Hail in Wyoming
Every hail event the National Weather Service has filed in Wyoming, year by year, with the most significant episodes. Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
The most significant on the map
The most significant hail episodes in Wyoming.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 4,924
- Deaths
- 0
- Injuries
- 14
- Damage
- $132 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Tornado and Flash Flood in Wyoming, August 12, 2005A tornado touched down 1 mile north of Wright and traveled southeast into the town.
- Tornadoes and Hail in Wyoming, July 21, 1987
- Tornado and Hail in Wyoming, July 12, 1965
- Tornadoes and Hail in Wyoming, June 1, 2018A supercell thunderstorm tracked east-northeast across central Campbell County. As the storm approached Gillette, it produced multiple tornadoes. A storm survey, along with photos and video, determined that four tornadoes occurred just west and north of Gillette.
- Tornadoes and Hail in Wyoming, June 25, 1975
- Tornadoes and Hail in Wyoming, June 12, 2017One of the most significant severe weather episodes to affect southeast Wyoming and the western Nebraska Panhandle occurred on the afternoon and early evening of Monday 12 June 2017. Eleven confirmed tornadoes, hail to grapefruit size, and damaging winds were observed.
- Tornadoes and Hail in Wyoming, July 28, 2018Thunderstorms produced large hail, damaging winds and a couple tornadoes over portions of Converse and Platte counties.
- Tornadoes and Hail in Wyoming, June 6 to 7, 2018Thunderstorms generated large hail over parts of Niobrara and Goshen counties in addition to a well photogenic tornadic supercell over Albany County. Two tornadoes, the parent and a satellite, were confirmed by photos from storm chasers and official NWS Storm Survey.
- Tornado and Hail in Wyoming, July 13, 2009A supercell thunderstorm developed over northern Campbell County and moved southeastward across Crook County. The storm produced very large hail across western Crook County, which caused significant damage in the New Haven and Hulett areas.
- Hail and Damaging Wind in Wyoming, August 2, 2013A thunderstorm developed in the Gillette area and quickly became severe. The storm produced heavy rain over part of town and large hail and strong wind gusts east of Gillette.
- Tornadoes and Hail in Wyoming, June 13, 1984
- Tornadoes and Flash Flood in Wyoming, May 22, 2008Severe thunderstorms moved generally north northwest over parts of far southeast Wyoming producing a few tornadoes as well as hail and some flooding. The most significant tornado tracked across southeastern Albany county into northern and eastern parts of the city of Laramie.
- Flash Flood and Hail in Wyoming, July 22, 2008A severe thunderstorm clipped far northern portions of Campbell and Crook Counties with hail to golf ball size and heavy rain. Three to six inches of rain fell from near Weston to the Wyoming/Montana border.
- Hail in Wyoming, May 26, 2010A severe thunderstorm produced hail to around golf ball size in Gillette, causing extensive damage across the city. The storm moved generally from south to north through the city.
- Tornadoes and Flash Flooding in Wyoming, May 18, 2010Southeast low level wind flow increased ahead of a low pressure system over northern Colorado the afternoon of May 18 2010. A strong low level southeast jet combined with dynamics of the low to create a favorable environment for severe thunderstorms.
- Tornado and Hail in Wyoming, July 4, 1978
- Tornadoes and Hail in Wyoming, June 7, 1986
- Tornadoes and Hail in Wyoming, June 23, 2023An intense, long-lived supercell initially developed near the town of Chugwater over the higher terrain of the central Laramie Range around 3:00 PM on 6/23, tracking to the east-southeast across southern Platte and Goshen Counties through approximately 7:00 PM.
- Hail in Wyoming, August 26, 2002Hail from 1 inch up to 2.75 inches in diameter fell over mainly the central and western parts of the city of Cheyenne, WY. Significant damage was reported to automobiles and roofs.
- Hail and Damaging Winds in Wyoming, June 18, 2008Thunderstorms firing over the higher terrain of central Wyoming strengthened as they moved into a more unstable and moist environment in Johnson and Natrona counties.
- Tornadoes and Hail in Wyoming, June 21, 2003A strong upper-level shortwave moving over northeastern Wyoming produced a long lived supercell thunderstorm. The thunderstorm developed over western Campbell County and moved east across Gillette and continued to Rozet.
- Tornadoes and Hail in Wyoming, June 23, 2023A tornadic thunderstorm developed over far southern Campbell County and tracked east-northeast into Weston County.
- Tornado and Hail in Wyoming, June 13, 2014A severe thunderstorm developed over northern Campbell County and tracked eastward across far northeastern Wyoming. The storm produced hail to golf ball size, strong wind gusts, and a long-track tornado over the Bear Lodge Mountains.
- Tornadoes and Hail in Wyoming, June 23, 2023An upper level low passing over Wyoming combined with a strong jet stream to bring an outbreak of severe thunderstorms. Four tornadoes were reported on this day, the most in one day since June 12, 2017.
- Flash Flood and Hail in Wyoming, August 1, 2013A supercell thunderstorm moved southeastward across southern Campbell County, producing large hail and strong wind gusts. Extensive hail damage occurred in Wright, with many homes and vehicles affected, with the Noonan and Casner subdivisions receiving the most damage.
More
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.