Alert archive / Utah / Winter Weather Advisories / 2021
Winter Weather Advisories in Utah, December 2021
12 winter weather advisories in December 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 December 2021. Tap one for its archive.
- Winter Weather Advisories
- 12
- Busiest day
- December 22, 20212 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 |
|---|---|---|---|---|
| Dec 8, 3:35 PM MST | Winter Weather Advisory | SLC | Beaver, Box Elder, Cache, Davis, Garfield, Iron and 14 more | 48 hr |
| Dec 13, 3:55 PM MST | Winter Weather Advisory | SLC | Beaver, Box Elder, Cache, Davis, Emery, Garfield and 17 more | 43 hr |
| Dec 15, 2:44 PM MST | Winter Weather Advisory | SLC | Box Elder, Cache, Carbon, Davis, Duchesne, Emery and 9 more | 41 hr |
| Dec 22, 3:34 AM MST | Winter Weather Advisory | GJT | Grand, San Juan, Uintah | 3 days |
| Dec 22, 2:18 PM MST | Winter Weather Advisory | SLC | Beaver, Carbon, Duchesne, Emery, Garfield, Iron and 13 more | 66 hr |
| Dec 25, 2:13 AM MST | Winter Weather Advisory | SLC | Beaver, Box Elder, Cache, Carbon, Duchesne, Emery and 12 more | 34 hr |
| Dec 25, 2:59 PM MST | Winter Weather Advisory | GJT | Grand, San Juan | 4 days |
| Dec 26, 12:12 PM MST | Winter Weather Advisory | SLC | Morgan, Rich, Summit, Wasatch, Weber | 2 hr |
| Dec 26, 3:49 PM MST | Winter Weather Advisory | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 19 more | 52 hr |
| Dec 27, 4:02 AM MST | Winter Weather Advisory | GJT | Grand, San Juan | 52 hr |
| Dec 28, 3:42 PM MST | Winter Weather Advisory | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 19 more | 4 days |
| Dec 29, 2:53 PM MST | Winter Weather Advisory | GJT | Daggett, Grand, Uintah | 62 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Morgan County8
- Rich County8
- Summit County8
- Weber County8
- Juab County7
- Sanpete County7
- Wasatch County7
- Beaver County6
- Box Elder County6
- Cache County6
- Iron County6
- Millard County6
- Sevier County6
- Utah County6
- Washington County6
- Emery County6
- Davis County5
- Garfield County5
- Kane County5
- Piute County5
- Salt Lake County5
- Carbon County5
- Duchesne County5
- Tooele County4
- Wayne County4
- Grand County4
- San Juan County3
- Uintah County2
- Daggett County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.