Alert archive / Utah / Duchesne County
Weather alerts in Duchesne County, Utah, 2024
104 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Duchesne County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 104
- Warnings
- 23
- Watches
- 26
- Advisories
- 34
- Busiest month
- August18 alerts
- Busiest day
- August 25, 20248 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Duchesne County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 3 | 25% | 3 | 67% | 13 min |
| Flash flood warnings | 0 | 1 | 0% |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Salt Lake City, UT: severe thunderstorm warnings | 100 | 37 | 63% | 272 | 25% | 16 min |
| NWS Salt Lake City, UT: flash flood warnings | 68 | 34 | 50% | 58 | 69% | 97 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 | Lasted |
|---|---|---|---|
| Jan 4, 2:01 PM MST | Winter Weather Advisory | SLC | 33 hr |
| Jan 5, 2:03 PM MST | Winter Storm Watch | SLC | 24 hr |
| Jan 6, 1:37 PM MST | Winter Weather Advisory | SLC | 39 hr |
| Jan 8, 4:00 AM MST | Winter Storm Watch | SLC | 10 hr |
| Jan 8, 1:59 PM MST | Winter Storm Warning | SLC | 62 hr |
| Jan 10, 1:37 PM MST | Winter Storm Watch | SLC | 38 hr |
| Jan 11, 3:53 PM MST | Winter Storm Warning | SLC | 4 days |
| Jan 16, 2:04 AM MST | Winter Weather Advisory | SLC | 54 hr |
| Jan 24, 3:03 AM MST | Winter Weather Advisory | SLC | 48 hr |
| Jan 31, 2:38 AM MST | Winter Weather Advisory | SLC | 4 days |
| Feb 4, 2:22 PM MST | Winter Storm Watch | SLC | 37 hr |
| Feb 5, 2:45 PM MST | Winter Storm Warning | SLC | 3 days |
| Feb 14, 3:08 AM MST | Winter Weather Advisory | SLC | 62 hr |
| Feb 19, 2:43 AM MST | Winter Weather Advisory | SLC | 71 hr |
| Feb 24, 2:57 AM MST | Winter Storm Watch | SLC | 24 hr |
| Feb 25, 3:01 AM MST | Winter Storm Warning | SLC | 62 hr |
| Feb 28, 1:49 PM MST | Wind Advisory | SLC | 3 days |
| Feb 29, 3:07 AM MST | Winter Storm Watch | SLC | 34 hr |
| Feb 29, 3:07 AM MST | Winter Storm Warning | SLC | 4 days |
| Mar 11, 1:20 PM MDT | Winter Weather Advisory | SLC | 5 days |
| Mar 13, 2:44 PM MDT | Wind Advisory | SLC | 45 hr |
| Mar 23, 2:50 AM MDT | Winter Weather Advisory | SLC | 44 hr |
| Mar 27, 2:50 PM MDT | Winter Weather Advisory | SLC | 33 hr |
| Mar 29, 1:41 PM MDT | Winter Weather Advisory | SLC | 57 hr |
| Apr 3, 2:07 PM MDT | High Wind Watch | SLC | 24 hr |
| Apr 4, 2:08 PM MDT | Wind Advisory | SLC | 31 hr |
| Apr 5, 3:13 AM MDT | Winter Weather Advisory | SLC | 45 hr |
| Apr 14, 2:33 PM MDT | Winter Weather Advisory | SLC | 30 hr |
| Apr 25, 1:15 PM MDT | Winter Weather Advisory | SLC | 62 hr |
| May 3, 2:16 PM MDT | Wind Advisory | SLC | 56 hr |
| May 3, 2:52 PM MDT | Winter Storm Warning | SLC | 4 days |
| May 6, 11:11 AM MDT | Wind Advisory | SLC | 9 hr |
| Jun 1, 6:00 PM MDT | Special Weather Statement | SLC | 45 min |
| Jun 6, 9:16 AM MDT | River Flood Watch | SLC | 51 hr |
| Jun 17, 2:53 AM MDT | Wind Advisory | SLC | 24 hr |
| Jun 20, 2:11 AM MDT | Flood Watch | SLC | 42 hr |
| Jun 21, 11:10 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 12:02 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 21, 2:11 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jun 21, 2:34 PM MDT | Severe Thunderstorm Warning | SLC | 26 min |
| Jun 22, 2:32 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 3:58 PM MDT | Special Weather Statement | SLC | 47 min |
| Jun 26, 7:56 PM MDT | Special Weather Statement | SLC | 34 min |
| Jun 27, 12:43 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 1:17 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 27, 3:13 PM MDT | Special Weather Statement | SLC | 47 min |
| Jun 27, 4:24 PM MDT | Areal Flood Advisory | SLC | 3 hr |
| Jun 27, 4:24 PM MDT | Severe Thunderstorm Warning | SLC | 36 min |
| Jul 2, 2:35 PM MDT | Red Flag Warning | SLC | 54 hr |
| Jul 3, 12:48 PM MDT | Excessive Heat Warning | SLC | 10 days |
| Jul 4, 1:28 PM MDT | Fire Weather Watch | SLC | 25 hr |
| Jul 5, 2:20 PM MDT | Red Flag Warning | SLC | 55 hr |
| Jul 8, 2:05 PM MDT | Excessive Heat Watch | SLC | 48 hr |
| Jul 13, 2:33 PM MDT | Red Flag Warning | SLC | 30 hr |
| Jul 14, 2:12 PM MDT | Special Weather Statement | SLC | 48 min |
| Jul 25, 2:32 AM MDT | Fire Weather Watch | SLC | 35 hr |
| Jul 26, 1:39 PM MDT | Red Flag Warning | SLC | 4 days |
| Jul 27, 1:06 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 3:25 PM MDT | Special Weather Statement | SLC | 35 min |
| Jul 27, 4:23 PM MDT | Special Weather Statement | SLC | 37 min |
| Jul 28, 1:44 PM MDT | Red Flag Warning | SLC | 56 hr |
| Aug 2, 2:10 AM MDT | Heat Advisory | SLC | 43 hr |
| Aug 3, 1:00 PM MDT | Heat Advisory | SLC | 3 days |
| Aug 5, 1:19 PM MDT | Special Weather Statement | SLC | 26 min |
| Aug 5, 1:44 PM MDT | Special Weather Statement | SLC | 31 min |
| Aug 7, 2:27 PM MDT | Special Weather Statement | SLC | 18 min |
| Aug 10, 2:18 PM MDT | Flood Watch | SLC | 34 hr |
| Aug 16, 11:27 AM MDT | Flood Watch | SLC | 35 hr |
| Aug 17, 1:01 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 17, 1:19 PM MDT | Severe Thunderstorm Warning | SLC | 41 min |
| Aug 18, 10:08 AM MDT | Flood Watch | SLC | 12 hr |
| Aug 25, 10:27 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 25, 12:55 PM MDT | Severe Thunderstorm Warning | SLC | 50 min |
| Aug 25, 1:17 PM MDT | Areal Flood Advisory | SLC | 3 hr |
| Aug 25, 1:22 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 25, 1:35 PM MDT | Special Weather Statement | SLC | 40 min |
| Aug 25, 1:38 PM MDT | Areal Flood Advisory | SLC | 3 hr |
| Aug 25, 1:59 PM MDT | Special Weather Statement | SLC | 46 min |
| Aug 25, 2:23 PM MDT | Special Weather Statement | SLC | 52 min |
| Sep 3, 12:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Sep 4, 3:14 PM MDT | Special Weather Statement | SLC | 31 min |
| Oct 2, 12:01 PM MDT | Fire Weather Watch | SLC | 24 hr |
| Oct 2, 12:01 PM MDT | Red Flag Warning | SLC | 9 hr |
| Oct 3, 12:25 PM MDT | Red Flag Warning | SLC | 33 hr |
| Oct 15, 2:09 AM MDT | Winter Storm Watch | SLC | 25 hr |
| Oct 16, 2:39 AM MDT | Winter Storm Watch | SLC | 13 hr |
| Oct 16, 2:39 AM MDT | Winter Storm Warning | SLC | 3 days |
| Oct 16, 2:44 AM MDT | Freeze Watch | SLC | 47 hr |
| Oct 16, 3:35 PM MDT | Winter Weather Advisory | SLC | 46 hr |
| Oct 18, 1:58 AM MDT | Freeze Warning | SLC | 31 hr |
| Oct 27, 2:15 PM MDT | Winter Weather Advisory | SLC | 64 hr |
| Oct 28, 10:25 AM MDT | Freeze Watch | SLC | 17 hr |
| Oct 29, 3:07 AM MDT | Freeze Warning | SLC | 31 hr |
| Nov 1, 3:12 PM MDT | Winter Weather Advisory | SLC | 51 hr |
| Nov 11, 3:25 AM MST | Winter Weather Advisory | SLC | 40 hr |
| Nov 14, 2:22 PM MST | Winter Weather Advisory | SLC | 46 hr |
| Nov 22, 2:09 PM MST | Winter Weather Advisory | SLC | 46 hr |
| Nov 24, 2:52 PM MST | Winter Storm Watch | SLC | 12 hr |
| Nov 25, 3:02 AM MST | Winter Storm Warning | SLC | 53 hr |
| Dec 13, 2:30 PM MST | Winter Weather Advisory | SLC | 47 hr |
| Dec 25, 10:59 AM MST | Winter Storm Watch | SLC | 3 hr |
| Dec 25, 2:25 PM MST | Winter Storm Warning | SLC | 3 days |
| Dec 29, 2:57 AM MST | Winter Weather Advisory | SLC | 32 hr |
| Dec 29, 3:23 AM MST | Dense Fog Advisory | SLC | 5 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 | |
| Severe Thunderstorm Warning | 4 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 14 |
| Flooding | |
| Flood Watch | 4 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Warning | 9 |
| Winter Storm Watch | 10 |
| Winter Weather Advisory | 22 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Wind and dust | |
| High Wind Watch | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 7 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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. Warning verification from the Mesonet's Cow. Rebuilt daily.