Weather alerts in Wyoming, May 2026

167 weather alerts in May 2026, 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 2026. Tap one for its archive.

Alerts: 167
Warnings: 37
Watches: 12
Advisories: 15
Busiest day: May 13, 202629 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, 3:49 AM MDT	Dense Fog Advisory	CYS	Albany	3 hr
May 2, 2:09 PM MDT	Red Flag Warning	CYS	Converse, Goshen, Niobrara, Platte	6 hr
May 3, 1:52 AM MDT	Red Flag Warning	CYS	Laramie	18 hr
May 3, 2:13 AM MDT	Winter Storm Watch	CYS	Albany, Carbon, Laramie	24 hr
May 3, 9:42 AM MDT	Special Weather Statement	BYZ	Sheridan	48 min
May 3, 1:06 PM MDT	Freeze Watch	RIW	Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 1 more	34 hr
May 3, 1:55 PM MDT	Special Weather Statement	UNR	Weston	65 min
May 3, 2:30 PM MDT	Special Weather Statement	CYS	Niobrara	45 min
May 3, 2:49 PM MDT	Special Weather Statement	CYS	Niobrara	26 min
May 4, 2:41 AM MDT	Winter Storm Watch	CYS	Laramie	10 hr
May 4, 3:15 AM MDT	Winter Storm Warning	CYS	Albany, Carbon, Laramie	54 hr
May 4, 3:15 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Laramie, Platte	54 hr
May 4, 11:44 AM MDT	Winter Weather Advisory	RIW	Fremont, Johnson, Natrona, Sublette, Sweetwater, Washakie	42 hr
May 4, 11:05 PM MDT	Freeze Warning	RIW	Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 1 more	34 hr
May 8, 12:49 PM MDT	Frost Advisory	UNR	Crook, Weston	65 min
May 9, 10:53 AM MDT	Frost Advisory	UNR	Campbell, Crook, Weston	20 hr
May 9, 12:10 PM MDT	Mesoscale Discussion	SPC	Albany, Converse, Goshen, Laramie, Platte	3 hr
May 9, 1:24 PM MDT	Special Weather Statement	RIW		36 min
May 9, 1:42 PM MDT	Special Weather Statement	RIW		33 min
May 9, 1:51 PM MDT	Special Weather Statement	RIW		24 min
May 9, 1:58 PM MDT	Special Weather Statement	BYZ	Sheridan	47 min
May 9, 2:12 PM MDT	Special Weather Statement	RIW	Natrona	33 min
May 9, 2:22 PM MDT	Special Weather Statement	RIW		23 min
May 9, 2:26 PM MDT	Special Weather Statement	CYS		49 min
May 9, 2:43 PM MDT	Severe Thunderstorm Warning	CYS	Carbon	47 min
May 9, 3:19 PM MDT	Special Weather Statement	CYS		56 min
May 9, 3:21 PM MDT	Special Weather Statement	CYS	Carbon	54 min
May 9, 4:21 PM MDT	Severe Thunderstorm Warning	CYS	Albany, Carbon	39 min
May 9, 4:27 PM MDT	Special Weather Statement	CYS	Laramie	48 min
May 9, 4:47 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	43 min
May 9, 4:56 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	34 min
May 9, 5:00 PM MDT	Severe Thunderstorm Warning	CYS	Albany, Laramie, Platte	45 min
May 9, 5:04 PM MDT	Special Weather Statement	BYZ	Sheridan	26 min
May 9, 5:39 PM MDT	Special Weather Statement	CYS	Laramie	36 min
May 9, 6:12 PM MDT	Special Weather Statement	CYS	Laramie	33 min
May 11, 6:13 PM MDT	Special Weather Statement	RIW	Natrona	32 min
May 13, 12:58 AM MDT	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	10 hr
May 13, 10:41 AM MDT	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	31 hr
May 13, 12:48 PM MDT	Mesoscale Discussion	SPC	Lincoln, Sublette, Teton, Uinta	117 min
May 13, 1:52 PM MDT	Severe Thunderstorm Watch	SPC	Fremont, Lincoln, Park, Sublette, Sweetwater, Teton and 1 more	6 hr
May 13, 2:31 PM MDT	Special Weather Statement	SLC	Uinta	44 min
May 13, 2:33 PM MDT	Special Weather Statement	CYS	Goshen	27 min
May 13, 2:41 PM MDT	Special Weather Statement	RIW		34 min
May 13, 2:50 PM MDT	Special Weather Statement	RIW		25 min
May 13, 2:50 PM MDT	Special Weather Statement	RIW		40 min
May 13, 2:58 PM MDT	Special Weather Statement	RIW	Lincoln	32 min
May 13, 3:08 PM MDT	Special Weather Statement	RIW		37 min
May 13, 3:15 PM MDT	Special Weather Statement	CYS	Platte	45 min
May 13, 3:49 PM MDT	Special Weather Statement	RIW	Fremont	26 min
May 13, 3:58 PM MDT	Special Weather Statement	RIW	Natrona	47 min
May 13, 4:05 PM MDT	Severe Thunderstorm Warning Considerable damage threat	SLC	Uinta	55 min
May 13, 4:13 PM MDT	Special Weather Statement	RIW	Fremont	32 min
May 13, 4:17 PM MDT	Special Weather Statement	CYS	Niobrara	28 min
May 13, 4:27 PM MDT	Severe Thunderstorm Warning	RIW	Park, Teton	63 min
May 13, 4:41 PM MDT	Severe Thunderstorm Warning Considerable damage threat	SLC	Uinta	49 min
May 13, 4:45 PM MDT	Severe Thunderstorm Warning	RIW	Teton	60 min
May 13, 4:51 PM MDT	Special Weather Statement	RIW	Lincoln	39 min
May 13, 4:55 PM MDT	Special Weather Statement	RIW	Lincoln	50 min
May 13, 4:58 PM MDT	Severe Thunderstorm Warning	RIW	Fremont	21 min
May 13, 5:01 PM MDT	Special Weather Statement	RIW	Lincoln	44 min
May 13, 5:16 PM MDT	Severe Thunderstorm Warning	RIW	Fremont	29 min
May 13, 5:20 PM MDT	Special Weather Statement	CYS	Converse	25 min
May 13, 5:22 PM MDT	Special Weather Statement	CYS	Carbon	38 min
May 13, 5:44 PM MDT	Special Weather Statement	RIW	Fremont	31 min
May 13, 5:58 PM MDT	Special Weather Statement	RIW	Sublette	47 min
May 13, 6:13 PM MDT	Special Weather Statement	CYS	Carbon	47 min
May 13, 6:38 PM MDT	Special Weather Statement	CYS	Laramie	37 min
May 13, 6:41 PM MDT	Special Weather Statement	CYS	Platte	34 min
May 13, 6:58 PM MDT	Special Weather Statement	RIW	Fremont	32 min
May 13, 7:02 PM MDT	Special Weather Statement	BYZ	Sheridan	58 min
May 13, 7:03 PM MDT	Special Weather Statement	CYS	Albany	27 min
May 13, 7:04 PM MDT	Special Weather Statement	RIW		26 min
May 13, 7:10 PM MDT	Special Weather Statement	CYS	Goshen	35 min
May 13, 7:26 PM MDT	Special Weather Statement	RIW	Fremont	34 min
May 13, 7:38 PM MDT	Special Weather Statement	CYS	Albany	37 min
May 13, 7:41 PM MDT	Special Weather Statement	CYS	Goshen	34 min
May 13, 7:48 PM MDT	Special Weather Statement	CYS	Laramie	42 min
May 13, 8:06 PM MDT	Special Weather Statement	CYS	Niobrara	24 min
May 13, 8:18 PM MDT	Special Weather Statement	CYS	Albany	42 min
May 13, 9:46 PM MDT	Special Weather Statement	CYS	Carbon	29 min
May 13, 11:53 PM MDT	Special Weather Statement	BYZ	Sheridan	37 min
May 16, 1:34 AM MDT	Winter Storm Watch	CYS	Albany, Carbon, Converse, Laramie, Platte	24 hr
May 16, 2:58 AM MDT	Winter Storm Watch	RIW	Fremont, Natrona, Sublette, Sweetwater	9 hr
May 16, 11:10 AM MDT	Winter Weather Advisory	SLC	Uinta	55 hr
May 16, 11:20 AM MDT	Winter Weather Advisory	BYZ	Sheridan	49 hr
May 16, 11:52 AM MDT	Winter Storm Warning	RIW	Fremont, Natrona, Sublette, Sweetwater	54 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, 3:49 PM MDT	Special Weather Statement	CYS	Laramie	26 min
May 16, 4:02 PM MDT	Special Weather Statement	CYS	Carbon	28 min
May 16, 4:20 PM MDT	Special Weather Statement	CYS	Laramie	25 min
May 16, 4:44 PM MDT	Special Weather Statement	CYS	Laramie	31 min
May 16, 4:51 PM MDT	Special Weather Statement	CYS	Goshen	24 min
May 17, 1:50 AM MDT	Winter Storm Warning	CYS	Albany, Carbon, Converse, Laramie, Platte	40 hr
May 17, 1:50 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Laramie, Platte	40 hr
May 17, 12:05 PM MDT	Freeze Warning	UNR	Campbell, Crook, Weston	22 hr
May 17, 12:22 PM MDT	Freeze Watch	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	25 hr
May 17, 12:22 PM MDT	Freeze Warning	CYS	Niobrara	22 hr
May 18, 1:15 AM MDT	Freeze Warning	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	35 hr
May 18, 8:40 AM MDT	Blizzard Warning	CYS	Albany, Carbon	6 hr
May 18, 11:40 AM MDT	Freeze Warning	UNR	Campbell, Crook, Weston	21 hr
May 18, 1:00 PM MDT	Freeze Watch	CYS	Albany, Carbon, Converse, Laramie	23 hr
May 18, 5:57 PM MDT	Freeze Warning	RIW	Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 2 more	15 hr
May 19, 9:35 AM MDT	Freeze Warning	RIW	Fremont, Hot Springs, Johnson, Natrona, Sweetwater, Washakie	22 hr
May 19, 11:40 AM MDT	Frost Advisory	CYS	Albany, Laramie, Niobrara, Platte	20 hr
May 19, 11:40 AM MDT	Freeze Warning	CYS	Albany, Carbon, Converse, Laramie	22 hr
May 19, 11:46 AM MDT	Freeze Warning	UNR	Campbell, Crook, Weston	19 hr
May 20, 1:50 AM MDT	Dense Fog Advisory	CYS	Albany, Laramie	7 hr
May 20, 12:55 PM MDT	Winter Weather Advisory	BYZ	Sheridan	29 hr
May 21, 12:07 PM MDT	Special Weather Statement	CYS	Goshen	23 min
May 21, 12:52 PM MDT	Special Weather Statement	CYS	Goshen	38 min
May 21, 1:29 PM MDT	Special Weather Statement	CYS	Goshen	31 min
May 21, 1:39 PM MDT	Special Weather Statement	CYS	Goshen	36 min
May 21, 1:58 PM MDT	Freeze Warning	CYS	Albany, Carbon, Laramie	19 hr
May 21, 2:02 PM MDT	Special Weather Statement	CYS	Goshen	43 min
May 21, 2:19 PM MDT	Mesoscale Discussion	SPC	Laramie	116 min
May 21, 3:54 PM MDT	Special Weather Statement	CYS	Laramie	36 min
May 21, 4:22 PM MDT	Snow Squall Warning	CYS	Carbon	53 min
May 24, 4:17 PM MDT	Special Weather Statement	CYS	Albany	13 min
May 24, 4:40 PM MDT	Special Weather Statement	CYS	Albany	20 min
May 24, 6:40 PM MDT	Special Weather Statement	RIW	Fremont	35 min
May 24, 7:08 PM MDT	Special Weather Statement	RIW	Fremont	37 min
May 24, 7:23 PM MDT	Special Weather Statement	RIW		37 min
May 24, 7:56 PM MDT	Special Weather Statement	RIW		34 min
May 26, 3:17 PM MDT	Special Weather Statement	RIW	Teton	28 min
May 26, 3:26 PM MDT	Severe Thunderstorm Warning	RIW	Teton	49 min
May 27, 11:59 PM MDT	Dense Fog Advisory	CYS	Albany, Laramie	8 hr
May 28, 3:21 PM MDT	Special Weather Statement	CYS	Converse	39 min
May 28, 5:21 PM MDT	Special Weather Statement	CYS	Converse	39 min
May 28, 7:28 PM MDT	Special Weather Statement	CYS	Carbon	47 min
May 28, 8:18 PM MDT	Special Weather Statement	CYS	Carbon	42 min
May 29, 12:41 AM MDT	Dense Fog Advisory	CYS	Albany, Laramie	7 hr
May 29, 10:15 AM MDT	Flash Flood Watch	BYZ	Sheridan	35 hr
May 29, 2:04 PM MDT	Special Weather Statement	BYZ	Sheridan	41 min
May 29, 2:43 PM MDT	Special Weather Statement	BYZ	Sheridan	47 min
May 29, 4:03 PM MDT	Special Weather Statement	CYS	Laramie	42 min
May 29, 4:04 PM MDT	Special Weather Statement	CYS	Goshen	26 min
May 29, 4:12 PM MDT	Special Weather Statement	CYS	Laramie	48 min
May 29, 4:14 PM MDT	Special Weather Statement	UNR	Crook	31 min
May 29, 4:23 PM MDT	Special Weather Statement	RIW	Johnson	52 min
May 29, 5:05 PM MDT	Severe Thunderstorm Warning	CYS	Goshen	40 min
May 29, 5:30 PM MDT	Special Weather Statement	CYS	Goshen	45 min
May 29, 5:55 PM MDT	Special Weather Statement	CYS	Goshen	35 min
May 29, 6:24 PM MDT	Special Weather Statement	CYS	Goshen	36 min
May 29, 6:58 PM MDT	Special Weather Statement	CYS	Niobrara	47 min
May 29, 9:19 PM MDT	Special Weather Statement	UNR	Campbell	26 min
May 29, 9:43 PM MDT	Special Weather Statement	RIW	Fremont	32 min
May 29, 9:57 PM MDT	Special Weather Statement	UNR	Crook	33 min
May 29, 10:10 PM MDT	Special Weather Statement	RIW	Fremont	35 min
May 29, 10:39 PM MDT	Special Weather Statement	RIW	Fremont	51 min
May 30, 1:22 AM MDT	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	32 hr
May 30, 12:34 PM MDT	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	26 hr
May 30, 1:14 PM MDT	Mesoscale Discussion	SPC	Crook, Goshen, Niobrara, Weston	2 hr
May 30, 1:50 PM MDT	Special Weather Statement	CYS	Goshen	40 min
May 30, 2:13 PM MDT	Severe Thunderstorm Watch	SPC	Goshen, Laramie, Niobrara, Weston	7 hr
May 30, 2:21 PM MDT	Mesoscale Discussion	SPC	Campbell, Crook	2 hr
May 30, 2:30 PM MDT	Severe Thunderstorm Warning	CYS	Goshen, Niobrara	45 min
May 30, 2:37 PM MDT	Special Weather Statement	CYS	Niobrara	38 min
May 30, 2:46 PM MDT	Severe Thunderstorm Warning	CYS	Converse, Goshen, Niobrara, Platte	17 min
May 30, 3:08 PM MDT	Special Weather Statement	CYS	Niobrara	37 min
May 30, 3:17 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	43 min
May 30, 3:22 PM MDT	Special Weather Statement	CYS	Laramie	38 min
May 30, 4:05 PM MDT	Severe Thunderstorm Warning	CYS	Laramie	25 min
May 30, 4:41 PM MDT	Areal Flood Advisory	CYS	Laramie	3 hr
May 30, 5:18 PM MDT	Special Weather Statement	CYS	Goshen	27 min
May 30, 5:20 PM MDT	Mesoscale Discussion	SPC	Crook, Goshen, Laramie, Niobrara, Platte, Weston	85 min
May 30, 6:31 PM MDT	Special Weather Statement	BYZ	Sheridan	44 min
May 30, 10:35 PM MDT	Flash Flood Warning	BYZ	Sheridan	3 hr

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	17
Severe Thunderstorm Watch	2
Mesoscale Discussion	6
Special Weather Statement	97
Flooding
Flash Flood Warning	1
Flash Flood Watch	1
Areal Flood Advisory	1
Winter
Blizzard Warning	1
Snow Squall Warning	1
Winter Storm Warning	3
Winter Storm Watch	4
Winter Weather Advisory	7
Cold
Freeze Warning	10
Freeze Watch	3
Frost Advisory	3
Wind and dust
High Wind Warning	2
High Wind Watch	2
Fire
Red Flag Warning	2
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.

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

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.