Alert archive / Utah / Winter Storm Warnings
Winter Storm Warnings in Utah, 2021
18 winter storm warnings in 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 storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Winter Storm Warnings
- 18
- Busiest month
- December10 winter storm warnings
- Busiest day
- February 12, 20212 winter storm warnings
Over time
By month
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 |
|---|---|---|---|---|
| Jan 24, 1:06 PM MST | Winter Storm Warning | SLC | 45 hr | |
| Feb 10, 2:39 PM MST | Winter Storm Warning | SLC | 54 hr | |
| Feb 12, 2:14 PM MST | Winter Storm Warning | GJT | Grand, San Juan | 51 hr |
| Feb 12, 2:36 PM MST | Winter Storm Warning | SLC | 43 hr | |
| Feb 15, 3:41 AM MST | Winter Storm Warning | SLC | 61 hr | |
| Mar 12, 3:47 AM MST | Winter Storm Warning | GJT | Daggett, Uintah | 3 days |
| Mar 12, 2:09 PM MST | Winter Storm Warning | SLC | 51 hr | |
| Oct 11, 3:10 PM MDT | Winter Storm Warning | SLC | Beaver, Carbon, Duchesne, Emery, Garfield, Iron and 11 more | 33 hr |
| Dec 8, 12:16 PM MST | Winter Storm Warning | GJT | Daggett, Grand, San Juan, Uintah | 54 hr |
| Dec 8, 3:35 PM MST | Winter Storm Warning | SLC | Beaver, Carbon, Duchesne, Emery, Garfield, Iron and 14 more | 48 hr |
| Dec 13, 2:31 PM MST | Winter Storm Warning | GJT | Daggett, Grand, San Juan, Uintah | 47 hr |
| Dec 13, 3:55 PM MST | Winter Storm Warning | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 19 more | 43 hr |
| Dec 22, 3:12 AM MST | Winter Storm Warning | SLC | Box Elder, Cache, Carbon, Davis, Duchesne, Emery and 9 more | 3 days |
| Dec 22, 3:34 AM MST | Winter Storm Warning | GJT | Daggett, Uintah | 3 days |
| Dec 25, 2:13 AM MST | Winter Storm Warning | SLC | Beaver, Box Elder, Cache, Davis, Duchesne, Garfield and 13 more | 36 hr |
| Dec 25, 2:59 PM MST | Winter Storm Warning | GJT | Daggett, Uintah | 4 days |
| Dec 27, 4:02 AM MST | Winter Storm Warning | SLC | Box Elder, Cache, Davis, Duchesne, Iron, Juab and 9 more | 31 hr |
| Dec 29, 2:53 PM MST | Winter Storm Warning | GJT | Grand, San Juan | 72 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Duchesne County6
- Juab County6
- Summit County6
- Utah County6
- Wasatch County6
- Daggett County5
- Uintah County5
- Iron County5
- Kane County5
- Washington County5
- Morgan County5
- Salt Lake County5
- Weber County5
- Grand County4
- San Juan County4
- Beaver County4
- Carbon County4
- Emery County4
- Garfield County4
- Piute County4
- Sanpete County4
- Wayne County4
- Box Elder County4
- Cache County4
- Davis County4
- Rich County4
- Millard County3
- Sevier County3
- Tooele County1
The busiest days
Days with the most alerts issued, by UTC date.
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. Rebuilt daily.