Alert archive / Utah / 2021
Weather alerts in Utah, September 2021
105 weather alerts in September 2021, 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 2021. Tap one for its archive.
- Alerts
- 105
- Warnings
- 32
- Watches
- 3
- Advisories
- 3
- Busiest day
- September 11, 202123 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 |
|---|---|---|---|---|
| Aug 31, 6:17 PM MDT | Special Weather Statement | SLC | Tooele | 43 min |
| Aug 31, 7:22 PM MDT | Special Weather Statement | SLC | Davis | 38 min |
| Sep 1, 1:37 AM MDT | Areal Flood Advisory | SLC | Washington | 3 hr |
| Sep 1, 8:21 AM MDT | Flash Flood Warning | SLC | Kane, Washington | 3 hr |
| Sep 1, 3:25 PM MDT | Special Weather Statement | SLC | Iron | 35 min |
| Sep 1, 4:59 PM MDT | Flash Flood Warning | SLC | Garfield, Wayne | 2 hr |
| Sep 1, 9:26 PM MDT | Areal Flood Warning | SLC | Wayne | 10 hr |
| Sep 1, 9:51 PM MDT | Areal Flood Warning | SLC | Garfield, San Juan, Wayne | 7 hr |
| Sep 2, 4:53 AM MDT | Areal Flood Warning | SLC | Garfield, Wayne | 3 hr |
| Sep 2, 2:41 PM MDT | Mesoscale Discussion | SPC | Box Elder, Davis, Morgan, Salt Lake, Tooele, Weber | 3 hr |
| Sep 2, 4:35 PM MDT | Special Weather Statement | SLC | Duchesne | 25 min |
| Sep 2, 4:38 PM MDT | Special Weather Statement | SLC | Garfield | 37 min |
| Sep 2, 4:40 PM MDT | Special Weather Statement | SLC | Tooele | 35 min |
| Sep 2, 5:33 PM MDT | Flash Flood Warning | SLC | Garfield | 3 hr |
| Sep 2, 5:52 PM MDT | Special Weather Statement | SLC | Salt Lake | 23 min |
| Sep 2, 5:58 PM MDT | Special Weather Statement | SLC | Davis | 32 min |
| Sep 2, 6:13 PM MDT | Special Weather Statement | SLC | Salt Lake | 32 min |
| Sep 2, 6:29 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake | 31 min |
| Sep 2, 6:59 PM MDT | Special Weather Statement | SLC | Morgan | 31 min |
| Sep 2, 7:31 PM MDT | Special Weather Statement | SLC | Summit | 29 min |
| Sep 2, 7:49 PM MDT | Severe Thunderstorm Warning | SLC | Rich, Summit | 26 min |
| Sep 3, 2:46 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 44 min |
| Sep 3, 2:51 PM MDT | Special Weather Statement | RIW | Daggett | 39 min |
| Sep 3, 3:24 PM MDT | Special Weather Statement | GJT | Uintah | 51 min |
| Sep 3, 3:57 PM MDT | Special Weather Statement | GJT | Daggett | 33 min |
| Sep 3, 4:18 PM MDT | Special Weather Statement | GJT | Uintah | 27 min |
| Sep 3, 4:47 PM MDT | Special Weather Statement | GJT | Uintah | 28 min |
| Sep 6, 3:04 AM MDT | Excessive Heat Warning | SLC | Iron, Kane, Washington | 66 hr |
| Sep 10, 7:25 AM MDT | Special Weather Statement | SLC | Iron | 50 min |
| Sep 10, 1:38 PM MDT | Special Weather Statement | SLC | Sanpete | 52 min |
| Sep 10, 2:04 PM MDT | Special Weather Statement | SLC | Salt Lake | 41 min |
| Sep 10, 2:07 PM MDT | Special Weather Statement | SLC | Sevier | 38 min |
| Sep 10, 2:23 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake, Weber | 37 min |
| Sep 10, 3:56 PM MDT | Special Weather Statement | SLC | Summit | 49 min |
| Sep 10, 4:29 PM MDT | Special Weather Statement | SLC | Tooele | 61 min |
| Sep 10, 4:38 PM MDT | Special Weather Statement | SLC | Rich | 52 min |
| Sep 10, 4:41 PM MDT | Special Weather Statement | SLC | Box Elder | 64 min |
| Sep 10, 5:04 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 26 min |
| Sep 10, 5:51 PM MDT | Special Weather Statement | SLC | Davis | 54 min |
| Sep 10, 6:06 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Weber | 39 min |
| Sep 10, 6:20 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Weber | 25 min |
| Sep 10, 6:42 PM MDT | Special Weather Statement | SLC | Morgan, Weber | 33 min |
| Sep 10, 6:42 PM MDT | Special Weather Statement | SLC | Davis | 33 min |
| Sep 10, 6:50 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 25 min |
| Sep 10, 7:10 PM MDT | Special Weather Statement | SLC | Salt Lake, Utah | 50 min |
| Sep 10, 7:10 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake, Weber | 35 min |
| Sep 10, 7:16 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake | 29 min |
| Sep 10, 7:24 PM MDT | Special Weather Statement | SLC | Rich | 51 min |
| Sep 10, 7:24 PM MDT | Special Weather Statement | SLC | Cache | 51 min |
| Sep 10, 7:38 PM MDT | Special Weather Statement | SLC | Cache, Morgan, Rich, Weber | 52 min |
| Sep 11, 12:50 PM MDT | Flash Flood Warning | SLC | Wayne | 3 hr |
| Sep 11, 12:54 PM MDT | Special Weather Statement | SLC | Carbon | 51 min |
| Sep 11, 1:39 PM MDT | Special Weather Statement | SLC | Duchesne | 51 min |
| Sep 11, 1:40 PM MDT | Flash Flood Warning | SLC | Carbon | 3 hr |
| Sep 11, 3:17 PM MDT | Special Weather Statement | SLC | Duchesne | 43 min |
| Sep 11, 4:19 PM MDT | Mesoscale Discussion | SPC | Box Elder, Davis, Juab, Tooele | 86 min |
| Sep 11, 4:25 PM MDT | Special Weather Statement | SLC | Millard | 35 min |
| Sep 11, 5:10 PM MDT | Special Weather Statement | SLC | Juab | 35 min |
| Sep 11, 5:13 PM MDT | Special Weather Statement | GJT | Grand | 32 min |
| Sep 11, 5:19 PM MDT | Special Weather Statement | SLC | Millard | 26 min |
| Sep 11, 5:38 PM MDT | Special Weather Statement | GJT | Grand | 37 min |
| Sep 11, 5:44 PM MDT | Special Weather Statement | SLC | Millard | 46 min |
| Sep 11, 6:19 PM MDT | Flash Flood Warning | SLC | Emery, Garfield, Wayne | 3 hr |
| Sep 11, 6:30 PM MDT | Special Weather Statement | SLC | Juab | 45 min |
| Sep 11, 7:16 PM MDT | Special Weather Statement | SLC | Juab | 44 min |
| Sep 11, 7:24 PM MDT | Special Weather Statement | SLC | 51 min | |
| Sep 11, 8:15 PM MDT | Flash Flood Warning | SLC | Garfield, Wayne | 3 hr |
| Sep 11, 8:22 PM MDT | Special Weather Statement | SLC | Sanpete | 38 min |
| Sep 11, 9:06 PM MDT | Special Weather Statement | SLC | Sanpete | 39 min |
| Sep 12, 3:29 PM MDT | Special Weather Statement | SLC | Box Elder | 46 min |
| Sep 12, 3:37 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 23 min |
| Sep 12, 3:54 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 51 min |
| Sep 12, 4:13 PM MDT | Special Weather Statement | SLC | Box Elder | 47 min |
| Sep 12, 4:31 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 44 min |
| Sep 12, 4:42 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 24 min |
| Sep 12, 4:59 PM MDT | Mesoscale Discussion | SPC | Box Elder, Cache, Rich, Weber | 91 min |
| Sep 12, 5:08 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 20 min |
| Sep 12, 5:14 PM MDT | Special Weather Statement | SLC | 46 min | |
| Sep 12, 5:54 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 51 min |
| Sep 12, 6:46 PM MDT | Special Weather Statement | SLC | Box Elder | 44 min |
| Sep 12, 7:35 PM MDT | Special Weather Statement | SLC | 40 min | |
| Sep 12, 8:09 PM MDT | Special Weather Statement | SLC | 51 min | |
| Sep 12, 8:23 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 37 min |
| Sep 12, 8:57 PM MDT | Special Weather Statement | SLC | Box Elder | 48 min |
| Sep 12, 8:59 PM MDT | Special Weather Statement | SLC | Box Elder | 46 min |
| Sep 15, 1:30 AM MDT | Fire Weather Watch | GJT | Grand | 12 hr |
| Sep 15, 1:24 PM MDT | Red Flag Warning | GJT | Grand | 30 hr |
| Sep 18, 11:25 AM MDT | Special Weather Statement | SLC | Iron | 50 min |
| Sep 18, 11:59 AM MDT | Mesoscale Discussion | SPC | Carbon, Duchesne, Emery, Garfield, Kane, Piute and 6 more | 2 hr |
| Sep 18, 1:07 PM MDT | Special Weather Statement | FGZ | Kane | 23 min |
| Sep 18, 1:07 PM MDT | Special Weather Statement | SLC | Sanpete | 38 min |
| Sep 18, 1:51 PM MDT | Special Weather Statement | SLC | Utah, Wasatch | 39 min |
| Sep 18, 2:43 PM MDT | Flash Flood Warning | SLC | Emery | 3 hr |
| Sep 18, 3:12 PM MDT | High Wind Watch | SLC | Utah | 12 hr |
| Sep 18, 3:15 PM MDT | Special Weather Statement | SLC | Duchesne | 45 min |
| Sep 18, 4:41 PM MDT | Special Weather Statement | GJT | Daggett | 34 min |
| Sep 18, 4:52 PM MDT | Special Weather Statement | GJT | Grand | 53 min |
| Sep 19, 2:59 AM MDT | Hard Freeze Watch | SLC | Beaver, Cache, Garfield, Iron, Morgan, Piute and 7 more | 31 hr |
| Sep 19, 2:59 AM MDT | Wind Advisory | SLC | Utah | 17 hr |
| Sep 20, 2:59 AM MDT | Hard Freeze Warning | SLC | Beaver, Cache, Garfield, Iron, Morgan, Piute and 7 more | 30 hr |
| Sep 27, 6:10 PM MDT | Special Weather Statement | SLC | Kane | 35 min |
| Sep 27, 7:59 PM MDT | Special Weather Statement | SLC | Iron | 46 min |
| Sep 28, 10:46 AM MDT | Wind Advisory | SLC | Box Elder, Salt Lake, Tooele, Utah | 10 hr |
| Sep 28, 3:10 PM MDT | Flash Flood Warning | SLC | Wayne | 3 hr |
| Sep 28, 7:52 PM MDT | Special Weather Statement | SLC | Emery | 38 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 17 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 63 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 9 |
| Areal Flood Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Cold | |
| Hard Freeze Warning | 1 |
| Hard Freeze Watch | 1 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Box Elder County19
- Davis County12
- Salt Lake County11
- Garfield County10
- Morgan County10
- Weber County10
- Wayne County9
- Tooele County7
- Iron County7
- Rich County7
- Sanpete County7
- Summit County6
- Utah County6
- Washington County5
- Kane County5
- Duchesne County5
- Cache County5
- Grand County5
- Uintah County4
- Sevier County4
- Juab County4
- Emery County4
- Wasatch County4
- Daggett County3
- Carbon County3
- Millard County3
- Piute County3
- Beaver County2
- San Juan 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. Rebuilt daily.