Alert archive / Utah / Duchesne County

Weather alerts in Duchesne County, Utah, 2026

87 weather alerts in 2026, 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 2026. Tap one for its archive.

Alerts
87
Warnings
27
Watches
20
Advisories
18
Busiest month
August20 alerts
Busiest day
May 13, 20264 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, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings5420%30%
Flash flood warnings010%

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Salt Lake City, UT: tornado warnings4250%450%9 min
NWS Salt Lake City, UT: severe thunderstorm warnings1446158%33846%22 min
NWS Salt Lake City, UT: flash flood warnings1348834%14675%104 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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 3, 1:47 AM MSTWinter Weather AdvisorySLC63 hr
Jan 6, 1:43 PM MSTWinter Weather AdvisorySLC64 hr
Feb 10, 1:47 AM MSTWinter Weather AdvisorySLC63 hr
Feb 15, 1:21 PM MSTWinter Storm WatchSLC15 hr
Feb 16, 4:04 AM MSTWinter Storm WarningSLC3 days
Feb 16, 4:04 AM MSTWinter Weather AdvisorySLC23 hr
Feb 19, 2:22 AM MSTWinter Weather AdvisorySLC32 hr
Feb 23, 2:32 PM MSTWinter Weather AdvisorySLC50 hr
Mar 3, 3:42 PM MSTWinter Storm WatchSLC21 hr
Mar 3, 3:42 PM MSTWinter Weather AdvisorySLC3 days
Mar 10, 9:19 AM MDTWind AdvisorySLC11 hr
Mar 11, 10:33 AM MDTWind AdvisorySLC33 hr
Mar 13, 1:02 PM MDTHigh Wind WarningSLC41 hr
Mar 13, 1:02 PM MDTWind AdvisorySLC47 hr
Mar 31, 1:40 PM MDTWinter Weather AdvisorySLC22 hr
Apr 1, 12:36 PM MDTWinter Weather AdvisorySLC37 hr
Apr 11, 12:23 PM MDTMesoscale DiscussionSPC2 hr
Apr 11, 1:50 PM MDTSpecial Weather StatementSLC40 min
Apr 11, 2:44 PM MDTMesoscale DiscussionSPC2 hr
Apr 13, 10:24 AM MDTFreeze WatchSLC12 hr
Apr 13, 10:24 AM MDTFreeze WarningSLC47 hr
Apr 14, 10:34 PM MDTFreeze WatchSLC12 hr
Apr 15, 10:56 AM MDTFreeze WarningSLC49 hr
Apr 15, 10:56 AM MDTFreeze WarningSLC70 hr
Apr 17, 10:15 PM MDTFreeze WatchSLC14 hr
Apr 18, 11:47 AM MDTFreeze WarningSLC22 hr
Apr 21, 10:22 PM MDTFreeze WarningSLC36 hr
Apr 22, 9:54 AM MDTFreeze WatchSLC8 hr
Apr 22, 6:05 PM MDTFreeze WarningSLC39 hr
Apr 26, 2:25 PM MDTFreeze WatchSLC20 hr
Apr 27, 10:27 AM MDTFreeze WarningSLC23 hr
Apr 27, 10:27 AM MDTFreeze WarningSLC47 hr
Apr 29, 9:56 AM MDTFreeze WarningSLC47 hr
May 5, 2:08 PM MDTFreeze WarningSLC19 hr
May 6, 10:16 AM MDTFreeze WarningSLC23 hr
May 13, 1:52 PM MDTSevere Thunderstorm WatchSPC6 hr
May 13, 3:48 PM MDTSevere Thunderstorm WarningSLC27 min
May 13, 4:05 PM MDTSevere Thunderstorm Warning Considerable damage threatSLC55 min
May 13, 4:40 PM MDTSpecial Weather StatementSLC50 min
May 16, 11:10 AM MDTWinter Weather AdvisorySLC55 hr
May 17, 10:45 AM MDTFreeze WarningSLC46 hr
May 25, 12:43 PM MDTFire Weather WatchSLC47 hr
Jun 4, 11:23 AM MDTFire Weather WatchSLC4 days
Jun 5, 12:11 PM MDTRed Flag WarningSLC58 hr
Jun 7, 12:05 PM MDTRed Flag WarningSLC3 days
Jun 14, 12:25 PM MDTFire Weather WatchSLC20 hr
Jun 15, 8:11 AM MDTRed Flag WarningSLC61 hr
Jun 18, 11:02 AM MDTFire Weather WatchSLC24 hr
Jun 19, 11:09 AM MDTRed Flag WarningSLC35 hr
Jun 23, 11:14 AM MDTFire Weather WatchSLC23 hr
Jun 24, 10:36 AM MDTRed Flag WarningSLC12 hr
Jun 24, 10:36 AM MDTRed Flag WarningSLC4 days
Jun 26, 12:18 PM MDTWind AdvisorySLC34 hr
Jul 8, 10:37 AM MDTExtreme Heat WatchSLC24 hr
Jul 9, 10:55 AM MDTExtreme Heat WarningSLC5 days
Jul 20, 12:15 PM MDTFlood WatchSLC39 hr
Jul 21, 2:23 PM MDTMesoscale DiscussionSPC2 hr
Jul 22, 7:50 AM MDTFlood WatchSLC13 hr
Jul 24, 9:09 AM MDTHeat AdvisorySLC4 days
Jul 29, 12:15 PM MDTHeat AdvisorySLC4 days
Jul 29, 12:15 PM MDTExtreme Heat WatchSLC27 hr
Aug 1, 11:23 AM MDTRed Flag WarningSLC3 days
Aug 2, 8:42 PM MDTHeat AdvisorySLC24 hr
Aug 5, 9:46 AM MDTHeat AdvisorySLC4 days
Aug 13, 5:16 PM MDTMesoscale DiscussionSPC119 min
Aug 22, 1:38 PM MDTSpecial Weather StatementSLC52 min
Aug 22, 2:04 PM MDTSevere Thunderstorm WarningSLC41 min
Aug 22, 2:44 PM MDTSpecial Weather StatementSLC31 min
Aug 22, 3:31 PM MDTSpecial Weather StatementSLC44 min
Aug 23, 1:53 PM MDTSpecial Weather StatementSLC52 min
Aug 23, 4:56 PM MDTMesoscale DiscussionSPC94 min
Aug 24, 1:03 PM MDTMesoscale DiscussionSPC117 min
Aug 25, 2:51 PM MDTSpecial Weather StatementSLC24 min
Aug 26, 2:42 PM MDTSpecial Weather StatementSLC33 min
Aug 28, 4:30 PM MDTSevere Thunderstorm WarningSLC45 min
Aug 28, 5:09 PM MDTSevere Thunderstorm WarningSLC51 min
Aug 29, 11:31 AM MDTMesoscale DiscussionSPC2 hr
Aug 29, 3:19 PM MDTFlood WatchSLC54 hr
Aug 29, 7:01 PM MDTSpecial Weather StatementSLC29 min
Aug 30, 6:23 PM MDTSpecial Weather StatementSLC52 min
Aug 30, 7:07 PM MDTSpecial Weather StatementSLC38 min
Sep 2, 1:09 PM MDTMesoscale DiscussionSPC2 hr
Sep 2, 1:44 PM MDTSpecial Weather StatementSLC46 min
Sep 5, 10:23 AM MDTFlood WatchSLC33 hr
Sep 15, 11:58 AM MDTFlood WatchSLC58 hr
Sep 16, 2:53 PM MDTMesoscale DiscussionSPC2 hr
Sep 18, 2:30 PM MDTSpecial Weather StatementSLC45 min

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 archive2025

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.