Alert archive / Colorado / Winter Weather Advisories / 2021

Winter Weather Advisories in Colorado, March 2021

18 winter weather advisories in March 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter weather advisories reaches back to 2005.

Winter Weather Advisories by county

Each county as a circle sized by its count in March 2021. Tap one for its archive.

Winter Weather Advisories: 18
Busiest day: March 12, 20214 winter weather advisories

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
Mar 3, 3:10 AM MST	Winter Weather Advisory	GJT	Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan and 1 more	34 hr
Mar 3, 3:50 AM MST	Winter Weather Advisory	PUB	Conejos, Costilla, Custer, El Paso, Fremont, Huerfano and 5 more	48 hr
Mar 3, 2:40 PM MST	Winter Weather Advisory	BOU	Arapahoe, Boulder, Clear Creek, Douglas, Elbert, Gilpin and 6 more	33 hr
Mar 9, 2:40 AM MST	Winter Weather Advisory	BOU	Boulder, Grand, Jackson, Larimer	38 hr
Mar 9, 2:51 AM MST	Winter Weather Advisory	GJT	Moffat, Routt	38 hr
Mar 12, 3:47 AM MST	Winter Weather Advisory	GJT	Archuleta, Delta, Dolores, Eagle, Garfield, Gunnison and 11 more	3 days
Mar 12, 4:26 AM MST	Winter Weather Advisory	PUB	Chaffee, Conejos, Huerfano, Las Animas, Mineral, Pueblo and 2 more	64 hr
Mar 12, 2:17 PM MST	Winter Weather Advisory	BOU	Elbert, Grand, Jackson, Lincoln, Logan, Park and 2 more	63 hr
Mar 12, 2:39 PM MST	Winter Weather Advisory	GLD	Cheyenne, Kit Carson, Yuma	18 hr
Mar 15, 9:36 PM MDT	Winter Weather Advisory	PUB	Bent, Conejos, Costilla, Custer, Fremont, Mineral and 6 more	34 hr
Mar 20, 2:32 PM MDT	Winter Weather Advisory	GJT	Eagle, Garfield, Pitkin	32 hr
Mar 21, 2:43 AM MDT	Winter Weather Advisory	BOU	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 5 more	31 hr
Mar 21, 4:02 AM MDT	Winter Weather Advisory	PUB	Alamosa, Chaffee, Costilla, Custer, El Paso, Fremont and 5 more	35 hr
Mar 22, 2:43 PM MDT	Winter Weather Advisory	GJT	Archuleta, Dolores, Gunnison, Hinsdale, La Plata, Montezuma and 4 more	51 hr
Mar 22, 2:57 PM MDT	Winter Weather Advisory	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 8 more	51 hr
Mar 23, 9:11 PM MDT	Winter Weather Advisory	BOU	Arapahoe, Douglas, Elbert	11 hr
Mar 24, 9:35 PM MDT	Winter Weather Advisory	GJT	Archuleta, Delta, Dolores, Garfield, Hinsdale, La Plata and 6 more	40 hr
Mar 24, 9:37 PM MDT	Winter Weather Advisory	PUB	Conejos, Mineral, Rio Grande	40 hr

By county

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

17 more counties

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