Alert archive / Wyoming / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Wyoming, 2004
117 severe thunderstorm warnings in 2004. 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 in 2004. Tap one for its archive.
- Severe Thunderstorm Warnings
- 117
- Busiest month
- May37 severe thunderstorm warnings
- Busiest day
- May 11, 200413 severe thunderstorm warnings
Over time
By month
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 |
|---|---|---|---|---|
| Mar 26, 5:04 PM MST | Severe Thunderstorm Warning | UNR | Crook | 56 min |
| Mar 26, 5:52 PM MST | Severe Thunderstorm Warning | UNR | Crook | 38 min |
| May 10, 3:45 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 60 min |
| May 10, 4:45 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 30 min |
| May 10, 5:03 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 57 min |
| May 10, 5:10 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 50 min |
| May 10, 5:14 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 61 min |
| May 10, 5:16 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 44 min |
| May 10, 5:35 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 55 min |
| May 10, 6:06 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Laramie | 54 min |
| May 10, 6:30 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 60 min |
| May 10, 6:53 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 52 min |
| May 10, 7:28 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 62 min |
| May 10, 7:35 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 25 min |
| May 10, 7:39 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 21 min |
| May 10, 7:45 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 60 min |
| May 10, 7:46 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 59 min |
| May 10, 8:22 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 53 min |
| May 10, 8:33 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 57 min |
| May 10, 8:36 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 29 min |
| May 10, 9:16 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 59 min |
| May 10, 9:30 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 60 min |
| May 16, 3:29 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 61 min |
| May 16, 3:43 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 62 min |
| May 16, 4:58 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 62 min |
| May 18, 4:19 PM MDT | Severe Thunderstorm Warning | RIW | Big Horn | 56 min |
| May 20, 5:00 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 45 min |
| May 20, 5:40 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 50 min |
| May 21, 12:22 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 38 min |
| May 21, 12:55 PM MDT | Severe Thunderstorm Warning | RIW | Washakie | 65 min |
| May 21, 12:59 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 61 min |
| May 21, 1:46 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 44 min |
| May 21, 1:48 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 42 min |
| May 21, 2:10 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 50 min |
| May 21, 2:21 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 54 min |
| May 21, 2:59 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 46 min |
| May 21, 3:15 PM MDT | Severe Thunderstorm Warning | UNR | Campbell, Crook | 60 min |
| May 22, 12:20 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 55 min |
| May 28, 5:48 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Sweetwater | 57 min |
| Jun 4, 8:41 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 49 min |
| Jun 10, 2:18 PM MDT | Severe Thunderstorm Warning | RIW | Park | 57 min |
| Jun 10, 3:15 PM MDT | Severe Thunderstorm Warning | RIW | Park | 60 min |
| Jun 10, 3:17 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 58 min |
| Jun 18, 5:44 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln | 46 min |
| Jun 18, 8:28 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln | 47 min |
| Jun 19, 2:58 PM MDT | Severe Thunderstorm Warning | RIW | Sweetwater | 62 min |
| Jun 19, 5:30 PM MDT | Severe Thunderstorm Warning | RIW | Sweetwater | 30 min |
| Jun 19, 5:31 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Sublette | 59 min |
| Jun 19, 6:23 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 52 min |
| Jun 19, 7:15 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 60 min |
| Jun 20, 1:10 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 50 min |
| Jun 20, 2:16 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 59 min |
| Jun 20, 2:17 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 58 min |
| Jun 20, 2:19 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 56 min |
| Jun 20, 3:02 PM MDT | Severe Thunderstorm Warning | RIW | Washakie | 43 min |
| Jun 20, 3:25 PM MDT | Severe Thunderstorm Warning | CYS | Albany | 35 min |
| Jun 20, 3:33 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 27 min |
| Jun 20, 3:43 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 32 min |
| Jun 20, 4:12 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 33 min |
| Jun 20, 5:19 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 26 min |
| Jun 20, 6:38 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 22 min |
| Jun 20, 7:00 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 30 min |
| Jun 20, 8:16 PM MDT | Severe Thunderstorm Warning | RIW | Sweetwater | 59 min |
| Jun 20, 9:02 PM MDT | Severe Thunderstorm Warning | RIW | Big Horn, Hot Springs, Washakie | 58 min |
| Jun 22, 5:54 PM MDT | Severe Thunderstorm Warning | RIW | Big Horn, Park | 51 min |
| Jun 23, 5:25 PM MDT | Severe Thunderstorm Warning | RIW | Washakie | 65 min |
| Jun 24, 1:25 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 65 min |
| Jun 24, 4:46 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 59 min |
| Jun 25, 3:45 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 60 min |
| Jun 28, 1:35 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 40 min |
| Jun 30, 5:22 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 53 min |
| Jul 1, 3:41 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 64 min |
| Jul 2, 12:38 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 52 min |
| Jul 7, 3:31 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln | 44 min |
| Jul 7, 5:42 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 33 min |
| Jul 7, 7:00 PM MDT | Severe Thunderstorm Warning | RIW | Sweetwater | 60 min |
| Jul 7, 7:02 PM MDT | Severe Thunderstorm Warning | BYZ | Sheridan | 28 min |
| Jul 8, 2:40 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 50 min |
| Jul 9, 1:48 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Platte | 27 min |
| Jul 9, 2:15 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 45 min |
| Jul 9, 2:36 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 39 min |
| Jul 9, 7:29 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 46 min |
| Jul 9, 8:08 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 37 min |
| Jul 10, 3:10 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 65 min |
| Jul 13, 6:03 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 57 min |
| Jul 13, 7:01 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 44 min |
| Jul 13, 7:07 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 38 min |
| Jul 13, 8:17 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 58 min |
| Jul 14, 12:23 AM MDT | Severe Thunderstorm Warning | CYS | Goshen | 37 min |
| Jul 14, 8:58 PM MDT | Severe Thunderstorm Warning | CYS | Albany | 62 min |
| Jul 14, 9:14 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 61 min |
| Jul 19, 5:09 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 51 min |
| Jul 29, 1:56 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs, Washakie | 49 min |
| Jul 29, 2:12 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 63 min |
| Jul 29, 2:36 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 39 min |
| Jul 29, 2:41 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 49 min |
| Jul 29, 3:31 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Hot Springs | 59 min |
| Jul 29, 4:09 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 51 min |
| Jul 29, 5:43 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 47 min |
| Jul 29, 6:31 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 44 min |
| Jul 29, 6:39 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 36 min |
| Aug 3, 2:53 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 67 min |
| Aug 3, 3:44 PM MDT | Severe Thunderstorm Warning | RIW | Big Horn, Washakie | 46 min |
| Aug 3, 5:10 PM MDT | Severe Thunderstorm Warning | RIW | Big Horn | 35 min |
| Aug 3, 6:25 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 50 min |
| Aug 3, 8:19 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 41 min |
| Aug 4, 6:04 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 41 min |
| Aug 4, 6:06 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 54 min |
| Aug 4, 6:18 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 72 min |
| Aug 5, 5:45 PM MDT | Severe Thunderstorm Warning | RIW | Park | 60 min |
| Aug 5, 7:30 PM MDT | Severe Thunderstorm Warning | RIW | Lincoln, Sublette, Teton | 60 min |
| Aug 25, 5:51 PM MDT | Severe Thunderstorm Warning | RIW | Teton | 39 min |
| Sep 3, 7:16 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 44 min |
| Sep 18, 12:22 PM MDT | Severe Thunderstorm Warning | RIW | Teton | 23 min |
| Sep 19, 4:46 PM MDT | Severe Thunderstorm Warning | UNR | Crook | 44 min |
| Sep 27, 4:02 PM MDT | Severe Thunderstorm Warning | CYS | Albany | 28 min |
| Sep 27, 5:12 PM MDT | Severe Thunderstorm Warning | CYS | Albany | 48 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County11
- Crook County9
- Platte County9
- Campbell County9
- Laramie County8
- Niobrara County8
- Johnson County7
- Sheridan County7
- Weston County7
- Hot Springs County6
- Washakie County6
- Big Horn County5
- Natrona County5
- Sweetwater County5
- Albany County5
- Park County4
- Lincoln County4
- Goshen County4
- Converse County3
- Uinta County3
- Teton County3
- Sublette County2
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20032005
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.