Alert archive / Utah / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Utah, 2015
112 severe thunderstorm warnings in 2015. 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 2015. Tap one for its archive.
- Severe Thunderstorm Warnings
- 112
- Busiest month
- June43 severe thunderstorm warnings
- Busiest day
- May 27, 201510 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 7, 1:48 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele | 42 min |
| May 7, 1:53 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 52 min |
| May 7, 2:37 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 38 min |
| May 7, 3:34 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 41 min |
| May 7, 3:38 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 52 min |
| May 14, 1:31 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 44 min |
| May 14, 2:14 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 21 min |
| May 14, 2:40 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 17 min |
| May 14, 7:50 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 37 min |
| May 18, 1:25 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 21 min |
| May 18, 1:36 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 24 min |
| May 18, 2:01 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 24 min |
| May 27, 1:51 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 39 min |
| May 27, 2:32 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 28 min |
| May 27, 3:02 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 58 min |
| May 27, 3:36 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 39 min |
| May 27, 4:16 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 29 min |
| May 27, 4:17 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 58 min |
| May 27, 4:39 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 36 min |
| May 27, 4:44 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 31 min |
| May 27, 5:02 PM MDT | Severe Thunderstorm Warning | SLC | Sanpete | 26 min |
| May 27, 5:15 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 30 min |
| May 27, 6:44 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 46 min |
| May 27, 7:31 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Davis, Salt Lake, Tooele, Weber | 44 min |
| May 27, 8:11 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Summit, Weber | 34 min |
| May 28, 2:32 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 58 min |
| May 28, 2:54 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 51 min |
| May 28, 2:58 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Weber | 32 min |
| May 28, 3:27 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Weber | 33 min |
| May 28, 3:29 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 61 min |
| May 28, 4:19 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 35 min |
| May 30, 5:43 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 47 min |
| Jun 1, 5:35 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 40 min |
| Jun 3, 7:11 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 34 min |
| Jun 3, 7:16 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache | 29 min |
| Jun 3, 7:41 PM MDT | Severe Thunderstorm Warning | SLC | Cache | 34 min |
| Jun 3, 7:43 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 32 min |
| Jun 3, 8:11 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 34 min |
| Jun 3, 8:38 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake | 36 min |
| Jun 3, 8:47 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache | 43 min |
| Jun 3, 9:12 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich | 33 min |
| Jun 5, 11:21 AM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 39 min |
| Jun 5, 1:34 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Kane, Washington | 26 min |
| Jun 5, 1:47 PM MDT | Severe Thunderstorm Warning | SLC | Kane, San Juan | 28 min |
| Jun 5, 3:22 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 23 min |
| Jun 5, 3:41 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 49 min |
| Jun 6, 12:03 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 42 min |
| Jun 6, 12:44 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 46 min |
| Jun 6, 1:29 PM MDT | Severe Thunderstorm Warning | SLC | Kane, San Juan | 46 min |
| Jun 6, 1:32 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 12 min |
| Jun 6, 1:45 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 30 min |
| Jun 6, 2:00 PM MDT | Severe Thunderstorm Warning | SLC | Kane, San Juan | 45 min |
| Jun 6, 2:16 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane, San Juan | 15 min |
| Jun 6, 2:44 PM MDT | Severe Thunderstorm Warning | SLC | Kane, San Juan | 46 min |
| Jun 6, 3:11 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 19 min |
| Jun 6, 3:34 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 15 min |
| Jun 6, 6:07 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 23 min |
| Jun 6, 6:30 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 45 min |
| Jun 6, 7:07 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 38 min |
| Jun 6, 7:43 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 47 min |
| Jun 6, 8:25 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 35 min |
| Jun 6, 9:02 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 28 min |
| Jun 10, 11:12 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 33 min |
| Jun 10, 11:12 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 33 min |
| Jun 10, 11:40 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 35 min |
| Jun 11, 12:57 AM MDT | Severe Thunderstorm Warning | GJT | San Juan | 33 min |
| Jun 15, 4:11 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 49 min |
| Jun 15, 5:15 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 30 min |
| Jun 15, 5:59 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake | 31 min |
| Jun 15, 6:30 PM MDT | Severe Thunderstorm Warning | SLC | Rich, Weber | 30 min |
| Jun 15, 6:37 PM MDT | Severe Thunderstorm Warning | SLC | Salt Lake, Tooele, Utah | 23 min |
| Jun 16, 1:40 PM MDT | Severe Thunderstorm Warning | GJT | Daggett, Uintah | 35 min |
| Jun 16, 2:14 PM MDT | Severe Thunderstorm Warning | GJT | Daggett, Uintah | 31 min |
| Jun 16, 4:43 PM MDT | Severe Thunderstorm Warning | GJT | Daggett, Uintah | 32 min |
| Jun 30, 5:29 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 61 min |
| Jun 30, 9:02 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Millard | 58 min |
| Jul 6, 2:52 PM MDT | Severe Thunderstorm Warning | SLC | Salt Lake | 23 min |
| Jul 8, 6:11 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 64 min |
| Jul 8, 7:05 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 55 min |
| Jul 8, 8:07 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 53 min |
| Jul 8, 8:33 PM MDT | Severe Thunderstorm Warning | SLC | Tooele, Utah | 57 min |
| Jul 14, 1:53 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 37 min |
| Jul 14, 2:14 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 31 min |
| Jul 14, 2:45 PM MDT | Severe Thunderstorm Warning | SLC | Carbon | 25 min |
| Jul 15, 3:09 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 51 min |
| Jul 15, 3:25 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 50 min |
| Jul 15, 3:51 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 24 min |
| Jul 15, 4:15 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 15 min |
| Aug 3, 2:27 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 33 min |
| Aug 3, 3:00 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 45 min |
| Aug 3, 3:45 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, San Juan | 60 min |
| Aug 3, 4:50 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 40 min |
| Aug 3, 5:20 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Wayne | 25 min |
| Aug 3, 6:21 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 39 min |
| Aug 3, 6:47 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 43 min |
| Aug 3, 7:18 PM MDT | Severe Thunderstorm Warning | SLC | Wayne | 42 min |
| Aug 3, 7:40 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 50 min |
| Aug 5, 3:07 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 53 min |
| Aug 5, 3:58 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 62 min |
| Aug 5, 4:59 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 31 min |
| Aug 7, 4:24 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 66 min |
| Aug 7, 5:21 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 84 min |
| Aug 7, 6:15 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Davis, Tooele, Weber | 90 min |
| Aug 7, 6:35 PM MDT | Severe Thunderstorm Warning | SLC | Salt Lake | 85 min |
| Aug 7, 7:18 PM MDT | Severe Thunderstorm Warning | SLC | Morgan, Summit, Weber | 87 min |
| Aug 7, 8:10 PM MDT | Severe Thunderstorm Warning | SLC | Rich, Summit | 70 min |
| Aug 26, 5:01 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 29 min |
| Oct 7, 4:24 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 36 min |
| Oct 18, 2:39 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 25 min |
| Oct 18, 3:12 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 63 min |
| Oct 18, 4:03 PM MDT | Severe Thunderstorm Warning | SLC | Kane, Washington | 27 min |
| Oct 18, 6:06 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 39 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Box Elder County27
- San Juan County22
- Tooele County20
- Kane County14
- Uintah County11
- Garfield County9
- Weber County7
- Emery County7
- Salt Lake County6
- Cache County6
- Davis County5
- Millard County4
- Summit County3
- Grand County3
- Rich County3
- Washington County3
- Daggett County3
- Juab County2
- Morgan County2
- Iron County2
- Utah County2
- Wayne County2
- Sanpete County1
- Carbon County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.