Alert archive / Utah / 2020
Weather alerts in Utah, September 2020
33 weather alerts in September 2020, 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 September 2020. Tap one for its archive.
- Alerts
- 33
- Warnings
- 17
- Watches
- 11
- Advisories
- 3
- Busiest day
- September 7, 20208 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 |
|---|---|---|---|---|
| Sep 2, 2:12 PM MDT | Excessive Heat Watch | SLC | 24 hr | |
| Sep 3, 2:29 PM MDT | Fire Weather Watch | SLC | Cache, Carbon, Duchesne, Emery, Morgan, Rich and 7 more | 24 hr |
| Sep 3, 2:32 PM MDT | Excessive Heat Warning | SLC | 4 days | |
| Sep 4, 2:43 PM MDT | Fire Weather Watch | SLC | Beaver, Box Elder, Davis, Garfield, Iron, Juab and 9 more | 48 hr |
| Sep 4, 2:43 PM MDT | Red Flag Warning | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 20 more | 4 days |
| Sep 4, 3:28 PM MDT | Red Flag Warning | GJT | Daggett, Grand, Uintah | 3 days |
| Sep 5, 2:30 AM MDT | Red Flag Warning | GJT | Daggett, Grand, Uintah | 67 hr |
| Sep 6, 2:38 PM MDT | Winter Weather Advisory | SLC | 63 hr | |
| Sep 6, 2:43 PM MDT | High Wind Watch | SLC | 13 hr | |
| Sep 6, 2:43 PM MDT | Wind Advisory | SLC | 55 hr | |
| Sep 6, 9:38 PM MDT | Winter Storm Watch | GJT | Daggett, Uintah | 6 hr |
| Sep 7, 3:36 AM MDT | Winter Storm Warning | GJT | Daggett, Uintah | 3 days |
| Sep 7, 3:36 AM MDT | Winter Weather Advisory | GJT | Grand, Uintah | 50 hr |
| Sep 7, 3:51 AM MDT | High Wind Warning | SLC | 51 hr | |
| Sep 7, 3:51 AM MDT | Hard Freeze Watch | SLC | 11 hr | |
| Sep 7, 2:55 PM MDT | Hard Freeze Warning | SLC | 42 hr | |
| Sep 7, 3:01 PM MDT | Winter Storm Warning | SLC | 39 hr | |
| Sep 7, 4:12 PM MDT | High Wind Warning | GJT | Uintah | 29 hr |
| Sep 8, 3:49 AM MDT | Freeze Warning | GJT | Uintah | 30 hr |
| Sep 13, 11:32 AM MDT | Red Flag Warning | SLC | Cache, Morgan, Rich, Salt Lake, Summit, Utah and 2 more | 33 hr |
| Sep 15, 2:00 PM MDT | Fire Weather Watch | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 20 more | 48 hr |
| Sep 16, 2:49 PM MDT | Red Flag Warning | SLC | Beaver, Box Elder, Cache, Carbon, Davis, Duchesne and 20 more | 3 days |
| Sep 18, 2:12 AM MDT | Fire Weather Watch | GJT | Grand | 11 hr |
| Sep 18, 1:27 PM MDT | Red Flag Warning | GJT | Grand | 31 hr |
| Sep 19, 3:03 PM MDT | Special Weather Statement | SLC | Box Elder | 27 min |
| Sep 19, 5:49 PM MDT | Special Weather Statement | SLC | Rich | 41 min |
| Sep 22, 2:28 PM MDT | Fire Weather Watch | SLC | Cache, Duchesne, Morgan, Rich, Salt Lake, Summit and 3 more | 21 hr |
| Sep 23, 11:34 AM MDT | Red Flag Warning | SLC | Beaver, Cache, Carbon, Duchesne, Emery, Garfield and 17 more | 3 days |
| Sep 23, 1:18 PM MDT | Fire Weather Watch | GJT | Daggett, Grand, Uintah | 14 hr |
| Sep 23, 2:41 PM MDT | Fire Weather Watch | SLC | Carbon, Duchesne, Emery, Garfield, Kane, San Juan and 5 more | 24 hr |
| Sep 24, 3:00 AM MDT | Red Flag Warning | GJT | Daggett, Grand, San Juan, Uintah | 41 hr |
| Sep 25, 2:32 PM MDT | Red Flag Warning | GJT | Grand, Uintah | 29 hr |
| Sep 26, 2:58 PM MDT | Red Flag Warning | SLC | Carbon, Emery, Garfield, Washington, Wayne | 51 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 | |
| Special Weather Statement | 2 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Cold | |
| Freeze Warning | 1 |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 10 |
| Fire Weather Watch | 7 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Uintah County10
- Utah County9
- Rich County8
- Salt Lake County8
- Grand County8
- Cache County7
- Carbon County7
- Duchesne County7
- Emery County7
- Morgan County7
- Sanpete County7
- Summit County7
- Wasatch County7
- Weber County7
- Garfield County7
- San Juan County7
- Washington County7
- Wayne County7
- Sevier County6
- Kane County6
- Daggett County6
- Beaver County5
- Box Elder County5
- Iron County5
- Juab County5
- Millard County5
- Davis County4
- Tooele County4
- Piute County4
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.