Alert archive / Utah / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Utah, 2021
121 severe thunderstorm 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 121
- Busiest month
- August48 severe thunderstorm warnings
- Busiest day
- August 17, 202112 severe thunderstorm 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 |
|---|---|---|---|---|
| May 16, 1:22 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 23 min |
| May 16, 2:03 PM MDT | Severe Thunderstorm Warning | SLC | Morgan, Weber | 27 min |
| May 16, 2:29 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Weber | 31 min |
| May 16, 3:00 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Weber | 30 min |
| May 16, 3:24 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 51 min |
| Jun 4, 4:42 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 33 min |
| Jun 24, 1:22 PM MDT | Severe Thunderstorm Warning | SLC | Tooele, Utah | 23 min |
| Jun 29, 4:03 PM MDT | Severe Thunderstorm Warning | SLC | Kane, San Juan | 27 min |
| Jul 14, 3:31 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 29 min |
| Jul 14, 4:01 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 44 min |
| Jul 14, 4:39 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 66 min |
| Jul 14, 5:35 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 40 min |
| Jul 14, 6:25 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 50 min |
| Jul 14, 7:12 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 18 min |
| Jul 14, 7:34 PM MDT | Severe Thunderstorm Warning | GJT | Grand, San Juan | 26 min |
| Jul 14, 7:53 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 69 min |
| Jul 15, 7:08 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 52 min |
| Jul 16, 5:04 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 56 min |
| Jul 18, 4:31 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 24 min |
| Jul 19, 3:22 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 38 min |
| Jul 22, 1:20 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 25 min |
| Jul 22, 2:13 PM MDT | Severe Thunderstorm Warning | SLC | Beaver | 32 min |
| Jul 22, 2:58 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 32 min |
| Jul 22, 3:30 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | |
| Jul 22, 4:02 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 28 min |
| Jul 22, 4:28 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 32 min |
| Jul 22, 7:07 PM MDT | Severe Thunderstorm Warning | SLC | Salt Lake, Utah | 23 min |
| Jul 22, 7:21 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake, Summit | 24 min |
| Jul 22, 8:29 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 31 min |
| Jul 24, 2:24 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 21 min |
| Jul 24, 3:16 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 29 min |
| Jul 24, 3:40 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 35 min |
| Jul 24, 4:04 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 26 min |
| Jul 24, 4:30 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 30 min |
| Jul 25, 3:49 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 26 min |
| Jul 25, 5:26 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 19 min |
| Jul 25, 5:42 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 33 min |
| Jul 26, 1:37 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 23 min |
| Jul 26, 3:01 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 29 min |
| Jul 26, 3:07 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 23 min |
| Jul 26, 3:20 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 2 min |
| Jul 26, 3:30 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 30 min |
| Jul 26, 4:00 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 30 min |
| Jul 28, 3:50 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 25 min |
| Jul 29, 2:00 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 30 min |
| Jul 29, 2:39 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 36 min |
| Jul 29, 4:48 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Iron | 27 min |
| Jul 29, 4:54 PM MDT | Severe Thunderstorm Warning | SLC | Piute, Sevier | 36 min |
| Jul 29, 5:42 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 33 min |
| Jul 29, 7:41 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Wayne | 34 min |
| Jul 31, 1:30 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 30 min |
| Jul 31, 2:47 PM MDT | Severe Thunderstorm Warning | SLC | Morgan, Rich, Summit | 28 min |
| Jul 31, 3:16 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Weber | 29 min |
| Jul 31, 4:00 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 30 min |
| Jul 31, 6:58 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 32 min |
| Aug 1, 2:52 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele | 38 min |
| Aug 1, 4:11 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele | 34 min |
| Aug 1, 5:30 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 45 min |
| Aug 1, 6:09 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 51 min |
| Aug 1, 6:47 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 43 min |
| Aug 1, 7:25 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake | 35 min |
| Aug 2, 3:24 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 66 min |
| Aug 13, 4:20 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 25 min |
| Aug 13, 4:40 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 35 min |
| Aug 13, 5:14 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 16 min |
| Aug 14, 5:25 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 36 min |
| Aug 14, 7:01 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 33 min |
| Aug 17, 1:50 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 20 min |
| Aug 17, 2:23 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Garfield, Piute | 52 min |
| Aug 17, 3:29 PM MDT | Severe Thunderstorm Warning | SLC | Sevier | 46 min |
| Aug 17, 3:51 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 24 min |
| Aug 17, 4:12 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 48 min |
| Aug 17, 4:29 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 46 min |
| Aug 17, 4:39 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 66 min |
| Aug 17, 4:56 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 24 min |
| Aug 17, 5:00 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 30 min |
| Aug 17, 5:12 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 63 min |
| Aug 17, 5:30 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake | 45 min |
| Aug 17, 5:40 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 50 min |
| Aug 17, 6:10 PM MDT | Severe Thunderstorm Warning | SLC | Juab | 35 min |
| Aug 17, 6:31 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 59 min |
| Aug 17, 6:49 PM MDT | Severe Thunderstorm Warning | SLC | Utah, Wasatch | 26 min |
| Aug 17, 7:14 PM MDT | Severe Thunderstorm Warning | SLC | Summit, Wasatch | 31 min |
| Aug 18, 11:05 AM MDT | Severe Thunderstorm Warning | SLC | Tooele | 40 min |
| Aug 18, 12:34 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele | 56 min |
| Aug 18, 1:24 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele, Utah | 81 min |
| Aug 18, 4:36 PM MDT | Severe Thunderstorm Warning | GJT | Grand, San Juan | 24 min |
| Aug 18, 4:57 PM MDT | Severe Thunderstorm Warning | GJT | Grand, San Juan | 33 min |
| Aug 19, 1:32 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 28 min |
| Aug 21, 5:27 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Weber | 48 min |
| Aug 21, 5:42 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 33 min |
| Aug 21, 5:52 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache | 38 min |
| Aug 21, 6:06 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Rich, Salt Lake and 3 more | 39 min |
| Aug 21, 6:29 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich | 61 min |
| Aug 21, 6:40 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Rich, Salt Lake and 3 more | 50 min |
| Aug 21, 7:08 PM MDT | Severe Thunderstorm Warning | SLC | Summit | 37 min |
| Aug 21, 8:19 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne, Summit | 26 min |
| Aug 26, 2:50 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Wayne | 25 min |
| Aug 26, 3:09 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 36 min |
| Aug 26, 3:13 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Wayne | 32 min |
| Aug 26, 4:28 PM MDT | Severe Thunderstorm Warning | GJT | Grand, San Juan | 32 min |
| Aug 26, 5:02 PM MDT | Severe Thunderstorm Warning | GJT | Grand, San Juan | 28 min |
| Sep 2, 6:29 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake | 31 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 10, 2:23 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake, Weber | 37 min |
| Sep 10, 5:04 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 26 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, 6:50 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 25 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 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, 4:31 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, 5:08 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 20 min |
| Sep 12, 5:54 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 51 min |
| Sep 12, 8:23 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 37 min |
| Oct 8, 3:36 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 24 min |
| Oct 8, 3:56 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 30 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Tooele County23
- Box Elder County20
- Washington County20
- Iron County19
- Davis County17
- Salt Lake County16
- Weber County11
- Morgan County10
- Garfield County10
- San Juan County7
- Beaver County7
- Summit County7
- Grand County6
- Cache County6
- Utah County5
- Rich County5
- Juab County5
- Emery County4
- Millard County4
- Wayne County3
- Kane County2
- Piute County2
- Sevier County2
- Wasatch County2
- Duchesne County1
- Uintah 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.