Alert archive / Utah / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Utah, 2009
89 severe thunderstorm warnings in 2009. 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 2009. Tap one for its archive.
- Severe Thunderstorm Warnings
- 89
- Busiest month
- June37 severe thunderstorm warnings
- Busiest day
- September 14, 200929 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 3, 5:08 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 23 min |
| May 5, 3:04 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich | 42 min |
| May 24, 3:15 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 30 min |
| May 24, 4:08 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 29 min |
| May 29, 7:04 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane, San Juan | 41 min |
| Jun 2, 12:51 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Sevier | 54 min |
| Jun 2, 2:35 PM MDT | Severe Thunderstorm Warning | SLC | Utah, Wasatch | 21 min |
| Jun 2, 4:20 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 40 min |
| Jun 2, 4:53 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 52 min |
| Jun 2, 5:05 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 55 min |
| Jun 2, 6:01 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 59 min |
| Jun 2, 6:20 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 29 min |
| Jun 2, 6:22 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 53 min |
| Jun 2, 7:18 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 27 min |
| Jun 2, 7:37 PM MDT | Severe Thunderstorm Warning | SLC | Cache | 38 min |
| Jun 14, 4:52 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 38 min |
| Jun 18, 1:09 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Sanpete | 51 min |
| Jun 21, 12:42 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne | 21 min |
| Jun 21, 12:46 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne, Utah | 29 min |
| Jun 21, 1:15 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne | 45 min |
| Jun 21, 2:17 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Emery | 43 min |
| Jun 21, 2:17 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne | 43 min |
| Jun 21, 2:37 PM MDT | Severe Thunderstorm Warning | SLC | Utah | 53 min |
| Jun 21, 2:54 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 41 min |
| Jun 21, 2:59 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Emery | 31 min |
| Jun 21, 3:00 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 45 min |
| Jun 21, 3:04 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 56 min |
| Jun 21, 3:18 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne | 27 min |
| Jun 21, 3:28 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 62 min |
| Jun 21, 3:40 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 50 min |
| Jun 21, 3:43 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne | 62 min |
| Jun 21, 3:48 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 42 min |
| Jun 21, 4:22 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 68 min |
| Jun 21, 5:22 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich | 53 min |
| Jun 21, 5:30 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Weber | 60 min |
| Jun 21, 5:53 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Morgan, Rich, Weber | 52 min |
| Jun 21, 6:33 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Morgan, Rich, Summit | 31 min |
| Jun 25, 2:21 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 39 min |
| Jun 25, 2:43 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 47 min |
| Jun 25, 3:26 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Davis, Salt Lake, Tooele, Utah, Weber | 64 min |
| Jun 26, 5:54 PM MDT | Severe Thunderstorm Warning | SLC | Cache | 51 min |
| Jun 30, 4:28 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 47 min |
| Jul 1, 5:05 PM MDT | Severe Thunderstorm Warning | SLC | Sanpete, Utah | 40 min |
| Jul 3, 1:03 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 27 min |
| Jul 3, 1:34 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 21 min |
| Jul 4, 2:55 PM MDT | Severe Thunderstorm Warning | SLC | Iron | 50 min |
| Jul 4, 5:54 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 24 min |
| Jul 12, 2:08 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne, Emery, Sanpete, Utah | 52 min |
| Jul 12, 3:42 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne | 63 min |
| Jul 25, 8:03 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 27 min |
| Jul 28, 1:00 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 30 min |
| Jul 28, 3:13 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 47 min |
| Jul 29, 2:58 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, San Juan | 32 min |
| Aug 6, 4:03 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 27 min |
| Aug 6, 4:28 PM MDT | Severe Thunderstorm Warning | GJT | Daggett, Uintah | 47 min |
| Aug 14, 3:28 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne, Utah | 47 min |
| Aug 14, 9:03 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne, Wasatch | 57 min |
| Aug 15, 1:37 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 38 min |
| Aug 15, 2:01 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 44 min |
| Aug 23, 6:07 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Tooele | 23 min |
| Sep 14, 9:41 AM MDT | Severe Thunderstorm Warning | SLC | Millard | 49 min |
| Sep 14, 10:20 AM MDT | Severe Thunderstorm Warning | SLC | Millard | 40 min |
| Sep 14, 10:23 AM MDT | Severe Thunderstorm Warning | SLC | Beaver, Millard | 52 min |
| Sep 14, 10:24 AM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 36 min |
| Sep 14, 11:04 AM MDT | Severe Thunderstorm Warning | SLC | Juab, Millard | 26 min |
| Sep 14, 11:29 AM MDT | Severe Thunderstorm Warning | SLC | Juab, Millard, Tooele | 46 min |
| Sep 14, 12:12 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele, Utah | 48 min |
| Sep 14, 12:15 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Millard | 45 min |
| Sep 14, 12:32 PM MDT | Severe Thunderstorm Warning | SLC | Tooele | 43 min |
| Sep 14, 12:38 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 52 min |
| Sep 14, 12:54 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Millard | 20 min |
| Sep 14, 12:57 PM MDT | Severe Thunderstorm Warning | SLC | Millard | 48 min |
| Sep 14, 1:08 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Davis, Salt Lake, Tooele, Utah, Weber | 52 min |
| Sep 14, 1:28 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 47 min |
| Sep 14, 2:00 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake | 27 min |
| Sep 14, 2:09 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 66 min |
| Sep 14, 3:00 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Duchesne, Utah, Wasatch | 45 min |
| Sep 14, 3:37 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Emery | 53 min |
| Sep 14, 3:46 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne | 44 min |
| Sep 14, 4:00 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 45 min |
| Sep 14, 4:08 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Juab, Sanpete | 35 min |
| Sep 14, 4:17 PM MDT | Severe Thunderstorm Warning | SLC | Emery, Wayne | 43 min |
| Sep 14, 4:28 PM MDT | Severe Thunderstorm Warning | SLC | Carbon, Emery | 24 min |
| Sep 14, 4:30 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne | 60 min |
| Sep 14, 4:30 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Davis, Morgan, Salt Lake, Tooele and 1 more | 75 min |
| Sep 14, 4:39 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 51 min |
| Sep 14, 4:56 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 49 min |
| Sep 14, 5:23 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Wayne | 15 min |
| Sep 14, 5:42 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 48 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Tooele County22
- Box Elder County14
- Duchesne County13
- Emery County11
- Carbon County11
- Utah County10
- Millard County8
- Davis County7
- Cache County7
- Garfield County7
- Kane County7
- Uintah County7
- Salt Lake County6
- Juab County5
- Morgan County5
- Weber County5
- Rich County4
- San Juan County4
- Sanpete County4
- Wasatch County3
- Beaver County3
- Wayne County2
- Grand County1
- Sevier County1
- Summit County1
- Iron County1
- Daggett County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.