Storm History: Slope County, North Dakota
Every storm the National Weather Service has filed in Slope County, North Dakota: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.
The record
- Events
- 391
- Deaths
- 0
- Injuries
- 0
- Damage
- $6.9 million
- Episodes
- 330
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Every year
By kind of event
Counted under the kind that heads each episode.
| Kind of event | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Hail | 100 | 0 | 0 | $1.4 million |
| High Wind | 74 | 0 | 0 | $20,000 |
| Tornado | 49 | 0 | 0 | $113,000 |
| Blizzard | 48 | 0 | 0 | $4.2 million |
| Heavy Snow | 22 | 0 | 0 | |
| Drought | 22 | 0 | 0 | |
| Winter Storm | 21 | 0 | 0 | |
| Thunderstorm Wind | 15 | 0 | 0 | $250,000 |
| Extreme Cold/Wind Chill | 13 | 0 | 0 | |
| Cold/Wind Chill | 8 | 0 | 0 | |
| Flash Flood | 7 | 0 | 0 | |
| Wildfire | 4 | 0 | 0 | $100,000 |
| Winter Weather | 3 | 0 | 0 | |
| Flood | 1 | 0 | 0 | $100,000 |
| Heavy Rain | 1 | 0 | 0 | |
| Excessive Heat | 1 | 0 | 0 | $700,000 |
| Dense Smoke | 1 | 0 | 0 | |
| Dust Storm | 1 | 0 | 0 |
The deadliest
None recorded.
The costliest
Damage within this county, in the dollars of its year.
- Blizzard, January 9, 1997
- Blizzard, April 4, 1997
- Excessive Heat, July 16, 2011
- Hail, July 10, 2016
- Hail, July 20, 2017
- Blizzard, January 24, 2010
- Blizzard, January 4, 1997
- Blizzard, April 19, 2006
- Thunderstorm Wind, August 3, 1996
- Flood, June 6, 2007
- Blizzard, April 30, 2011
- Wildfire, August 24, 2012
- Blizzard, October 4, 2005
- Thunderstorm Wind, May 13, 2007
- Tornado, September 9, 2010
- Hail, August 3, 2019
- Tornado, June 8, 1991
- Tornado, May 23, 1965
- Hail, May 18, 2013
- Hail, July 10, 2017
The largest hail
The largest stone in each episode, which may have fallen in a neighboring county of the same episode.
- Hail, July 17, 2003
- Hail, June 16, 2016
- Hail, July 10, 2016
- Hail, June 15, 2024
- Hail, July 24, 2011
- Flash Flood, July 29, 2011
- Hail, July 20, 1987
- Hail, July 20, 2025
- Hail, July 2, 2019
- Hail, August 3, 2019
- Hail, July 8, 2013
- Flash Flood, August 15, 2011
- Hail, June 30, 2009
- Hail, July 21, 2005
- Hail, July 26, 2025
The strongest tornadoes
Every episode, newest first
- Tornado, June 27, 2026
- Tornado, June 7, 2026
- Dust Storm, May 14, 2026
- Heavy Snow, April 3, 2026
- Heavy Snow, March 14, 2026
- High Wind, March 12, 2026
- High Wind, January 15, 2026
- Blizzard, December 17, 2025
- High Wind, December 9, 2025
- High Wind, October 20, 2025
- Hail, August 7, 2025
- Hail, July 26, 2025
- Hail, July 20, 2025
- Tornado, June 20, 2025
- High Wind, June 16, 2025
- Hail, June 15, 2025
- Drought, June 1, 2025
- High Wind, May 16, 2025
- Drought, May 1, 2025
- Drought, April 1, 2025
- High Wind, March 10, 2025
- Drought, March 1, 2025
- Extreme Cold/Wind Chill, February 16, 2025
- Heavy Snow, February 7, 2025
- Drought, February 1, 2025
- Cold/Wind Chill, January 18, 2025
- Drought, January 1, 2025
- High Wind, December 19, 2024
- Drought, December 1, 2024
- Drought, November 1, 2024
- High Wind, October 5, 2024
- Drought, October 1, 2024
- Thunderstorm Wind, July 13, 2024
- Tornado, June 27, 2024
- Hail, June 22, 2024
- Hail, June 15, 2024
- Heavy Snow, March 24, 2024
- Cold/Wind Chill, January 12, 2024
- Winter Weather, November 25, 2023
- Heavy Snow, October 25, 2023
- High Wind, October 17, 2023
- Hail, July 29, 2023
- Hail, July 11, 2023
- Thunderstorm Wind, June 4, 2023
- Dense Smoke, May 17, 2023
- Blizzard, March 10, 2023
- Blizzard, December 25, 2022
- Blizzard, December 21, 2022
- Blizzard, December 13, 2022
- Blizzard, November 9, 2022
- High Wind, November 5, 2022
- High Wind, October 13, 2022
- High Wind, October 12, 2022
- Flash Flood, July 3, 2022
- Hail, July 2, 2022
- High Wind, June 15, 2022
- High Wind, May 12, 2022
- Blizzard, April 23, 2022
- Blizzard, April 12, 2022
- High Wind, April 5, 2022
- Drought, April 1, 2022
- Drought, March 1, 2022
- Blizzard, February 20, 2022
- Drought, February 1, 2022
- Blizzard, February 1, 2022
- High Wind, January 31, 2022
- Drought, January 1, 2022
- Drought, December 1, 2021
- High Wind, November 16, 2021
- High Wind, November 13, 2021
- High Wind, November 11, 2021
- Drought, November 1, 2021
- Heavy Snow, October 12, 2021
- Drought, October 1, 2021
- Hail, September 2, 2021
- Drought, September 1, 2021
- Drought, August 1, 2021
- Hail, July 8, 2021
- Drought, July 1, 2021
- Drought, June 1, 2021
- Drought, May 1, 2021
- Drought, April 1, 2021
- High Wind, March 29, 2021
- High Wind, February 22, 2021
- Extreme Cold/Wind Chill, February 5, 2021
- High Wind, January 13, 2021
- Blizzard, December 22, 2020
- High Wind, October 14, 2020
- High Wind, September 2, 2020
- Tornado, July 7, 2020
- Thunderstorm Wind, July 4, 2020
- Hail, July 2, 2020
- High Wind, May 9, 2020
- High Wind, April 28, 2020
- High Wind, March 3, 2020
- Heavy Snow, November 29, 2019
- Blizzard, October 9, 2019
- Hail, August 3, 2019
- Thunderstorm Wind, July 14, 2019
- Hail, July 2, 2019
- Hail, June 2, 2019
- Heavy Snow, February 16, 2019
- High Wind, January 27, 2019
- Hail, July 21, 2018
- Hail, July 2, 2018
- Tornado, June 26, 2018
- Heavy Snow, April 12, 2018
- Blizzard, March 5, 2018
- Heavy Snow, February 8, 2018
- High Wind, November 29, 2017
- Hail, July 20, 2017
- Hail, July 10, 2017
- Hail, June 5, 2017
- Blizzard, March 6, 2017
- Heavy Snow, January 2, 2017
- Blizzard, December 25, 2016
- Heavy Snow, November 27, 2016
- High Wind, October 31, 2016
- Hail, July 10, 2016
- Hail, July 6, 2016
- Tornado, June 21, 2016
- Hail, June 16, 2016
- High Wind, April 5, 2016
- High Wind, February 18, 2016
- High Wind, February 6, 2016
- High Wind, November 18, 2015
- Wildfire, October 11, 2015
- High Wind, August 22, 2015
- High Wind, July 28, 2015
- Thunderstorm Wind, July 27, 2015
- Tornado, July 26, 2015
- Tornado, June 30, 2015
- Flash Flood, June 25, 2015
- Thunderstorm Wind, June 23, 2015
- Heavy Snow, April 8, 2015
- Thunderstorm Wind, March 28, 2015
- Heavy Snow, November 9, 2014
- Hail, July 22, 2014
- High Wind, June 30, 2014
- Blizzard, March 31, 2014
- Blizzard, January 25, 2014
- High Wind, January 20, 2014
- High Wind, January 15, 2014
- High Wind, January 13, 2014
- Extreme Cold/Wind Chill, January 4, 2014
- Blizzard, January 3, 2014
- Blizzard, December 9, 2013
- Extreme Cold/Wind Chill, December 6, 2013
- Heavy Snow, December 2, 2013
- Blizzard, October 4, 2013
- Hail, September 7, 2013
- Hail, August 10, 2013
- Hail, July 8, 2013
- Hail, May 18, 2013
- Blizzard, April 14, 2013
- Heavy Snow, April 8, 2013
- Blizzard, March 3, 2013
- Extreme Cold/Wind Chill, January 30, 2013
- High Wind, October 17, 2012
- Wildfire, August 24, 2012
- Hail, June 29, 2012
- Extreme Cold/Wind Chill, January 18, 2012
- High Wind, September 19, 2011
- Hail, August 31, 2011
- Flash Flood, August 15, 2011
- Flash Flood, July 29, 2011
- Hail, July 24, 2011
- Tornado, July 22, 2011
- Excessive Heat, July 16, 2011
- High Wind, May 31, 2011
- Heavy Rain, May 20, 2011
- High Wind, May 16, 2011
- Blizzard, April 30, 2011
- Heavy Snow, April 18, 2011
- Blizzard, March 11, 2011
- Blizzard, February 19, 2011
- High Wind, February 13, 2011
- Extreme Cold/Wind Chill, February 1, 2011
- Extreme Cold/Wind Chill, February 1, 2011
- Extreme Cold/Wind Chill, January 31, 2011
- Blizzard, October 26, 2010
- Tornado, September 9, 2010
- Hail, August 9, 2010
- Tornado, July 26, 2010
- High Wind, June 18, 2010
- High Wind, May 24, 2010
- Heavy Snow, May 6, 2010
- High Wind, May 4, 2010
- High Wind, April 8, 2010
- Winter Weather, March 9, 2010
- Blizzard, January 24, 2010
- Winter Storm, January 18, 2010
- Extreme Cold/Wind Chill, January 6, 2010
- Winter Storm, January 5, 2010
- Blizzard, December 23, 2009
- High Wind, September 27, 2009
- Tornado, July 8, 2009
- Hail, July 5, 2009
- Hail, June 30, 2009
- Tornado, June 26, 2009
- Hail, June 24, 2009
- Flash Flood, June 15, 2009
- High Wind, May 13, 2009
- Blizzard, March 29, 2009
- Flash Flood, March 22, 2009
- Winter Weather, January 16, 2009
- Blizzard, January 11, 2009
- Winter Storm, January 8, 2009
- Extreme Cold/Wind Chill, December 20, 2008
- Extreme Cold/Wind Chill, December 14, 2008
- Blizzard, December 13, 2008
- Blizzard, November 5, 2008
- High Wind, October 26, 2008
- Heavy Snow, October 11, 2008
- Wildfire, July 23, 2008
- High Wind, July 12, 2008
- High Wind, July 11, 2008
- High Wind, March 24, 2008
- Extreme Cold/Wind Chill, January 28, 2008
- High Wind, November 13, 2007
- Tornado, July 9, 2007
- Flood, June 6, 2007
- Thunderstorm Wind, May 13, 2007
- Heavy Snow, April 2, 2007
- Heavy Snow, March 29, 2007
- High Wind, January 8, 2007
- High Wind, September 17, 2006
- Wildfire, July 12, 2006
- Hail, June 30, 2006
- Blizzard, April 19, 2006
- Winter Storm, April 18, 2006
- High Wind, April 18, 2006
- Cold/Wind Chill, February 16, 2006
- Blizzard, October 4, 2005
- Hail, July 21, 2005
- Hail, June 6, 2005
- Hail, May 21, 2005
- High Wind, May 21, 2005
- Winter Storm, May 11, 2005
- High Wind, March 9, 2005
- High Wind, March 6, 2005
- Cold/Wind Chill, January 13, 2005
- High Wind, December 20, 2004
- High Wind, December 11, 2004
- Hail, August 7, 2004
- Hail, July 14, 2004
- High Wind, May 31, 2004
- High Wind, March 13, 2004
- High Wind, March 10, 2004
- Winter Storm, February 28, 2004
Earlier years, state by state:
More
Tornadoes in Slope CountyEvery warning in Slope County since 1986Every county in North Dakota
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.