Weather alerts in Colorado, December 2010

61 weather alerts in December 2010, 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 2010. Tap one for its archive.

Alerts: 61
Warnings: 17
Watches: 13
Advisories: 29
Busiest day: December 31, 20107 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 2, 3:45 AM MST	High Wind Watch	BOU	Boulder, Broomfield, Clear Creek, Douglas, Gilpin, Jefferson and 3 more	12 hr
Dec 2, 3:33 PM MST	High Wind Warning	BOU	Boulder, Broomfield, Clear Creek, Douglas, Gilpin, Jefferson and 3 more	24 hr
Dec 3, 4:22 AM MST	High Wind Warning	PUB	El Paso, Fremont, Teller	12 hr
Dec 3, 11:40 AM MST	Red Flag Warning	PUB	El Paso, Huerfano, Las Animas, Pueblo	6 hr
Dec 5, 2:41 PM MST	Winter Weather Advisory	GJT	Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt	45 hr
Dec 6, 11:24 PM MST	Dense Fog Advisory	GJT	Garfield, Mesa	11 hr
Dec 8, 3:03 PM MST	Winter Storm Watch	GJT	Delta, Eagle, Garfield, Gunnison, Moffat, Montrose and 3 more	23 hr
Dec 9, 11:40 AM MST	Wind Advisory	GLD	Cheyenne, Kit Carson, Yuma	2 hr
Dec 9, 2:18 PM MST	Winter Storm Warning	GJT	Delta, Eagle, Garfield, Gunnison, Moffat, Montrose and 3 more	49 hr
Dec 9, 2:18 PM MST	Winter Weather Advisory	GJT	Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 6 more	49 hr
Dec 9, 2:37 PM MST	Winter Weather Advisory	PUB	Chaffee, Lake, Saguache	44 hr
Dec 10, 4:54 AM MST	Winter Weather Advisory	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	5 hr
Dec 10, 9:55 AM MST	Winter Storm Warning	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	25 hr
Dec 10, 6:57 PM MST	Severe Thunderstorm Warning	GLD	Kit Carson, Yuma	42 min
Dec 11, 3:27 AM MST	Wind Advisory	GLD	Cheyenne, Kit Carson, Yuma	13 hr
Dec 11, 11:09 AM MST	Winter Weather Advisory	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	6 hr
Dec 14, 2:30 PM MST	Winter Weather Advisory	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more	52 hr
Dec 14, 2:53 PM MST	Winter Storm Watch	PUB	Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more	13 hr
Dec 14, 2:53 PM MST	Winter Weather Advisory	PUB	Alamosa, Baca, Chaffee, Conejos, Costilla, Custer and 10 more	68 hr
Dec 14, 3:16 PM MST	Winter Weather Advisory	BOU	Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 9 more	32 hr
Dec 17, 4:06 AM MST	Winter Storm Watch	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more	24 hr
Dec 17, 4:06 AM MST	Winter Weather Advisory	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more	3 days
Dec 17, 3:22 PM MST	Winter Weather Advisory	PUB	Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache	37 hr
Dec 18, 4:04 AM MST	Winter Storm Warning	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more	6 days
Dec 18, 4:13 AM MST	Winter Storm Watch	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	6 hr
Dec 18, 4:13 AM MST	Winter Storm Warning	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	4 days
Dec 18, 4:30 AM MST	Winter Storm Watch	PUB	Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache	24 hr
Dec 18, 10:14 AM MST	Winter Weather Advisory	BOU	Boulder, Clear Creek, Gilpin, Grand, Jefferson, Park and 1 more	17 hr
Dec 18, 3:01 PM MST	High Wind Watch	PUB	Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more	14 hr
Dec 19, 1:29 AM MST	Dense Fog Advisory	PUB	Custer, El Paso, Fremont, Pueblo, Teller	5 hr
Dec 19, 4:27 AM MST	Winter Storm Warning	PUB	Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache	5 days
Dec 19, 4:31 AM MST	High Wind Warning	PUB	Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more	37 hr
Dec 19, 5:36 PM MST	Winter Weather Advisory	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 7 more	4 days
Dec 19, 8:30 PM MST	Freezing Fog Advisory	GLD	Yuma	13 hr
Dec 21, 2:45 PM MST	Winter Storm Watch	GJT	Archuleta, Dolores, La Plata, Montezuma, San Miguel	24 hr
Dec 22, 3:04 PM MST	Winter Weather Advisory	GJT	Garfield, Moffat, Rio Blanco, Routt	17 hr
Dec 23, 3:25 AM MST	Dense Fog Advisory	PUB	El Paso	4 hr
Dec 25, 1:01 AM MST	Dense Fog Advisory	GJT	Garfield, Moffat, Rio Blanco, Routt	8 hr
Dec 25, 8:13 PM MST	Dense Fog Advisory	GJT	Garfield, Moffat, Rio Blanco, Routt	13 hr
Dec 27, 2:47 PM MST	Winter Storm Watch	PUB	Chaffee, Conejos, Lake, Mineral, Rio Grande, Saguache	25 hr
Dec 27, 3:13 PM MST	Winter Storm Watch	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more	24 hr
Dec 28, 2:59 PM MST	High Wind Watch	PUB	Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 2 more	15 hr
Dec 28, 3:23 PM MST	Winter Storm Warning	PUB	Chaffee, Conejos, El Paso, Fremont, Lake, Mineral and 3 more	68 hr
Dec 28, 3:23 PM MST	Winter Weather Advisory	PUB	Alamosa, Chaffee, Conejos, Costilla, Crowley, Custer and 12 more	68 hr
Dec 28, 3:26 PM MST	Winter Storm Warning	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 12 more	67 hr
Dec 28, 3:26 PM MST	Winter Weather Advisory	GJT	Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 5 more	18 hr
Dec 28, 5:18 PM MST	Dense Fog Advisory	GJT	Garfield, Moffat, Rio Blanco, Routt	8 hr
Dec 29, 3:29 AM MST	Winter Storm Watch	BOU	Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 13 more	13 hr
Dec 29, 4:10 AM MST	Winter Storm Watch	GLD	Kit Carson, Yuma	23 hr
Dec 29, 4:34 AM MST	High Wind Warning	PUB	Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 2 more	10 hr
Dec 29, 3:27 PM MST	Winter Storm Warning	BOU	Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 12 more	44 hr
Dec 29, 3:27 PM MST	Winter Weather Advisory	BOU	Adams, Arapahoe, Boulder, Clear Creek, Elbert, Gilpin and 13 more	47 hr
Dec 30, 3:00 AM MST	Winter Weather Advisory	GLD	Cheyenne, Kit Carson, Yuma	38 hr
Dec 30, 12:53 PM MST	Mesoscale Discussion	SPC	Boulder, Broomfield, Clear Creek, Denver, Douglas, Gilpin and 3 more	5 hr
Dec 30, 7:48 PM MST	Mesoscale Discussion	SPC	Logan, Phillips, Sedgwick, Washington, Yuma	4 hr
Dec 31, 2:57 AM MST	Blizzard Warning	BOU	Logan, Phillips, Sedgwick	9 hr
Dec 31, 5:24 AM MST	Wind Chill Advisory	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more	10 hr
Dec 31, 6:09 AM MST	Wind Chill Advisory	BOU	Arapahoe, Douglas, Elbert	6 hr
Dec 31, 2:45 PM MST	Wind Chill Warning	BOU	Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more	19 hr
Dec 31, 2:45 PM MST	Wind Chill Advisory	BOU	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more	19 hr
Dec 31, 3:15 PM MST	Wind Chill Warning	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more	19 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	1
Mesoscale Discussion	2
Winter
Blizzard Warning	1
Winter Storm Warning	8
Winter Storm Watch	10
Winter Weather Advisory	17
Cold
Wind Chill Warning	2
Wind Chill Advisory	3
Wind and dust
High Wind Warning	4
High Wind Watch	3
Wind Advisory	2
Fire
Red Flag Warning	1
Fog and smoke
Dense Fog Advisory	6
Freezing Fog Advisory	1

By county

Every county with at least one alert. A county page lists each alert that covered it.

22 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2009 2011

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. Warning verification from the Mesonet's Cow. Rebuilt daily.