Alert archive / Wyoming / 2021
Weather alerts in Wyoming, May 2021
203 weather alerts in May 2021, 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 May 2021. Tap one for its archive.
- Alerts
- 203
- Warnings
- 26
- Watches
- 6
- Advisories
- 14
- Busiest day
- May 26, 202133 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 |
|---|---|---|---|---|
| May 1, 1:52 PM MDT | Winter Storm Watch | CYS | Albany, Carbon | 14 hr |
| May 1, 5:41 PM MDT | Special Weather Statement | CYS | Carbon | 34 min |
| May 1, 5:54 PM MDT | Special Weather Statement | CYS | Platte | 36 min |
| May 1, 6:29 PM MDT | Special Weather Statement | CYS | Niobrara | 46 min |
| May 1, 7:09 PM MDT | Special Weather Statement | RIW | Natrona | 36 min |
| May 1, 7:20 PM MDT | Special Weather Statement | RIW | Teton | 25 min |
| May 2, 3:10 AM MDT | Winter Weather Advisory | RIW | Fremont, Sublette | 33 hr |
| May 2, 3:38 AM MDT | Winter Storm Warning | CYS | Albany, Carbon | 35 hr |
| May 2, 3:38 AM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Laramie | 35 hr |
| May 2, 2:19 PM MDT | Special Weather Statement | CYS | Albany | 26 min |
| May 2, 2:46 PM MDT | Special Weather Statement | CYS | Albany | 44 min |
| May 2, 3:27 PM MDT | Special Weather Statement | CYS | Albany | 33 min |
| May 2, 3:45 PM MDT | Special Weather Statement | CYS | Albany | 45 min |
| May 2, 3:59 PM MDT | Special Weather Statement | CYS | Carbon | 46 min |
| May 2, 4:03 PM MDT | Special Weather Statement | CYS | Albany | 42 min |
| May 3, 2:29 PM MDT | Winter Weather Advisory | CYS | Albany, Carbon | 6 hr |
| May 4, 1:43 PM MDT | Special Weather Statement | CYS | Goshen | 32 min |
| May 4, 1:49 PM MDT | Special Weather Statement | CYS | Laramie | 26 min |
| May 4, 2:18 PM MDT | Special Weather Statement | CYS | Laramie | 42 min |
| May 4, 3:23 PM MDT | Special Weather Statement | CYS | Laramie | 37 min |
| May 4, 4:04 PM MDT | Special Weather Statement | CYS | Laramie | 41 min |
| May 4, 4:45 PM MDT | Special Weather Statement | CYS | Albany | 45 min |
| May 4, 6:29 PM MDT | Special Weather Statement | RIW | Fremont | 31 min |
| May 4, 6:37 PM MDT | Special Weather Statement | CYS | Laramie | 38 min |
| May 5, 4:08 PM MDT | Special Weather Statement | CYS | Laramie | 37 min |
| May 7, 5:46 PM MDT | Special Weather Statement | UNR | Campbell | 44 min |
| May 7, 7:38 PM MDT | Special Weather Statement | RIW | Sublette | 37 min |
| May 7, 11:16 PM MDT | Special Weather Statement | RIW | Sheridan | 29 min |
| May 8, 4:15 AM MDT | High Wind Warning | CYS | Albany, Carbon | 8 hr |
| May 8, 1:23 PM MDT | Winter Storm Watch | CYS | Albany, Laramie | 24 hr |
| May 9, 1:28 PM MDT | Winter Storm Warning | CYS | Albany, Carbon, Laramie | 47 hr |
| May 9, 1:28 PM MDT | Winter Weather Advisory | CYS | Albany, Carbon, Converse, Laramie, Platte | 47 hr |
| May 12, 10:52 AM MDT | Special Weather Statement | CYS | Platte | 38 min |
| May 13, 3:56 PM MDT | Special Weather Statement | CYS | Niobrara | 49 min |
| May 13, 6:20 PM MDT | Special Weather Statement | UNR | Crook | 40 min |
| May 14, 1:56 PM MDT | Mesoscale Discussion | SPC | Laramie | 2 hr |
| May 14, 2:03 PM MDT | Special Weather Statement | CYS | Laramie | 27 min |
| May 14, 4:37 PM MDT | Special Weather Statement | RIW | 23 min | |
| May 14, 4:50 PM MDT | Special Weather Statement | CYS | Laramie | 40 min |
| May 14, 5:13 PM MDT | Special Weather Statement | RIW | 32 min | |
| May 14, 5:58 PM MDT | Special Weather Statement | RIW | Natrona | 32 min |
| May 14, 6:23 PM MDT | Special Weather Statement | CYS | Laramie | 37 min |
| May 14, 6:28 PM MDT | Special Weather Statement | RIW | Natrona | 32 min |
| May 15, 1:03 PM MDT | Special Weather Statement | SLC | Uinta | 42 min |
| May 15, 1:18 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 27 min |
| May 15, 1:32 PM MDT | Special Weather Statement | SLC | Uinta | 43 min |
| May 15, 1:44 PM MDT | Special Weather Statement | SLC | Uinta | 46 min |
| May 15, 1:54 PM MDT | Mesoscale Discussion | SPC | Lincoln, Sublette, Sweetwater, Uinta | 96 min |
| May 15, 2:20 PM MDT | Special Weather Statement | RIW | 25 min | |
| May 15, 2:30 PM MDT | Special Weather Statement | SLC | Uinta | 45 min |
| May 15, 2:42 PM MDT | Special Weather Statement | RIW | Lincoln | 33 min |
| May 15, 2:47 PM MDT | Special Weather Statement | RIW | 28 min | |
| May 15, 3:08 PM MDT | Special Weather Statement | RIW | Lincoln | 37 min |
| May 15, 3:19 PM MDT | Special Weather Statement | RIW | Sublette | 26 min |
| May 15, 4:18 PM MDT | Special Weather Statement | RIW | 27 min | |
| May 15, 4:37 PM MDT | Special Weather Statement | CYS | Platte | 53 min |
| May 15, 4:46 PM MDT | Special Weather Statement | CYS | Carbon | 59 min |
| May 15, 5:23 PM MDT | Special Weather Statement | RIW | 37 min | |
| May 15, 5:44 PM MDT | Special Weather Statement | RIW | Sweetwater | 31 min |
| May 15, 5:56 PM MDT | Special Weather Statement | RIW | Sweetwater | 34 min |
| May 15, 6:03 PM MDT | Special Weather Statement | CYS | Carbon | 57 min |
| May 15, 6:19 PM MDT | Special Weather Statement | CYS | Carbon | 56 min |
| May 15, 6:26 PM MDT | Special Weather Statement | RIW | 34 min | |
| May 15, 6:30 PM MDT | Special Weather Statement | RIW | 30 min | |
| May 15, 6:41 PM MDT | Mesoscale Discussion | SPC | Albany, Carbon, Converse, Goshen, Laramie, Natrona and 1 more | 2 hr |
| May 15, 6:59 PM MDT | Special Weather Statement | RIW | 31 min | |
| May 16, 12:52 PM MDT | Areal Flood Advisory | CYS | Albany | 3 hr |
| May 16, 1:49 PM MDT | Special Weather Statement | RIW | Sweetwater | 26 min |
| May 16, 2:11 PM MDT | Special Weather Statement | RIW | Sweetwater | 34 min |
| May 16, 2:18 PM MDT | Special Weather Statement | RIW | Sweetwater | 27 min |
| May 16, 2:39 PM MDT | Special Weather Statement | RIW | Sweetwater | 36 min |
| May 16, 2:41 PM MDT | Special Weather Statement | RIW | Sweetwater | 34 min |
| May 16, 2:55 PM MDT | Areal Flood Advisory | RIW | Sweetwater | 3 hr |
| May 16, 3:14 PM MDT | Special Weather Statement | RIW | Sweetwater | 31 min |
| May 16, 3:44 PM MDT | Special Weather Statement | RIW | Sweetwater | 31 min |
| May 16, 4:15 PM MDT | Special Weather Statement | RIW | 30 min | |
| May 16, 4:42 PM MDT | Special Weather Statement | CYS | 33 min | |
| May 16, 5:11 PM MDT | Special Weather Statement | CYS | Carbon | 34 min |
| May 16, 5:24 PM MDT | Areal Flood Advisory | RIW | Sweetwater | 3 hr |
| May 16, 5:26 PM MDT | Severe Thunderstorm Warning | CYS | Carbon | 49 min |
| May 16, 5:39 PM MDT | Special Weather Statement | RIW | 36 min | |
| May 16, 6:10 PM MDT | Special Weather Statement | RIW | 35 min | |
| May 16, 9:46 PM MDT | Special Weather Statement | RIW | Lincoln | 29 min |
| May 17, 5:36 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 5 hr |
| May 17, 1:34 PM MDT | Special Weather Statement | CYS | Laramie | 26 min |
| May 17, 1:48 PM MDT | Areal Flood Advisory | CYS | Albany, Carbon | 3 hr |
| May 17, 2:05 PM MDT | Flash Flood Warning | CYS | Albany, Carbon | 2 hr |
| May 17, 4:11 PM MDT | Special Weather Statement | RIW | Sweetwater | 34 min |
| May 17, 4:40 PM MDT | Special Weather Statement | RIW | Sweetwater | 35 min |
| May 17, 4:47 PM MDT | Special Weather Statement | CYS | Laramie | 28 min |
| May 17, 5:19 PM MDT | Special Weather Statement | RIW | Lincoln | 26 min |
| May 17, 5:22 PM MDT | Special Weather Statement | CYS | 38 min | |
| May 17, 6:17 PM MDT | Special Weather Statement | RIW | 28 min | |
| May 17, 6:52 PM MDT | Special Weather Statement | RIW | Fremont | 23 min |
| May 17, 7:46 PM MDT | Special Weather Statement | RIW | 29 min | |
| May 18, 4:32 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 89 min |
| May 18, 6:49 PM MDT | Special Weather Statement | UNR | Weston | 26 min |
| May 18, 7:31 PM MDT | Special Weather Statement | UNR | Weston | 29 min |
| May 19, 4:43 PM MDT | Special Weather Statement | RIW | Hot Springs | 32 min |
| May 19, 5:14 PM MDT | Special Weather Statement | RIW | Hot Springs | 31 min |
| May 19, 5:27 PM MDT | Special Weather Statement | RIW | Fremont | 33 min |
| May 19, 5:47 PM MDT | Special Weather Statement | RIW | Hot Springs | 28 min |
| May 19, 5:50 PM MDT | Special Weather Statement | RIW | Fremont | 25 min |
| May 19, 6:15 PM MDT | Special Weather Statement | RIW | 30 min | |
| May 19, 6:17 PM MDT | Special Weather Statement | RIW | 28 min | |
| May 19, 6:20 PM MDT | Special Weather Statement | RIW | Big Horn | 25 min |
| May 19, 6:44 PM MDT | Special Weather Statement | RIW | 31 min | |
| May 19, 7:17 PM MDT | Special Weather Statement | RIW | 28 min | |
| May 19, 7:47 PM MDT | Special Weather Statement | RIW | 28 min | |
| May 19, 9:43 PM MDT | Special Weather Statement | RIW | Johnson | 32 min |
| May 19, 9:58 PM MDT | Special Weather Statement | RIW | Johnson | 32 min |
| May 19, 10:34 PM MDT | Special Weather Statement | RIW | Johnson | 26 min |
| May 19, 11:07 PM MDT | Special Weather Statement | RIW | Johnson | 23 min |
| May 20, 12:58 PM MDT | Mesoscale Discussion | SPC | Campbell, Converse, Crook, Goshen, Laramie, Niobrara and 2 more | 3 hr |
| May 20, 1:51 PM MDT | Special Weather Statement | CYS | Goshen | 24 min |
| May 20, 2:03 PM MDT | Special Weather Statement | CYS | Converse | 27 min |
| May 20, 2:15 PM MDT | Special Weather Statement | CYS | Platte | 30 min |
| May 20, 2:23 PM MDT | Special Weather Statement | RIW | Johnson | 22 min |
| May 20, 2:30 PM MDT | Special Weather Statement | CYS | Converse | 45 min |
| May 20, 2:46 PM MDT | Special Weather Statement | RIW | Washakie | 29 min |
| May 20, 2:57 PM MDT | Special Weather Statement | CYS | Goshen | 48 min |
| May 20, 2:58 PM MDT | Special Weather Statement | RIW | Johnson | 32 min |
| May 20, 3:16 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 30 min |
| May 20, 3:49 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 29 min |
| May 20, 3:57 PM MDT | Severe Thunderstorm Warning | UNR | Campbell | 19 min |
| May 20, 4:15 PM MDT | Special Weather Statement | UNR | Weston | 30 min |
| May 20, 5:22 PM MDT | Special Weather Statement | RIW | Johnson | 23 min |
| May 20, 5:35 PM MDT | Special Weather Statement | CYS | Laramie | 40 min |
| May 20, 5:50 PM MDT | Special Weather Statement | UNR | Crook | 25 min |
| May 20, 6:43 PM MDT | Special Weather Statement | UNR | Crook | 47 min |
| May 20, 7:07 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 38 min |
| May 20, 7:27 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Niobrara, Platte | 35 min |
| May 21, 2:52 PM MDT | Mesoscale Discussion | SPC | Sublette, Teton | 2 hr |
| May 21, 7:07 PM MDT | Special Weather Statement | CYS | Goshen | 38 min |
| May 22, 1:20 PM MDT | High Wind Watch | RIW | Fremont, Johnson, Natrona, Sweetwater | 13 hr |
| May 22, 1:20 PM MDT | High Wind Warning | RIW | Fremont, Johnson, Natrona, Sweetwater | 31 hr |
| May 22, 3:46 PM MDT | Special Weather Statement | CYS | Laramie | 44 min |
| May 22, 5:36 PM MDT | High Wind Warning | CYS | Albany, Carbon | 3 hr |
| May 23, 12:54 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 7 hr |
| May 23, 2:04 AM MDT | High Wind Warning | CYS | Albany, Carbon | 18 hr |
| May 23, 10:53 AM MDT | Mesoscale Discussion | SPC | Goshen, Laramie, Niobrara, Platte | 2 hr |
| May 23, 12:06 PM MDT | Tornado Watch | SPC | Goshen, Laramie, Niobrara | 8 hr |
| May 23, 12:21 PM MDT | Special Weather Statement | RIW | 39 min | |
| May 23, 1:18 PM MDT | Special Weather Statement | CYS | Laramie | 42 min |
| May 23, 1:28 PM MDT | Special Weather Statement | CYS | Platte | 47 min |
| May 23, 1:35 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 29 min |
| May 23, 1:50 PM MDT | Tornado Watch | SPC | Crook, Weston | 7 hr |
| May 23, 1:59 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Niobrara, Platte | 19 min |
| May 23, 2:03 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie | 42 min |
| May 23, 2:38 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 24 min |
| May 23, 3:22 PM MDT | Areal Flood Advisory | CYS | Laramie | 3 hr |
| May 23, 5:25 PM MDT | Mesoscale Discussion | SPC | Niobrara | 95 min |
| May 26, 9:54 AM MDT | Special Weather Statement | RIW | Fremont | 36 min |
| May 26, 10:22 AM MDT | Special Weather Statement | RIW | Hot Springs | 23 min |
| May 26, 11:03 AM MDT | Special Weather Statement | RIW | Fremont | 27 min |
| May 26, 11:21 AM MDT | Special Weather Statement | RIW | Fremont | 24 min |
| May 26, 11:45 AM MDT | Mesoscale Discussion | SPC | Converse, Goshen, Laramie, Niobrara, Platte | 2 hr |
| May 26, 11:46 AM MDT | Special Weather Statement | RIW | Fremont | 29 min |
| May 26, 12:30 PM MDT | Special Weather Statement | RIW | 30 min | |
| May 26, 12:46 PM MDT | Special Weather Statement | RIW | Johnson | 29 min |
| May 26, 1:24 PM MDT | Special Weather Statement | RIW | 21 min | |
| May 26, 1:27 PM MDT | Severe Thunderstorm Watch | SPC | Campbell, Converse, Goshen, Laramie, Niobrara, Platte and 1 more | 8 hr |
| May 26, 1:53 PM MDT | Special Weather Statement | RIW | Johnson | 37 min |
| May 26, 2:30 PM MDT | Special Weather Statement | RIW | Johnson | 30 min |
| May 26, 2:33 PM MDT | Special Weather Statement | RIW | Natrona | 27 min |
| May 26, 2:41 PM MDT | Special Weather Statement | RIW | Washakie | 34 min |
| May 26, 2:48 PM MDT | Special Weather Statement | RIW | Washakie | 27 min |
| May 26, 2:54 PM MDT | Tornado Warning | RIW | Washakie | 23 min |
| May 26, 2:54 PM MDT | Special Weather Statement | UNR | Campbell | 36 min |
| May 26, 3:14 PM MDT | Special Weather Statement | UNR | Campbell | 31 min |
| May 26, 3:18 PM MDT | Special Weather Statement | RIW | Washakie | 27 min |
| May 26, 3:27 PM MDT | Severe Thunderstorm Warning | UNR | Campbell, Crook, Weston | 63 min |
| May 26, 3:28 PM MDT | Special Weather Statement | CYS | Goshen | 47 min |
| May 26, 3:47 PM MDT | Special Weather Statement | RIW | Washakie | 28 min |
| May 26, 3:51 PM MDT | Special Weather Statement | CYS | Goshen | 24 min |
| May 26, 3:58 PM MDT | Special Weather Statement | UNR | Weston | 47 min |
| May 26, 4:07 PM MDT | Special Weather Statement | CYS | Goshen | 23 min |
| May 26, 4:11 PM MDT | Special Weather Statement | RIW | Johnson | 34 min |
| May 26, 4:14 PM MDT | Special Weather Statement | CYS | Niobrara | 46 min |
| May 26, 4:21 PM MDT | Special Weather Statement | RIW | Teton | 24 min |
| May 26, 4:29 PM MDT | Severe Thunderstorm Warning | UNR | Crook, Weston | 46 min |
| May 26, 4:30 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 25 min |
| May 26, 5:02 PM MDT | Special Weather Statement | CYS | Niobrara | 28 min |
| May 26, 5:10 PM MDT | Special Weather Statement | CYS | Laramie | 35 min |
| May 26, 5:30 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 34 min |
| May 28, 3:16 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 3 hr |
| May 28, 3:15 PM MDT | Special Weather Statement | RIW | 30 min | |
| May 28, 3:55 PM MDT | Mesoscale Discussion | SPC | Sheridan | 2 hr |
| May 28, 6:58 PM MDT | Special Weather Statement | CYS | Niobrara | 47 min |
| May 28, 8:42 PM MDT | Special Weather Statement | UNR | Crook | 33 min |
| May 28, 8:44 PM MDT | Special Weather Statement | CYS | Niobrara | 46 min |
| May 28, 9:04 PM MDT | Special Weather Statement | UNR | Crook | 26 min |
| May 28, 9:05 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 40 min |
| May 28, 9:15 PM MDT | Areal Flood Advisory | CYS | Niobrara | 72 min |
| May 28, 9:21 PM MDT | Special Weather Statement | CYS | Laramie | 24 min |
| May 29, 1:37 PM MDT | Special Weather Statement | CYS | Laramie | 38 min |
| May 29, 2:06 PM MDT | Special Weather Statement | CYS | Laramie | 24 min |
| May 29, 2:17 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 28 min |
| May 29, 5:55 PM MDT | Special Weather Statement | CYS | Platte | 35 min |
| May 29, 6:02 PM MDT | Special Weather Statement | CYS | Goshen | 43 min |
| May 29, 6:17 PM MDT | Special Weather Statement | CYS | Platte | 43 min |
| May 29, 6:39 PM MDT | Special Weather Statement | CYS | Goshen | 36 min |
| May 29, 6:46 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 29 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 | 18 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 148 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Laramie County37
- Albany County24
- Goshen County22
- Carbon County19
- Niobrara County17
- Platte County16
- Sweetwater County16
- Johnson County15
- Fremont County11
- Crook County9
- Weston County9
- Natrona County7
- Campbell County7
- Converse County7
- Uinta County6
- Washakie County6
- Sublette County5
- Lincoln County5
- Hot Springs County4
- Teton County3
- Sheridan County2
- Big Horn County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.