Alert archive / Utah / Sevier County

Weather alerts in Sevier County, Utah, 2025

63 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sevier County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts
63
Warnings
20
Watches
13
Advisories
20
Busiest month
March13 alerts
Busiest day
February 12, 20253 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Sevier County, 2025

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

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Grand Junction, CO: tornado warnings5180%333%19 min
NWS Grand Junction, CO: severe thunderstorm warnings721283%3549%16 min
NWS Grand Junction, CO: flash flood warnings441077%3148%73 min
NWS Salt Lake City, UT: severe thunderstorm warnings572261%15525%22 min
NWS Salt Lake City, UT: flash flood warnings451860%4947%68 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 3, 1:49 AM MSTWinter Weather AdvisorySLC43 hr
Jan 10, 2:32 PM MSTWinter Weather AdvisorySLC29 hr
Feb 11, 1:44 PM MSTWinter Storm WatchSLC25 hr
Feb 12, 3:01 AM MSTWinter Storm WarningSLC4 days
Feb 12, 2:50 PM MSTWinter Weather AdvisorySLC50 hr
Feb 12, 2:52 PM MSTWind AdvisorySLC35 hr
Feb 19, 2:56 PM MSTWinter Weather AdvisorySLC32 hr
Mar 1, 2:20 PM MSTWinter Weather AdvisorySLC69 hr
Mar 4, 1:52 PM MSTWinter Storm WatchSLC13 hr
Mar 5, 3:03 AM MSTWinter Storm WarningSLC62 hr
Mar 6, 2:28 AM MSTWind AdvisorySLC18 hr
Mar 11, 3:26 PM MDTWinter Storm WatchSLC24 hr
Mar 12, 3:06 PM MDTWinter Storm WarningSLC51 hr
Mar 12, 3:06 PM MDTWinter Weather AdvisorySLC3 days
Mar 16, 1:32 PM MDTWinter Weather AdvisorySLC58 hr
Mar 16, 1:48 PM MDTWind AdvisorySLC36 hr
Mar 17, 8:39 PM MDTHigh Wind WarningSLC23 hr
Mar 18, 1:58 AM MDTWind AdvisorySLC18 hr
Mar 30, 3:00 AM MDTWind AdvisorySLC45 hr
Mar 30, 12:59 PM MDTWinter Weather AdvisorySLC55 hr
Apr 16, 2:30 PM MDTWinter Weather AdvisorySLC61 hr
Apr 16, 6:27 PM MDTSpecial Weather StatementSLC33 min
May 12, 2:00 PM MDTWind AdvisorySLC31 hr
May 17, 1:34 AM MDTWinter Weather AdvisorySLC40 hr
May 18, 2:36 AM MDTFreeze WatchSLC31 hr
May 18, 2:36 AM MDTFreeze WarningSLC31 hr
May 19, 9:54 AM MDTFreeze WarningSLC24 hr
Jun 15, 2:27 AM MDTRed Flag WarningSLC46 hr
Jun 17, 2:38 PM MDTRed Flag WarningSLC4 days
Jun 20, 2:05 PM MDTWind AdvisorySLC34 hr
Jun 30, 2:28 PM MDTRed Flag WarningSLC31 hr
Jul 1, 2:30 PM MDTSpecial Weather StatementSLC45 min
Jul 1, 3:07 PM MDTSpecial Weather StatementSLC38 min
Jul 7, 2:18 PM MDTFire Weather WatchSLC23 hr
Jul 8, 1:08 PM MDTRed Flag WarningSLC32 hr
Jul 14, 2:28 PM MDTRed Flag WarningSLC33 hr
Jul 15, 4:50 PM MDTSpecial Weather StatementSLC40 min
Jul 24, 2:42 PM MDTFire Weather WatchSLC15 hr
Jul 25, 5:17 AM MDTRed Flag WarningSLC9 days
Aug 1, 2:29 PM MDTFire Weather WatchSLC23 hr
Aug 2, 1:42 PM MDTRed Flag WarningSLC7 days
Aug 12, 12:36 PM MDTFire Weather WatchSLC25 hr
Aug 13, 1:16 PM MDTRed Flag WarningSLC32 hr
Aug 14, 3:55 PM MDTSpecial Weather StatementSLC35 min
Aug 26, 9:42 AM MDTFlood WatchSLC13 hr
Aug 27, 11:05 AM MDTFlood WatchSLC10 hr
Sep 13, 10:39 AM MDTSpecial Weather StatementSLC36 min
Sep 13, 11:02 AM MDTSpecial Weather StatementSLC28 min
Oct 3, 12:54 AM MDTWind AdvisorySLC19 hr
Oct 5, 3:58 PM MDTFreeze WarningSLC17 hr
Oct 8, 1:05 PM MDTFlood WatchSLC3 days
Oct 9, 5:06 PM MDTSpecial Weather StatementSLC39 min
Oct 9, 5:47 PM MDTSpecial Weather StatementSLC43 min
Oct 11, 1:56 PM MDTMesoscale DiscussionSPC3 hr
Oct 15, 2:17 PM MDTFreeze WatchSLC24 hr
Oct 15, 2:17 PM MDTFreeze WarningSLC19 hr
Oct 16, 2:08 PM MDTFreeze WarningSLC19 hr
Oct 26, 2:04 PM MDTFreeze WatchSLC13 hr
Oct 27, 3:06 AM MDTFreeze WarningSLC30 hr
Nov 29, 1:20 PM MSTWinter Weather AdvisorySLC33 hr
Dec 4, 12:59 PM MSTWinter Storm WarningSLC49 hr
Dec 16, 10:05 AM MSTHigh Wind WarningSLC40 hr
Dec 24, 2:01 PM MSTWinter Weather AdvisorySLC4 days

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 archive20242026

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.