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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings4325%367%13 min
Flash flood warnings010%

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Salt Lake City, UT: severe thunderstorm warnings1003763%27225%16 min
NWS Salt Lake City, UT: flash flood warnings683450%5869%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.

IssuedProductOfficeLasted
Jan 4, 2:01 PM MSTWinter Weather AdvisorySLC33 hr
Jan 5, 2:03 PM MSTWinter Storm WatchSLC24 hr
Jan 6, 1:37 PM MSTWinter Weather AdvisorySLC39 hr
Jan 8, 4:00 AM MSTWinter Storm WatchSLC10 hr
Jan 8, 1:59 PM MSTWinter Storm WarningSLC62 hr
Jan 10, 1:37 PM MSTWinter Storm WatchSLC38 hr
Jan 11, 3:53 PM MSTWinter Storm WarningSLC4 days
Jan 16, 2:04 AM MSTWinter Weather AdvisorySLC54 hr
Jan 24, 3:03 AM MSTWinter Weather AdvisorySLC48 hr
Jan 31, 2:38 AM MSTWinter Weather AdvisorySLC4 days
Feb 4, 2:22 PM MSTWinter Storm WatchSLC37 hr
Feb 5, 2:45 PM MSTWinter Storm WarningSLC3 days
Feb 14, 3:08 AM MSTWinter Weather AdvisorySLC62 hr
Feb 19, 2:43 AM MSTWinter Weather AdvisorySLC71 hr
Feb 24, 2:57 AM MSTWinter Storm WatchSLC24 hr
Feb 25, 3:01 AM MSTWinter Storm WarningSLC62 hr
Feb 28, 1:49 PM MSTWind AdvisorySLC3 days
Feb 29, 3:07 AM MSTWinter Storm WatchSLC34 hr
Feb 29, 3:07 AM MSTWinter Storm WarningSLC4 days
Mar 11, 1:20 PM MDTWinter Weather AdvisorySLC5 days
Mar 13, 2:44 PM MDTWind AdvisorySLC45 hr
Mar 23, 2:50 AM MDTWinter Weather AdvisorySLC44 hr
Mar 27, 2:50 PM MDTWinter Weather AdvisorySLC33 hr
Mar 29, 1:41 PM MDTWinter Weather AdvisorySLC57 hr
Apr 3, 2:07 PM MDTHigh Wind WatchSLC24 hr
Apr 4, 2:08 PM MDTWind AdvisorySLC31 hr
Apr 5, 3:13 AM MDTWinter Weather AdvisorySLC45 hr
Apr 14, 2:33 PM MDTWinter Weather AdvisorySLC30 hr
Apr 25, 1:15 PM MDTWinter Weather AdvisorySLC62 hr
May 3, 2:16 PM MDTWind AdvisorySLC56 hr
May 3, 2:52 PM MDTWinter Storm WarningSLC4 days
May 6, 11:11 AM MDTWind AdvisorySLC9 hr
Jun 1, 6:00 PM MDTSpecial Weather StatementSLC45 min
Jun 6, 9:16 AM MDTRiver Flood WatchSLC51 hr
Jun 17, 2:53 AM MDTWind AdvisorySLC24 hr
Jun 20, 2:11 AM MDTFlood WatchSLC42 hr
Jun 21, 11:10 AM MDTMesoscale DiscussionSPC2 hr
Jun 21, 12:02 PM MDTSevere Thunderstorm WatchSPC8 hr
Jun 21, 2:11 PM MDTMesoscale DiscussionSPC94 min
Jun 21, 2:34 PM MDTSevere Thunderstorm WarningSLC26 min
Jun 22, 2:32 PM MDTMesoscale DiscussionSPC2 hr
Jun 22, 3:58 PM MDTSpecial Weather StatementSLC47 min
Jun 26, 7:56 PM MDTSpecial Weather StatementSLC34 min
Jun 27, 12:43 PM MDTMesoscale DiscussionSPC3 hr
Jun 27, 1:17 PM MDTSevere Thunderstorm WatchSPC6 hr
Jun 27, 3:13 PM MDTSpecial Weather StatementSLC47 min
Jun 27, 4:24 PM MDTAreal Flood AdvisorySLC3 hr
Jun 27, 4:24 PM MDTSevere Thunderstorm WarningSLC36 min
Jul 2, 2:35 PM MDTRed Flag WarningSLC54 hr
Jul 3, 12:48 PM MDTExcessive Heat WarningSLC10 days
Jul 4, 1:28 PM MDTFire Weather WatchSLC25 hr
Jul 5, 2:20 PM MDTRed Flag WarningSLC55 hr
Jul 8, 2:05 PM MDTExcessive Heat WatchSLC48 hr
Jul 13, 2:33 PM MDTRed Flag WarningSLC30 hr
Jul 14, 2:12 PM MDTSpecial Weather StatementSLC48 min
Jul 25, 2:32 AM MDTFire Weather WatchSLC35 hr
Jul 26, 1:39 PM MDTRed Flag WarningSLC4 days
Jul 27, 1:06 PM MDTMesoscale DiscussionSPC3 hr
Jul 27, 3:25 PM MDTSpecial Weather StatementSLC35 min
Jul 27, 4:23 PM MDTSpecial Weather StatementSLC37 min
Jul 28, 1:44 PM MDTRed Flag WarningSLC56 hr
Aug 2, 2:10 AM MDTHeat AdvisorySLC43 hr
Aug 3, 1:00 PM MDTHeat AdvisorySLC3 days
Aug 5, 1:19 PM MDTSpecial Weather StatementSLC26 min
Aug 5, 1:44 PM MDTSpecial Weather StatementSLC31 min
Aug 7, 2:27 PM MDTSpecial Weather StatementSLC18 min
Aug 10, 2:18 PM MDTFlood WatchSLC34 hr
Aug 16, 11:27 AM MDTFlood WatchSLC35 hr
Aug 17, 1:01 PM MDTSevere Thunderstorm WatchSPC6 hr
Aug 17, 1:19 PM MDTSevere Thunderstorm WarningSLC41 min
Aug 18, 10:08 AM MDTFlood WatchSLC12 hr
Aug 25, 10:27 AM MDTMesoscale DiscussionSPC2 hr
Aug 25, 12:55 PM MDTSevere Thunderstorm WarningSLC50 min
Aug 25, 1:17 PM MDTAreal Flood AdvisorySLC3 hr
Aug 25, 1:22 PM MDTSevere Thunderstorm WatchSPC7 hr
Aug 25, 1:35 PM MDTSpecial Weather StatementSLC40 min
Aug 25, 1:38 PM MDTAreal Flood AdvisorySLC3 hr
Aug 25, 1:59 PM MDTSpecial Weather StatementSLC46 min
Aug 25, 2:23 PM MDTSpecial Weather StatementSLC52 min
Sep 3, 12:31 PM MDTMesoscale DiscussionSPC119 min
Sep 4, 3:14 PM MDTSpecial Weather StatementSLC31 min
Oct 2, 12:01 PM MDTFire Weather WatchSLC24 hr
Oct 2, 12:01 PM MDTRed Flag WarningSLC9 hr
Oct 3, 12:25 PM MDTRed Flag WarningSLC33 hr
Oct 15, 2:09 AM MDTWinter Storm WatchSLC25 hr
Oct 16, 2:39 AM MDTWinter Storm WatchSLC13 hr
Oct 16, 2:39 AM MDTWinter Storm WarningSLC3 days
Oct 16, 2:44 AM MDTFreeze WatchSLC47 hr
Oct 16, 3:35 PM MDTWinter Weather AdvisorySLC46 hr
Oct 18, 1:58 AM MDTFreeze WarningSLC31 hr
Oct 27, 2:15 PM MDTWinter Weather AdvisorySLC64 hr
Oct 28, 10:25 AM MDTFreeze WatchSLC17 hr
Oct 29, 3:07 AM MDTFreeze WarningSLC31 hr
Nov 1, 3:12 PM MDTWinter Weather AdvisorySLC51 hr
Nov 11, 3:25 AM MSTWinter Weather AdvisorySLC40 hr
Nov 14, 2:22 PM MSTWinter Weather AdvisorySLC46 hr
Nov 22, 2:09 PM MSTWinter Weather AdvisorySLC46 hr
Nov 24, 2:52 PM MSTWinter Storm WatchSLC12 hr
Nov 25, 3:02 AM MSTWinter Storm WarningSLC53 hr
Dec 13, 2:30 PM MSTWinter Weather AdvisorySLC47 hr
Dec 25, 10:59 AM MSTWinter Storm WatchSLC3 hr
Dec 25, 2:25 PM MSTWinter Storm WarningSLC3 days
Dec 29, 2:57 AM MSTWinter Weather AdvisorySLC32 hr
Dec 29, 3:23 AM MSTDense Fog AdvisorySLC5 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.