Freezing Fog in Wyoming
Every freezing fog event the National Weather Service has filed in Wyoming, year by year, with the most significant episodes. Fog that froze on contact with roads, vehicles or structures.
The most significant on the map
The most significant freezing fog 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
- 6
- Deaths
- 0
- Injuries
- 0
- Damage
- None recorded
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Freezing Fog in Wyoming, December 27 to 28, 2020Prolonged period of freezing fog across Converse, Goshen, Niobrara, and eastern Platte Counties on the morning of the 28th resulted in area crashes and closures along Interstate 25 particularly between Casper and Wheatland.
- Freezing Fog in Wyoming, March 20, 2020Interstate 80 closed for several hours into the evening and overnight period from a crash shortly after 10 AM MDT near the Lone Tree exit about two miles west of Buford.
- Freezing Fog in Wyoming, March 14 to 15, 2020Central Laramie County experienced freezing fog and mist that resulted in rime ice on power lines, poles, lights, signs, etc. Power outages were reported across Cheyenne from the weight of rime ice downing power lines. At its peak, up to 30,000 residents were without power.
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.