 | Cass | 0.2 | 13 | |||
| July 21, 1987 | 6:50 PM CDT | F0 | Cass | 0.2 | 10 | |||
| July 21, 1987 | 5:20 PM CDT | F1 | Cass | 0.2 | 10 | $5,000 to $50,000 | ||
| July 10, 1986 | 7:24 PM CDT | F0 | Cass | 0.2 | 13 | |||
| July 10, 1986 | 7:03 PM CDT | F0 | Cass | 0.2 | 13 | |||
| May 4, 1985 | 4:00 PM CDT | F0 | Cass | 0.1 | 10 | |||
| August 28, 1983 | 8:03 PM CDT | F1 | Cass | 0.3 | 10 | $50 to $500 | ||
| July 30, 1983 | 6:55 PM CDT | F0 | Cass | 0.3 | 10 | under $50 | ||
| July 10, 1981 | 6:28 PM CDT | F0 | Cass | 2.0 | 27 | |||
| August 6, 1980 | 3:27 PM CDT | F0 | Cass | 0.1 | 10 | |||
| June 28, 1979 | 1:45 PM CDT | F0 | Cass | 0.1 | 10 | $500 to $5,000 | ||
| June 1, 1979 | 5:45 PM CDT | F0 | Cass | 0.1 | 10 | |||
| July 13, 1977 | 7:35 PM CDT | F0 | Cass | 0.1 | 10 | |||
| July 4, 1977 | 7:55 AM CDT | F1 | Cass | 20.7 | 10 | |||
| August 19, 1976 | 5:30 PM CDT | F1 | Cass | 0.3 | 17 | $50,000 to $500,000 | ||
| August 19, 1976 | 5:15 PM CDT | F2 | Cass | 0.3 | 20 | $500 to $5,000 | ||
| August 19, 1976 | 5:00 PM CDT | F1 | Cass | 1.0 | 17 | $5,000 to $50,000 | ||
| August 19, 1976 | 3:55 PM CDT | F1 | Cass | 0.5 | 17 | $50,000 to $500,000 | ||
| August 10, 1976 | 6:15 PM CDT | F1 | Cass | 0.1 | 10 | |||
| May 27, 1976 | 12:55 PM CDT | F1 | Cass | 0.1 | 17 | $50,000 to $500,000 | ||
| August 31, 1975 | 6:48 PM CDT | F0 | Cass | 0.5 | 17 | |||
| July 7, 1975 | 4:30 PM CDT | F0 | Cass | 0.1 | 10 | |||
| May 19, 1975 | 9:06 PM CDT | F0 | Cass | 13.9 | 10 | |||
| June 15, 1973 | 6:30 PM CDT | F3 | Cass | 0.1 | 10 | $50,000 to $500,000 | ||
| May 26, 1972 | 6:35 PM CDT | F1 | Cass | 2.0 | 30 | $5,000 to $50,000 | ||
| July 9, 1967 | 3:19 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| July 9, 1967 | 3:19 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| July 23, 1966 | 3:20 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| July 15, 1965 | 9:50 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| June 27, 1965 | 1:00 PM GMT-5 | F1 | Cass | 0.1 | 10 | $5,000 to $50,000 | ||
| June 26, 1965 | 5:20 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| May 5, 1965 | 6:15 PM GMT-5 | F2 | Cass | 33.8 | 83 | $50,000 to $500,000 | ||
| June 8, 1964 | 7:30 PM GMT-5 | F2 | Richland | 26.9 | 10 | $50,000 to $500,000 | ||
| July 10, 1960 | 4:00 PM GMT-5 | F2 | Cass | 6.9 | 10 | |||
| May 31, 1960 | 10:00 PM GMT-5 | F2 | Cass | 0.1 | 10 | |||
| June 10, 1959 | 10:30 PM GMT-5 | F2 | Cass | 0.1 | 10 | $500 to $5,000 | ||
| August 9, 1958 | 6:00 PM GMT-5 | F1 | Cass | 0.1 | 10 | $500 to $5,000 | ||
| June 20, 1957 | 7:40 PM GMT-5 | F5 | Fargo tornado | 52.4 | 500 | 10 | 103 | $5 million to $50 million |
| June 20, 1957 | 7:30 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| August 30, 1956 | 4:25 PM GMT-5 | F3 | Cass | 5.1 | 60 | 8 | $50,000 to $500,000 | |
| July 7, 1956 | 6:45 PM GMT-5 | F0 | Cass | 0.1 | 10 | |||
| June 30, 1955 | 5:00 PM GMT-5 | F1 | Cass | 0.1 | 10 | $500 to $5,000 | ||
| May 29, 1953 | 12:00 AM GMT-5 | F2 | Cass | 3.6 | 100 | $5,000 to $50,000 | ||
| June 13, 1950 | 12:05 PM GMT-5 | F3 | Cass | 2.0 | 10 | $50,000 to $500,000 |
Nearby
Warnings in force in Cass CountyThe forecast for Cass CountyThe live radar over Cass CountyEvery county in North Dakota
What this means
Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.
Sources
NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.