Weather alerts in Wyoming, December 2009

49 weather alerts in December 2009, 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 2009. Tap one for its archive.

Alerts: 49
Warnings: 11
Watches: 11
Advisories: 27
Busiest day: December 12, 20096 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 4, 3:02 AM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	17 hr
Dec 4, 3:45 PM MST	Winter Weather Advisory	BYZ		36 hr
Dec 5, 3:43 AM MST	Winter Storm Watch	CYS	Albany, Carbon, Converse, Laramie, Platte	18 hr
Dec 5, 10:40 AM MST	Winter Weather Advisory	SLC	Uinta	24 hr
Dec 5, 11:01 AM MST	Winter Weather Advisory	RIW	Fremont, Lincoln, Natrona, Sublette, Sweetwater	28 hr
Dec 5, 5:00 PM MST	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Laramie, Platte	21 hr
Dec 7, 2:04 AM MST	Winter Storm Watch	CYS	Albany, Carbon, Converse, Goshen, Laramie, Platte	12 hr
Dec 7, 1:45 PM MST	Winter Weather Advisory	CYS	Albany, Carbon, Goshen, Laramie, Platte	23 hr
Dec 7, 3:44 PM MST	Winter Weather Advisory	RIW	Sweetwater	19 hr
Dec 8, 2:24 PM MST	Wind Chill Advisory	BYZ		21 hr
Dec 8, 2:33 PM MST	Wind Chill Advisory	UNR	Campbell, Crook, Weston	21 hr
Dec 8, 2:49 PM MST	Wind Chill Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	20 hr
Dec 8, 2:49 PM MST	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Laramie, Platte	45 hr
Dec 9, 3:19 AM MST	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	6 hr
Dec 9, 5:33 AM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	35 hr
Dec 9, 2:44 PM MST	Wind Chill Advisory	CYS	Albany, Carbon, Converse, Laramie, Niobrara, Platte	18 hr
Dec 9, 2:53 PM MST	Wind Chill Advisory	BYZ		12 hr
Dec 9, 2:55 PM MST	Wind Chill Advisory	UNR	Campbell, Crook, Weston	13 hr
Dec 11, 1:38 PM MST	Winter Storm Watch	RIW	Fremont, Lincoln, Park, Sublette, Teton	20 hr
Dec 11, 2:58 PM MST	Winter Storm Watch	BYZ		24 hr
Dec 12, 10:07 AM MST	Winter Storm Warning	RIW	Fremont, Lincoln, Park, Sublette, Teton	40 hr
Dec 12, 10:07 AM MST	Winter Weather Advisory	RIW	Big Horn, Fremont, Johnson, Lincoln, Natrona, Sublette and 2 more	40 hr
Dec 12, 1:18 PM MST	High Wind Warning	CYS	Albany, Laramie, Platte	3 hr
Dec 12, 2:57 PM MST	Winter Weather Advisory	BYZ		50 hr
Dec 12, 3:29 PM MST	Winter Weather Advisory	SLC	Uinta	24 hr
Dec 12, 4:02 PM MST	Winter Weather Advisory	CYS	Albany, Carbon	37 hr
Dec 14, 1:41 PM MST	High Wind Watch	CYS	Albany, Carbon, Converse, Laramie, Platte	15 hr
Dec 14, 3:16 PM MST	High Wind Watch	RIW	Fremont, Hot Springs, Natrona, Park, Sweetwater	11 hr
Dec 15, 1:58 AM MST	High Wind Warning	RIW	Fremont, Hot Springs, Natrona, Park, Sweetwater	21 hr
Dec 15, 5:04 AM MST	High Wind Warning	CYS	Albany, Carbon, Converse, Laramie, Platte	17 hr
Dec 18, 6:42 PM MST	Dense Fog Advisory	RIW	Fremont	16 hr
Dec 20, 5:17 AM MST	High Wind Watch	CYS	Albany, Carbon, Laramie, Platte	8 hr
Dec 20, 1:22 PM MST	High Wind Warning	CYS	Albany, Carbon, Laramie, Platte	23 hr
Dec 21, 5:07 AM MST	Winter Storm Watch	CYS	Albany, Goshen, Laramie, Niobrara, Platte	23 hr
Dec 21, 1:28 PM MST	Winter Storm Watch	UNR	Crook, Weston	39 hr
Dec 22, 4:17 AM MST	Winter Weather Advisory	BYZ		41 hr
Dec 22, 4:22 AM MST	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more	46 hr
Dec 22, 4:23 AM MST	Winter Storm Warning	UNR	Crook, Weston	5 days
Dec 22, 12:36 PM MST	Winter Weather Advisory	UNR	Campbell, Crook, Weston	4 days
Dec 22, 10:08 PM MST	Winter Weather Advisory	RIW	Fremont, Johnson, Natrona, Sweetwater	25 hr
Dec 24, 1:34 PM MST	Wind Chill Advisory	CYS	Goshen, Niobrara	15 hr
Dec 24, 1:34 PM MST	Winter Storm Watch	CYS	Goshen, Niobrara	15 hr
Dec 24, 1:34 PM MST	Winter Weather Advisory	CYS	Albany, Carbon, Converse, Goshen, Laramie, Platte	51 hr
Dec 24, 2:33 PM MST	Blizzard Warning	UNR		56 hr
Dec 25, 2:40 AM MST	Winter Weather Advisory	RIW	Big Horn, Fremont, Johnson, Natrona, Sweetwater, Washakie	36 hr
Dec 25, 3:59 AM MST	Winter Weather Advisory	BYZ		31 hr
Dec 25, 4:22 AM MST	Winter Storm Warning	CYS	Converse, Niobrara	37 hr
Dec 25, 1:13 PM MST	Blizzard Warning	CYS	Niobrara	16 hr
Dec 27, 7:37 PM MST	Dense Fog Advisory	RIW	Fremont	16 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Winter
Blizzard Warning	2
Winter Storm Warning	3
Winter Storm Watch	7
Winter Weather Advisory	18
Cold
Wind Chill Advisory	7
Wind and dust
High Wind Warning	6
High Wind Watch	4
Fog and smoke
Dense 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 2008 2010

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.