Severe Thunderstorm Warnings in Wyoming
7,895 severe thunderstorm warnings 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 7,895
- Busiest year
- 2019577 severe thunderstorm warnings
- Average year
- 193over 41 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with 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.
- Laramie County1,337
- Goshen County1,084
- Crook County1,002
- Campbell County927
- Platte County830
- Weston County733
- Niobrara County663
- Converse County518
- Albany County462
- Fremont County441
- Johnson County415
- Natrona County408
- Sheridan County309
- Hot Springs County219
- Washakie County211
- Big Horn County180
- Carbon County163
- Park County150
- Sweetwater County108
- Teton County102
- Uinta County97
- Lincoln County70
- Sublette County69
The latest severe thunderstorm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 6:59 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 31 min |
| Sep 19, 6:37 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 23 min |
| Sep 18, 7:56 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 49 min |
| Sep 18, 6:36 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 39 min |
| Sep 18, 2:31 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 29 min |
| Sep 6, 10:49 PM MDT | Severe Thunderstorm Warning | UNR | Crook, Weston | 56 min |
| Sep 6, 9:17 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara, Platte | 43 min |
| Aug 29, 3:53 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 52 min |
| Aug 29, 3:48 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 42 min |
| Aug 29, 2:53 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Goshen, Niobrara, Platte | 52 min |
| Aug 29, 1:33 PM MDT | Severe Thunderstorm Warning | CYS | Albany | 27 min |
| Aug 29, 1:20 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Carbon | 40 min |
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. Rebuilt daily.