Alert archive / Wyoming / 2025
Weather alerts in Wyoming, September 2025
108 weather alerts in September 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in September 2025. Tap one for its archive.
- Alerts
- 108
- Warnings
- 17
- Watches
- 2
- Advisories
- 3
- Busiest day
- September 15, 202528 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 3:10 AM MDT | Dense Fog Advisory | UNR | Crook | 6 hr |
| Sep 4, 1:05 AM MDT | High Wind Warning | RIW | Johnson | 17 hr |
| Sep 5, 12:50 PM MDT | Frost Advisory | UNR | Campbell, Crook, Weston | 18 hr |
| Sep 7, 3:20 PM MDT | Special Weather Statement | RIW | Lincoln | 25 min |
| Sep 7, 6:55 PM MDT | Special Weather Statement | RIW | Fremont | 35 min |
| Sep 9, 3:00 PM MDT | Special Weather Statement | SLC | Uinta | 30 min |
| Sep 9, 6:08 PM MDT | Special Weather Statement | CYS | Laramie | 37 min |
| Sep 9, 8:14 PM MDT | Special Weather Statement | RIW | Big Horn | 46 min |
| Sep 10, 11:27 AM MDT | Special Weather Statement | CYS | Albany | 48 min |
| Sep 10, 4:23 PM MDT | Special Weather Statement | CYS | Niobrara | 37 min |
| Sep 10, 5:58 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 32 min |
| Sep 10, 8:09 PM MDT | Special Weather Statement | CYS | Niobrara | 36 min |
| Sep 10, 8:29 PM MDT | Special Weather Statement | UNR | Weston | 31 min |
| Sep 10, 9:04 PM MDT | Special Weather Statement | UNR | Weston | 26 min |
| Sep 10, 9:16 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 15 min |
| Sep 10, 10:06 PM MDT | Special Weather Statement | CYS | Goshen | 24 min |
| Sep 10, 10:08 PM MDT | Special Weather Statement | RIW | Fremont | 37 min |
| Sep 10, 10:14 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 31 min |
| Sep 10, 11:49 PM MDT | Special Weather Statement | RIW | Fremont | 26 min |
| Sep 11, 3:19 AM MDT | Special Weather Statement | RIW | Fremont | 26 min |
| Sep 11, 1:37 PM MDT | Special Weather Statement | RIW | Teton | 23 min |
| Sep 11, 2:47 PM MDT | Mesoscale Discussion | SPC | Goshen, Laramie | 118 min |
| Sep 11, 3:14 PM MDT | Special Weather Statement | CYS | Laramie | 31 min |
| Sep 11, 3:31 PM MDT | Special Weather Statement | RIW | Fremont | 29 min |
| Sep 11, 3:41 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 34 min |
| Sep 11, 5:18 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 27 min |
| Sep 11, 5:20 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 25 min |
| Sep 11, 9:26 PM MDT | Special Weather Statement | UNR | Campbell | 34 min |
| Sep 11, 9:51 PM MDT | Special Weather Statement | UNR | Campbell | 39 min |
| Sep 12, 9:03 AM MDT | Special Weather Statement | BYZ | Sheridan | 42 min |
| Sep 12, 9:41 AM MDT | Special Weather Statement | BYZ | Sheridan | 49 min |
| Sep 12, 12:14 PM MDT | Special Weather Statement | RIW | Sheridan | 31 min |
| Sep 12, 12:21 PM MDT | Special Weather Statement | BYZ | Sheridan | 24 min |
| Sep 12, 12:45 PM MDT | Special Weather Statement | BYZ | Sheridan | 45 min |
| Sep 12, 1:16 PM MDT | Special Weather Statement | CYS | Carbon | 29 min |
| Sep 12, 1:32 PM MDT | Mesoscale Discussion | SPC | Campbell, Crook, Johnson, Sheridan, Weston | 2 hr |
| Sep 12, 1:51 PM MDT | Special Weather Statement | RIW | Sheridan | 9 min |
| Sep 12, 1:54 PM MDT | Special Weather Statement | BYZ | Sheridan | 51 min |
| Sep 12, 3:25 PM MDT | Special Weather Statement | RIW | Sheridan | 35 min |
| Sep 12, 3:28 PM MDT | Special Weather Statement | BYZ | Sheridan | 32 min |
| Sep 12, 3:55 PM MDT | Special Weather Statement | UNR | Weston | 35 min |
| Sep 12, 4:01 PM MDT | Special Weather Statement | BYZ | Sheridan | 59 min |
| Sep 12, 4:03 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 57 min |
| Sep 12, 4:22 PM MDT | Special Weather Statement | RIW | Johnson | 23 min |
| Sep 12, 4:33 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 27 min |
| Sep 12, 4:39 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 43 min |
| Sep 12, 4:46 PM MDT | Special Weather Statement | CYS | Niobrara | 29 min |
| Sep 12, 4:58 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 11 min |
| Sep 12, 5:01 PM MDT | Mesoscale Discussion | SPC | Campbell, Crook, Johnson, Weston | 2 hr |
| Sep 12, 5:12 PM MDT | Special Weather Statement | CYS | Niobrara | 33 min |
| Sep 12, 5:16 PM MDT | Special Weather Statement | UNR | Weston | 29 min |
| Sep 12, 5:30 PM MDT | Special Weather Statement | RIW | Washakie | 30 min |
| Sep 12, 5:41 PM MDT | Special Weather Statement | UNR | Weston | 34 min |
| Sep 12, 5:42 PM MDT | Severe Thunderstorm Warning | RIW | Washakie | 33 min |
| Sep 12, 6:08 PM MDT | Special Weather Statement | RIW | Washakie | 37 min |
| Sep 12, 7:55 PM MDT | Special Weather Statement | UNR | Crook | 35 min |
| Sep 13, 6:58 PM MDT | Special Weather Statement | UNR | Crook | 32 min |
| Sep 15, 10:45 AM MDT | Freeze Warning | RIW | Fremont, Lincoln, Sublette, Sweetwater, Teton | 20 hr |
| Sep 15, 12:13 PM MDT | Special Weather Statement | RIW | Sublette | 32 min |
| Sep 15, 12:37 PM MDT | Special Weather Statement | RIW | Sublette | 23 min |
| Sep 15, 1:04 PM MDT | Special Weather Statement | RIW | Fremont | 26 min |
| Sep 15, 1:22 PM MDT | Special Weather Statement | RIW | Sublette | 23 min |
| Sep 15, 1:44 PM MDT | Special Weather Statement | RIW | Sublette | 31 min |
| Sep 15, 1:58 PM MDT | Special Weather Statement | RIW | 32 min | |
| Sep 15, 2:01 PM MDT | Special Weather Statement | RIW | Sublette | 29 min |
| Sep 15, 2:02 PM MDT | Special Weather Statement | RIW | Washakie | 28 min |
| Sep 15, 2:46 PM MDT | Special Weather Statement | CYS | Converse | 29 min |
| Sep 15, 2:50 PM MDT | Special Weather Statement | CYS | Carbon | 40 min |
| Sep 15, 3:33 PM MDT | Mesoscale Discussion | SPC | Campbell, Converse, Crook, Fremont, Hot Springs, Johnson and 4 more | 117 min |
| Sep 15, 3:34 PM MDT | Special Weather Statement | RIW | Johnson | 26 min |
| Sep 15, 3:46 PM MDT | Special Weather Statement | CYS | Converse | 44 min |
| Sep 15, 3:49 PM MDT | Special Weather Statement | RIW | Natrona | 26 min |
| Sep 15, 3:58 PM MDT | Special Weather Statement | RIW | Johnson | 32 min |
| Sep 15, 4:05 PM MDT | Special Weather Statement | RIW | Natrona | 25 min |
| Sep 15, 4:11 PM MDT | Special Weather Statement | RIW | Natrona | 34 min |
| Sep 15, 4:18 PM MDT | Special Weather Statement | CYS | Converse | 42 min |
| Sep 15, 4:26 PM MDT | Special Weather Statement | RIW | Johnson | 34 min |
| Sep 15, 4:39 PM MDT | Special Weather Statement | RIW | Natrona | 36 min |
| Sep 15, 4:59 PM MDT | Special Weather Statement | CYS | Converse | 46 min |
| Sep 15, 5:07 PM MDT | Special Weather Statement | CYS | Goshen | 53 min |
| Sep 15, 5:12 PM MDT | Special Weather Statement | UNR | Campbell | 48 min |
| Sep 15, 5:17 PM MDT | Special Weather Statement | UNR | Weston | 43 min |
| Sep 15, 5:19 PM MDT | Special Weather Statement | CYS | Niobrara | 41 min |
| Sep 15, 5:39 PM MDT | Special Weather Statement | CYS | Converse | 51 min |
| Sep 15, 5:45 PM MDT | Special Weather Statement | UNR | Crook | 45 min |
| Sep 15, 6:03 PM MDT | Special Weather Statement | CYS | Niobrara | 42 min |
| Sep 15, 6:06 PM MDT | Severe Thunderstorm Warning | UNR | Crook, Weston | 39 min |
| Sep 15, 6:57 PM MDT | Special Weather Statement | RIW | Washakie | 33 min |
| Sep 15, 7:02 PM MDT | Special Weather Statement | UNR | Crook | 13 min |
| Sep 15, 7:11 PM MDT | Special Weather Statement | CYS | Carbon | 34 min |
| Sep 15, 8:12 PM MDT | Special Weather Statement | CYS | Carbon | 33 min |
| Sep 16, 8:23 AM MDT | Special Weather Statement | CYS | Albany | 52 min |
| Sep 16, 3:21 PM MDT | Special Weather Statement | CYS | Albany | 39 min |
| Sep 16, 3:50 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Laramie | 25 min |
| Sep 16, 4:15 PM MDT | Special Weather Statement | CYS | Albany | 45 min |
| Sep 16, 5:00 PM MDT | Special Weather Statement | CYS | Platte | 45 min |
| Sep 21, 3:28 PM MDT | Special Weather Statement | RIW | Fremont | 32 min |
| Sep 21, 3:33 PM MDT | Special Weather Statement | RIW | Fremont | 27 min |
| Sep 21, 4:08 PM MDT | Special Weather Statement | RIW | Fremont | 37 min |
| Sep 21, 5:32 PM MDT | Special Weather Statement | CYS | Carbon | 43 min |
| Sep 21, 6:13 PM MDT | Special Weather Statement | CYS | Albany | 32 min |
| Sep 22, 1:22 AM MDT | Freeze Watch | RIW | Lincoln, Teton | 12 hr |
| Sep 22, 1:11 PM MDT | Freeze Warning | RIW | Lincoln, Teton | 19 hr |
| Sep 22, 2:01 PM MDT | Winter Weather Advisory | CYS | Albany, Carbon | 28 hr |
| Sep 22, 3:57 PM MDT | Special Weather Statement | CYS | Laramie | 33 min |
| Sep 23, 1:55 AM MDT | Freeze Watch | CYS | Albany, Carbon | 11 hr |
| Sep 23, 12:47 PM MDT | Freeze Warning | CYS | Albany, Carbon | 20 hr |
| Sep 29, 4:08 PM MDT | Special Weather Statement | CYS | Laramie | 37 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 13 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 82 |
| Winter | |
| Winter Weather Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Weston County14
- Fremont County13
- Sheridan County11
- Crook County10
- Johnson County10
- Albany County9
- Laramie County8
- Carbon County8
- Campbell County7
- Niobrara County7
- Washakie County6
- Sublette County6
- Converse County6
- Natrona County5
- Lincoln County4
- Goshen County4
- Teton County4
- Uinta County1
- Big Horn County1
- Sweetwater County1
- Hot Springs County1
- Platte County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.