Weather alerts in Colorado, December 2023

81 weather alerts in December 2023, 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 2023. Tap one for its archive.

Alerts: 81
Warnings: 28
Watches: 16
Advisories: 30
Busiest day: December 8, 202314 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, 2:41 AM MST	Winter Storm Warning	GJT	Delta, Eagle, Garfield, Gunnison, Moffat, Montrose and 3 more	3 days
Dec 1, 3:16 AM MST	Winter Storm Warning	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	3 days
Dec 1, 1:42 PM MST	Winter Weather Advisory	BOU	Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more	63 hr
Dec 1, 1:45 PM MST	High Wind Watch	BOU	Boulder, Clear Creek, Douglas, Gilpin, Jefferson, Larimer and 1 more	23 hr
Dec 1, 2:49 PM MST	Winter Weather Advisory	PUB	Chaffee, Lake, Saguache	23 hr
Dec 2, 3:28 AM MST	Winter Weather Advisory	GJT	Delta, Gunnison, Montrose	10 hr
Dec 2, 4:05 AM MST	High Wind Watch	PUB	El Paso, Fremont, Teller	7 hr
Dec 2, 6:13 AM MST	Dense Fog Advisory	GJT	Garfield, Mesa	3 hr
Dec 2, 11:25 AM MST	High Wind Watch	PUB	Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 3 more	7 hr
Dec 2, 11:25 AM MST	High Wind Warning	PUB	Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more	27 hr
Dec 2, 12:43 PM MST	High Wind Warning	BOU	Boulder, Clear Creek, Douglas, Gilpin, Jefferson, Larimer and 1 more	25 hr
Dec 2, 2:08 PM MST	Winter Storm Warning	PUB	Chaffee, Lake, Saguache	36 hr
Dec 2, 2:08 PM MST	Winter Weather Advisory	PUB	Chaffee, Lake	27 hr
Dec 5, 2:22 PM MST	High Wind Watch	BOU	Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more	23 hr
Dec 6, 1:25 PM MST	High Wind Warning	BOU	Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more	28 hr
Dec 7, 2:21 AM MST	Winter Weather Advisory	GJT	Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 7 more	51 hr
Dec 7, 3:01 AM MST	Winter Weather Advisory	BOU	Arapahoe, Boulder, Broomfield, Clear Creek, Douglas, Elbert and 7 more	50 hr
Dec 7, 10:52 AM MST	Red Flag Warning	PUB	El Paso, Huerfano, Las Animas, Pueblo	7 hr
Dec 7, 10:53 AM MST	High Wind Warning	PUB	Alamosa, Chaffee, Costilla, Custer, Fremont, Huerfano and 2 more	7 hr
Dec 7, 2:48 PM MST	Winter Weather Advisory	PUB	Baca, Chaffee, Costilla, Custer, El Paso, Fremont and 6 more	40 hr
Dec 8, 8:53 AM MST	Snow Squall Warning	PUB	Chaffee, Fremont	22 min
Dec 8, 9:15 AM MST	Snow Squall Warning	PUB	Chaffee, Fremont, Teller	30 min
Dec 8, 9:47 AM MST	Snow Squall Warning	PUB	Fremont, Teller	28 min
Dec 8, 10:55 AM MST	Special Weather Statement	GJT	Garfield	65 min
Dec 8, 11:11 AM MST	Snow Squall Warning	PUB	Costilla, Huerfano, Las Animas	34 min
Dec 8, 11:12 AM MST	Special Weather Statement	GJT	Garfield	63 min
Dec 8, 12:31 PM MST	Special Weather Statement	GJT	Garfield	59 min
Dec 8, 1:37 PM MST	Special Weather Statement	GJT	Eagle	53 min
Dec 8, 2:16 PM MST	Winter Storm Warning	PUB	El Paso	15 hr
Dec 8, 2:50 PM MST	Snow Squall Warning	PUB	Chaffee, Lake	25 min
Dec 8, 3:00 PM MST	Special Weather Statement	GJT	Eagle	60 min
Dec 8, 3:01 PM MST	Snow Squall Warning	PUB	Alamosa, Rio Grande, Saguache	29 min
Dec 8, 3:46 PM MST	Snow Squall Warning	PUB	Alamosa, Costilla, Huerfano	44 min
Dec 8, 4:04 PM MST	Snow Squall Warning	GJT	Eagle	26 min
Dec 9, 3:55 AM MST	High Wind Watch	BOU	Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more	9 hr
Dec 9, 5:00 AM MST	Winter Weather Advisory	PUB	Baca, Costilla, Huerfano, Las Animas	108 min
Dec 9, 1:18 PM MST	High Wind Warning	BOU	Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 4 more	28 hr
Dec 12, 4:09 AM MST	Winter Storm Watch	PUB	Conejos, Costilla, Huerfano, Las Animas, Mineral, Rio Grande	10 hr
Dec 12, 1:42 PM MST	Winter Weather Advisory	GJT	Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more	44 hr
Dec 12, 2:30 PM MST	Winter Storm Warning	PUB	Baca, Conejos, Costilla, Huerfano, Las Animas, Mineral and 1 more	48 hr
Dec 12, 2:30 PM MST	Winter Weather Advisory	PUB	Alamosa, Bent, Chaffee, Conejos, Costilla, Crowley and 12 more	48 hr
Dec 12, 5:28 PM MST	Winter Weather Advisory	BOU	Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 3 more	16 hr
Dec 13, 3:17 AM MST	Winter Weather Advisory	GLD	Cheyenne, Kit Carson	26 hr
Dec 13, 3:48 AM MST	Winter Weather Advisory	BOU	Elbert, Lincoln	23 hr
Dec 14, 4:51 AM MST	Dense Fog Advisory	BOU	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 4 more	5 hr
Dec 14, 5:40 AM MST	Dense Fog Advisory	GLD	Cheyenne, Kit Carson, Yuma	4 hr
Dec 14, 4:33 PM MST	Dense Fog Advisory	GLD	Cheyenne, Kit Carson	12 hr
Dec 14, 6:32 PM MST	Dense Fog Advisory	GJT	Moffat, Rio Blanco, Routt	11 hr
Dec 15, 10:00 PM MST	Dense Fog Advisory	GJT	Dolores, La Plata, Montezuma, San Miguel	8 hr
Dec 16, 9:09 PM MST	Dense Fog Advisory	GJT	Dolores, Montezuma, San Miguel	39 hr
Dec 21, 2:38 PM MST	Winter Storm Watch	GJT	Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more	12 hr
Dec 21, 2:38 PM MST	Winter Weather Advisory	GJT	Delta, Eagle, Garfield, Gunnison, Hinsdale, Mesa and 7 more	68 hr
Dec 21, 2:48 PM MST	Winter Storm Watch	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 5 more	13 hr
Dec 21, 11:39 PM MST	Dense Fog Advisory	PUB	Alamosa, Conejos, Costilla, Rio Grande, Saguache	10 hr
Dec 22, 2:08 AM MST	Winter Storm Warning	GJT	Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more	48 hr
Dec 22, 3:45 AM MST	Winter Storm Warning	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 5 more	61 hr
Dec 22, 8:55 AM MST	Dense Fog Advisory	GJT	Eagle, Garfield, Moffat, Pitkin, Rio Blanco, Routt	2 hr
Dec 22, 2:34 PM MST	Winter Weather Advisory	PUB	Bent, Chaffee, Conejos, Crowley, Custer, El Paso and 11 more	48 hr
Dec 22, 8:49 PM MST	Winter Weather Advisory	BOU	Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 11 more	38 hr
Dec 23, 2:50 AM MST	Winter Storm Watch	GLD	Cheyenne, Kit Carson, Yuma	11 hr
Dec 23, 2:50 AM MST	Winter Weather Advisory	GLD	Cheyenne, Kit Carson, Yuma	32 hr
Dec 23, 3:16 AM MST	Winter Storm Watch	BOU	Elbert, Lincoln, Washington	11 hr
Dec 23, 4:08 AM MST	Winter Storm Watch	PUB	Crowley, El Paso, Huerfano, Otero, Pueblo	11 hr
Dec 23, 7:46 AM MST	Dense Fog Advisory	GJT	Archuleta, Dolores, La Plata, Montezuma, San Miguel	3 hr
Dec 24, 2:03 AM MST	Winter Storm Watch	GLD	Kit Carson, Yuma	24 hr
Dec 24, 2:03 AM MST	Winter Storm Warning	GLD	Kit Carson, Yuma	9 hr
Dec 24, 4:22 AM MST	Special Weather Statement	GLD	Yuma	23 min
Dec 24, 4:58 AM MST	Snow Squall Warning	GLD	Cheyenne	47 min
Dec 24, 12:40 PM MST	Winter Storm Watch	BOU	Phillips, Sedgwick	13 hr
Dec 24, 8:28 PM MST	High Wind Watch	BOU	Adams, Arapahoe, Elbert, Larimer, Lincoln, Logan and 3 more	6 hr
Dec 25, 1:46 AM MST	Blizzard Warning	GLD	Cheyenne, Kit Carson, Yuma	42 hr
Dec 25, 1:46 AM MST	Winter Weather Advisory	GLD	Cheyenne, Kit Carson, Yuma	63 hr
Dec 25, 1:58 AM MST	High Wind Warning	BOU	Elbert, Larimer, Lincoln, Logan, Morgan, Weld	43 hr
Dec 25, 2:05 AM MST	Blizzard Warning	BOU	Adams, Arapahoe, Douglas, Elbert, Lincoln, Phillips and 2 more	51 hr
Dec 25, 2:05 AM MST	Winter Storm Watch	BOU	Arapahoe, Douglas, Elbert	13 hr
Dec 25, 3:46 AM MST	Winter Storm Watch	PUB	El Paso	11 hr
Dec 25, 3:48 AM MST	High Wind Warning	PUB	El Paso	35 hr
Dec 25, 2:46 PM MST	Blizzard Warning	PUB	El Paso	37 hr
Dec 25, 2:46 PM MST	Winter Weather Advisory	PUB	El Paso, Fremont, Teller	24 hr
Dec 26, 3:33 AM MST	Mesoscale Discussion	SPC	Adams, Kit Carson, Morgan, Washington, Weld, Yuma	5 hr
Dec 26, 4:57 AM MST	Winter Weather Advisory	BOU	Adams, Arapahoe, Broomfield, Denver, Douglas	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
Mesoscale Discussion	1
Special Weather Statement	6
Winter
Blizzard Warning	3
Snow Squall Warning	9
Winter Storm Warning	8
Winter Storm Watch	10
Winter Weather Advisory	20
Wind and dust
High Wind Warning	7
High Wind Watch	6
Fire
Red Flag Warning	1
Fog and smoke
Dense Fog Advisory	10

By county

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

24 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2022 2024

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.