Weather alerts in Wyoming, December 2020

54 weather alerts in December 2020, 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 December 2020. Tap one for its archive.

Alerts: 54
Warnings: 22
Watches: 11
Advisories: 15
Busiest day: December 21, 20206 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
Dec 1, 9:56 AM MST	Special Weather Statement	BYZ	Sheridan	109 min
Dec 4, 5:23 AM MST	High Wind Warning	CYS	Albany, Laramie, Platte	7 hr
Dec 9, 2:43 AM MST	Red Flag Warning	UNR	Campbell	14 hr
Dec 10, 6:57 PM MST	Dense Fog Advisory	CYS	Albany, Carbon, Laramie	14 hr
Dec 11, 2:23 AM MST	Special Weather Statement	BYZ	Sheridan	4 hr
Dec 11, 6:11 AM MST	Special Weather Statement	BYZ	Sheridan	4 hr
Dec 12, 2:40 AM MST	High Wind Watch	CYS	Albany, Carbon	10 hr
Dec 12, 1:03 PM MST	High Wind Warning	CYS	Albany, Carbon	37 hr
Dec 13, 5:52 PM MST	Winter Weather Advisory	RIW	Lincoln	16 hr
Dec 14, 1:13 PM MST	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	13 hr
Dec 14, 2:54 PM MST	Special Weather Statement	BYZ	Sheridan	3 hr
Dec 15, 2:13 AM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	59 hr
Dec 15, 3:46 PM MST	High Wind Warning	RIW	Park	11 hr
Dec 16, 2:21 PM MST	Winter Weather Advisory	RIW	Fremont, Lincoln, Sublette, Teton	36 hr
Dec 17, 2:37 AM MST	Winter Weather Advisory	CYS	Albany, Carbon	51 hr
Dec 18, 2:42 AM MST	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	10 hr
Dec 18, 1:08 PM MST	High Wind Watch	CYS	Carbon, Converse, Goshen, Laramie, Niobrara	13 hr
Dec 18, 1:08 PM MST	High Wind Warning	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	3 days
Dec 18, 1:30 PM MST	High Wind Watch	RIW	Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 1 more	36 hr
Dec 19, 4:58 AM MST	High Wind Warning	RIW	Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 1 more	44 hr
Dec 19, 1:10 PM MST	Winter Weather Advisory	RIW	Fremont, Lincoln, Park, Sublette, Teton	47 hr
Dec 21, 3:01 AM MST	High Wind Watch	RIW	Big Horn, Fremont, Johnson, Lincoln, Natrona, Park and 1 more	23 hr
Dec 21, 11:00 AM MST	High Wind Watch	BYZ	Sheridan	15 hr
Dec 21, 1:31 PM MST	High Wind Warning	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	4 days
Dec 21, 1:43 PM MST	Winter Weather Advisory	UNR	Crook, Weston	24 hr
Dec 21, 1:45 PM MST	High Wind Watch	UNR	Campbell, Crook, Weston	13 hr
Dec 21, 2:06 PM MST	High Wind Warning	RIW	Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 3 more	39 hr
Dec 22, 2:18 AM MST	High Wind Warning	BYZ	Sheridan	24 hr
Dec 22, 3:13 AM MST	High Wind Warning	UNR	Campbell, Crook, Weston	34 hr
Dec 22, 3:39 AM MST	High Wind Watch	CYS	Converse, Niobrara, Platte	10 hr
Dec 22, 5:55 AM MST	Winter Weather Advisory	CYS	Albany, Carbon	27 hr
Dec 22, 1:13 PM MST	High Wind Warning	CYS	Albany, Carbon, Goshen, Laramie	21 hr
Dec 22, 1:25 PM MST	Winter Storm Warning	UNR	Crook, Weston	19 hr
Dec 22, 5:50 PM MST	Snow Squall Warning	CYS	Albany, Laramie	25 min
Dec 22, 6:22 PM MST	Snow Squall Warning	CYS	Laramie	20 min
Dec 22, 11:51 PM MST	Snow Squall Warning	CYS	Laramie	24 min
Dec 23, 12:18 AM MST	Snow Squall Warning	CYS	Laramie	42 min
Dec 25, 3:09 AM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	35 hr
Dec 25, 12:42 PM MST	Winter Storm Warning	RIW	Fremont, Lincoln, Sublette, Teton	41 hr
Dec 25, 12:42 PM MST	Winter Weather Advisory	RIW	Fremont, Lincoln, Park, Sublette, Teton	41 hr
Dec 26, 12:35 AM MST	Winter Weather Advisory	CYS	Albany, Carbon	40 hr
Dec 27, 1:04 PM MST	Winter Storm Watch	CYS	Albany, Carbon	12 hr
Dec 27, 2:26 PM MST	Snow Squall Warning	RIW	Natrona	49 min
Dec 28, 1:17 AM MST	Winter Storm Warning	CYS	Albany, Carbon, Laramie	39 hr
Dec 28, 1:17 AM MST	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	39 hr
Dec 28, 3:06 AM MST	Winter Weather Advisory	UNR	Crook, Weston	37 hr
Dec 28, 4:02 AM MST	Dense Fog Advisory	CYS	Converse, Goshen, Niobrara, Platte	7 hr
Dec 28, 4:35 AM MST	Dense Fog Advisory	RIW	Natrona	4 hr
Dec 28, 5:51 AM MST	Freezing Fog Advisory	RIW	Fremont	6 hr
Dec 28, 5:38 PM MST	Special Weather Statement	BYZ	Sheridan	3 hr
Dec 28, 8:30 PM MST	Special Weather Statement	BYZ	Sheridan	2 hr
Dec 28, 11:29 PM MST	Freezing Fog Advisory	RIW	Fremont	12 hr
Dec 29, 2:26 AM MST	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	11 hr
Dec 29, 1:44 PM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	40 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
Special Weather Statement	6
Winter
Snow Squall Warning	5
Winter Storm Warning	3
Winter Storm Watch	1
Winter Weather Advisory	10
Wind and dust
High Wind Warning	13
High Wind Watch	10
Fire
Red Flag Warning	1
Fog and smoke
Dense Fog Advisory	3
Freezing Fog Advisory	2

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 2019 2021

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.