Weather alerts in Wyoming, April 2021

61 weather alerts in April 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 April 2021. Tap one for its archive.

Alerts: 61
Warnings: 17
Watches: 13
Advisories: 25
Busiest day: April 13, 20218 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
Apr 4, 1:43 PM MDT	Winter Weather Advisory	BYZ	Sheridan	49 hr
Apr 4, 2:06 PM MDT	Winter Storm Watch	UNR	Crook, Weston	24 hr
Apr 5, 2:51 AM MDT	Winter Weather Advisory	RIW	Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 3 more	36 hr
Apr 5, 1:58 PM MDT	Winter Storm Warning	UNR	Crook, Weston	36 hr
Apr 6, 2:41 AM MDT	Winter Weather Advisory	UNR	Campbell, Weston	27 hr
Apr 6, 2:55 AM MDT	Winter Weather Advisory	CYS	Albany, Converse, Niobrara, Platte	23 hr
Apr 6, 7:17 PM MDT	Winter Storm Warning	CYS	Niobrara	14 hr
Apr 7, 1:29 PM MDT	Winter Storm Watch	UNR	Crook, Weston	14 hr
Apr 8, 2:29 AM MDT	Winter Weather Advisory	BYZ	Sheridan	28 hr
Apr 8, 3:22 AM MDT	Winter Weather Advisory	UNR	Crook, Weston	29 hr
Apr 8, 4:50 PM MDT	Special Weather Statement	BYZ	Sheridan	40 min
Apr 9, 5:10 PM MDT	High Wind Watch	RIW	Big Horn, Johnson, Park	18 hr
Apr 10, 11:16 AM MDT	High Wind Warning	RIW	Big Horn, Johnson, Park	15 hr
Apr 10, 2:02 PM MDT	High Wind Watch	CYS	Albany, Carbon, Laramie	6 hr
Apr 10, 2:27 PM MDT	High Wind Warning	UNR	Campbell, Crook, Weston	16 hr
Apr 10, 8:17 PM MDT	High Wind Warning	CYS	Albany, Carbon, Laramie	11 hr
Apr 12, 2:38 AM MDT	Winter Storm Watch	CYS	Albany, Carbon, Laramie	25 hr
Apr 13, 2:47 AM MDT	High Wind Warning	SLC	Uinta	33 hr
Apr 13, 3:12 AM MDT	Winter Storm Warning	CYS	Albany, Carbon, Goshen, Laramie, Platte	3 days
Apr 13, 3:12 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon	3 days
Apr 13, 3:12 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	3 days
Apr 13, 3:27 AM MDT	Winter Storm Watch	RIW	Fremont, Lincoln, Sublette	12 hr
Apr 13, 3:37 PM MDT	Winter Storm Watch	RIW	Big Horn, Fremont, Hot Springs, Johnson, Natrona, Sweetwater and 1 more	13 hr
Apr 13, 3:37 PM MDT	Winter Storm Warning	RIW	Fremont, Lincoln, Natrona, Sublette, Sweetwater	56 hr
Apr 13, 3:37 PM MDT	Winter Weather Advisory	RIW	Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 2 more	68 hr
Apr 13, 8:52 PM MDT	Winter Weather Advisory	SLC	Uinta	26 hr
Apr 14, 2:06 AM MDT	Winter Weather Advisory	BYZ	Sheridan	58 hr
Apr 14, 2:55 AM MDT	Winter Weather Advisory	UNR	Campbell, Crook, Weston	48 hr
Apr 17, 2:09 AM MDT	Winter Storm Watch	BYZ	Sheridan	13 hr
Apr 17, 2:26 AM MDT	Winter Storm Watch	UNR	Crook, Weston	24 hr
Apr 17, 2:30 AM MDT	Winter Storm Watch	RIW	Big Horn, Fremont, Johnson, Natrona, Washakie	25 hr
Apr 17, 3:31 PM MDT	Winter Storm Warning	BYZ	Sheridan	45 hr
Apr 18, 2:32 AM MDT	Winter Storm Warning	UNR	Crook, Weston	33 hr
Apr 18, 2:32 AM MDT	Winter Weather Advisory	UNR	Campbell, Crook, Weston	54 hr
Apr 18, 2:57 AM MDT	Winter Storm Watch	CYS	Albany, Laramie	16 hr
Apr 18, 2:57 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	46 hr
Apr 18, 3:15 AM MDT	Winter Storm Warning	RIW	Big Horn, Fremont, Johnson, Natrona, Washakie	42 hr
Apr 18, 3:15 AM MDT	Winter Weather Advisory	RIW	Fremont, Hot Springs, Johnson, Natrona, Park, Sublette and 1 more	42 hr
Apr 18, 6:34 PM MDT	Winter Storm Warning	CYS	Albany, Laramie	32 hr
Apr 21, 9:16 AM MDT	Freezing Fog Advisory	CYS	Albany, Laramie	4 hr
Apr 21, 2:33 PM MDT	Freezing Fog Advisory	CYS	Albany, Laramie	3 hr
Apr 22, 1:09 AM MDT	Freezing Fog Advisory	CYS	Albany, Laramie	6 hr
Apr 22, 7:43 AM MDT	Dense Fog Advisory	CYS	Albany, Carbon	3 hr
Apr 24, 2:00 AM MDT	Freezing Fog Advisory	CYS	Albany, Laramie	6 hr
Apr 24, 3:57 AM MDT	Dense Fog Advisory	CYS	Albany, Laramie	4 hr
Apr 25, 3:04 AM MDT	Winter Weather Advisory	RIW	Big Horn, Fremont, Johnson, Lincoln, Natrona, Sublette and 2 more	57 hr
Apr 25, 10:18 AM MDT	High Wind Warning	CYS	Albany, Carbon	35 hr
Apr 25, 1:49 PM MDT	High Wind Watch	CYS	Albany, Carbon	13 hr
Apr 25, 11:29 PM MDT	Winter Weather Advisory	BYZ	Sheridan	33 hr
Apr 26, 3:23 AM MDT	High Wind Warning	RIW	Natrona	14 hr
Apr 26, 2:12 PM MDT	Winter Storm Watch	CYS	Albany, Carbon, Laramie	12 hr
Apr 26, 5:35 PM MDT	Special Weather Statement	UNR	Weston	25 min
Apr 26, 6:32 PM MDT	Special Weather Statement	UNR	Weston	28 min
Apr 26, 6:54 PM MDT	Severe Thunderstorm Warning	UNR	Weston	36 min
Apr 26, 7:29 PM MDT	Severe Thunderstorm Warning	UNR	Weston	27 min
Apr 27, 2:34 AM MDT	Winter Storm Warning	CYS	Albany, Carbon	27 hr
Apr 27, 2:34 AM MDT	Winter Weather Advisory	CYS	Albany, Carbon, Laramie	27 hr
Apr 27, 4:31 AM MDT	Special Weather Statement	BYZ	Sheridan	4 hr
Apr 27, 2:00 PM MDT	Special Weather Statement	CYS	Albany	30 min
Apr 27, 3:13 PM MDT	Special Weather Statement	RIW		47 min
Apr 28, 5:22 AM MDT	Dense Fog Advisory	CYS	Converse	4 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	2
Special Weather Statement	6
Winter
Winter Storm Warning	9
Winter Storm Watch	10
Winter Weather Advisory	18
Wind and dust
High Wind Warning	6
High Wind Watch	3
Fog and smoke
Dense Fog Advisory	3
Freezing 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 2020 2022

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.