Winter Weather Advisories in Wyoming
2,308 winter weather advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter weather advisories reaches back to 2005.
Winter Weather Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Winter Weather Advisories
- 2,308
- Busiest year
- 2017143 winter weather advisories
- Average year
- 105over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County645
- Sublette County555
- Albany County545
- Carbon County511
- Lincoln County510
- Teton County433
- Park County419
- Natrona County355
- Weston County327
- Crook County323
- Laramie County319
- Hot Springs County295
- Johnson County292
- Washakie County249
- Platte County248
- Sweetwater County244
- Big Horn County237
- Converse County228
- Campbell County219
- Uinta County194
- Niobrara County151
- Goshen County145
- Sheridan County140
The latest winter weather advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 12:55 PM MDT | Winter Weather Advisory | BYZ | Sheridan | 29 hr |
| May 17, 1:50 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Converse, Laramie, Platte | 40 hr |
| May 16, 11:52 AM MDT | Winter Weather Advisory | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 4 more | 54 hr |
| May 16, 11:20 AM MDT | Winter Weather Advisory | BYZ | Sheridan | 49 hr |
| May 16, 11:10 AM MDT | Winter Weather Advisory | SLC | Uinta | 55 hr |
| May 4, 11:44 AM MDT | Winter Weather Advisory | RIW | Fremont, Johnson, Natrona, Sublette, Sweetwater, Washakie | 42 hr |
| May 4, 3:15 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Converse, Laramie, Platte | 54 hr |
| Apr 27, 1:44 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Laramie | 37 hr |
| Apr 25, 11:14 PM MDT | Winter Weather Advisory | RIW | Big Horn, Fremont, Johnson, Natrona, Washakie | 34 hr |
| Apr 25, 10:06 PM MDT | Winter Weather Advisory | BYZ | Sheridan | 38 hr |
| Apr 25, 2:46 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon | 51 hr |
| Apr 22, 1:10 PM MDT | Winter Weather Advisory | BYZ | Sheridan | 50 hr |
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.