Tornadoes, hail, floods and severe storms recorded here between 1960 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
The part of each tornado’s path NOAA recorded in this county, 11 in all. Zoom in and the paths widen to their surveyed width.
Hover or tap a bar to see that year.
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
April 4, 1997 · Slope, North Dakota
January 9, 1997 · Slope, North Dakota
June 27, 2026 · Slope, North Dakota
Amidon NDAWN station reported wind gusts up to 68 mph.
June 27, 2026 · Slope, North Dakota
Sand Creek mesonet station reported wind gusts up to 65 mph.
June 7, 2026 · Slope, North Dakota
Cedar Lake NDAWN reported wind gusts up to 60 mph.
June 7, 2026 · Slope, North Dakota
New England NDAWN station reported wind gusts up to 59 mph.
May 14, 2026 · Slope, North Dakota
NDAWN station 5 W New England reported wind gusts up to 60 mph.
April 3, 2026 · Slope, North Dakota
Slope County received an estimated six inches of snow.
March 14, 2026 · Slope, North Dakota
Slope County received an estimated six inches of snow.
March 12, 2026 · Slope, North Dakota
Sand Creek RAWS reported wind gusts to 81 mph.
January 15, 2026 · Slope, North Dakota
Sand Creek RAWS reported wind gusts to 73 mph.
December 18, 2025 · Slope, North Dakota
Strong winds and snow combined to produce a blizzard.
December 17, 2025 · Slope, North Dakota
Amidon CWOP reported wind gusts to 91 mph.
December 9, 2025 · Slope, North Dakota
Amidon CWOP reported wind gusts to 59 mph.
October 20, 2025 · Slope, North Dakota
Amidon CWOP measured wind gusts to 67 mph.
August 7, 2025 · Slope, North Dakota
August 7, 2025 · Slope, North Dakota
August 7, 2025 · Slope, North Dakota
August 7, 2025 · Slope, North Dakota
July 27, 2025 · Slope, North Dakota
July 20, 2025 · Slope, North Dakota
June 20, 2025 · Slope, North Dakota
Thunderstorm wind gusts were estimated by a trained spotter.
June 16, 2025 · Slope, North Dakota
Slope County had estimated wind gusts of 60 mph.
June 15, 2025 · Slope, North Dakota
June 1, 2025 · Slope, North Dakota
May 16, 2025 · Slope, North Dakota
Sand Creek RAWS reported wind gusts to 61 mph.
May 1, 2025 · Slope, North Dakota
April 1, 2025 · Slope, North Dakota
March 10, 2025 · Slope, North Dakota
Slope County had estimated wind gusts to 60 mph.
March 1, 2025 · Slope, North Dakota
February 16, 2025 · Slope, North Dakota
Minimum wind chill values dropped to between 45 below to around 60 below over most locations.
February 7, 2025 · Slope, North Dakota
Slope County received an estimated six inches of snow.
February 1, 2025 · Slope, North Dakota
January 19, 2025 · Slope, North Dakota
Wind chill values dropped as low as 60 below.
January 1, 2025 · Slope, North Dakota
December 19, 2024 · Slope, North Dakota
Slope County had estimated wind gusts to 60 mph.
December 1, 2024 · Slope, North Dakota
November 1, 2024 · Slope, North Dakota
October 5, 2024 · Slope, North Dakota
Slope County had estimated wind gusts to 60 mph.
October 1, 2024 · Slope, North Dakota
July 13, 2024 · Slope, North Dakota
June 27, 2024 · Slope, North Dakota
June 27, 2024 · Slope, North Dakota
June 27, 2024 · Slope, North Dakota
June 22, 2024 · Slope, North Dakota
June 22, 2024 · Slope, North Dakota
Thunderstorm wind gusts were estimated by the public.
June 15, 2024 · Slope, North Dakota
March 24, 2024 · Slope, North Dakota
Slope County received an estimated six inches of snow.
January 12, 2024 · Slope, North Dakota
Wind chill values dropped to around 70 below.
November 25, 2023 · Slope, North Dakota
A cold front moving through the area produced gusty winds which combined with a narrow band of snow to produce reduced visibility and some snow covered roads which became slippery.