Alert archive / Utah / Salt Lake County

Weather alerts in Salt Lake County, Utah, 2025

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

Salt Lake County and its neighbors

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

Alerts
91
Warnings
23
Watches
7
Advisories
32
Busiest month
March16 alerts
Busiest day
May 11, 20259 alerts

Over time

By month

Warning verification

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

Salt Lake County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings770%1323%18 min
Flash flood warnings00

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
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 1, 2:05 AM MSTWinter Weather AdvisorySLC36 hr
Jan 3, 1:49 AM MSTWinter Weather AdvisorySLC43 hr
Jan 6, 2:36 PM MSTWind AdvisorySLC45 hr
Jan 10, 2:32 PM MSTWinter Weather AdvisorySLC29 hr
Jan 12, 2:59 AM MSTSpecial Weather StatementSLC61 min
Jan 24, 1:46 PM MSTWinter Weather AdvisorySLC33 hr
Jan 29, 2:46 PM MSTWinter Storm WatchSLC23 hr
Jan 30, 2:15 PM MSTWinter Storm WarningSLC3 days
Feb 6, 2:14 AM MSTWind AdvisorySLC40 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 15, 4:52 PM MSTWinter Weather AdvisorySLC67 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 5, 3:03 AM MSTWinter Weather AdvisorySLC57 hr
Mar 11, 3:26 PM MDTWind AdvisorySLC51 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 13, 1:38 PM MDTSpecial Weather StatementSLC37 min
Mar 14, 5:54 PM MDTWinter Weather AdvisorySLC30 hr
Mar 16, 1:32 PM MDTWinter Weather AdvisorySLC58 hr
Mar 16, 1:48 PM MDTWind AdvisorySLC36 hr
Mar 17, 4:35 AM MDTWinter Storm WarningSLC43 hr
Mar 17, 8:39 PM MDTHigh Wind WarningSLC23 hr
Mar 21, 2:50 AM MDTWinter Weather AdvisorySLC37 hr
Mar 30, 12:59 PM MDTWinter Weather AdvisorySLC55 hr
May 11, 1:40 AM MDTWind AdvisorySLC46 hr
May 11, 12:30 PM MDTMesoscale DiscussionSPC2 hr
May 11, 12:59 PM MDTSevere Thunderstorm WarningSLC31 min
May 11, 1:12 PM MDTSevere Thunderstorm WatchSPC7 hr
May 11, 1:25 PM MDTSevere Thunderstorm WarningSLC35 min
May 11, 2:00 PM MDTSevere Thunderstorm Warning Considerable damage threatSLC45 min
May 11, 2:38 PM MDTSevere Thunderstorm WarningSLC37 min
May 11, 3:14 PM MDTSevere Thunderstorm Warning Considerable damage threatSLC46 min
May 11, 4:34 PM MDTMesoscale DiscussionSPC116 min
May 11, 7:51 PM MDTSpecial Weather StatementSLC39 min
May 17, 1:34 AM MDTWinter Weather AdvisorySLC40 hr
May 17, 12:56 PM MDTMesoscale DiscussionSPC2 hr
Jun 17, 2:38 PM MDTRed Flag WarningSLC4 days
Jun 18, 2:07 AM MDTHeat AdvisorySLC45 hr
Jun 20, 1:33 AM MDTWind AdvisorySLC19 hr
Jun 20, 2:05 PM MDTWind AdvisorySLC34 hr
Jun 30, 2:19 PM MDTHeat AdvisorySLC34 hr
Jul 1, 4:18 PM MDTSpecial Weather StatementSLC27 min
Jul 2, 4:59 PM MDTSpecial Weather StatementSLC46 min
Jul 2, 5:07 PM MDTSevere Thunderstorm WarningSLC23 min
Jul 4, 12:20 PM MDTMesoscale DiscussionSPC115 min
Jul 4, 3:23 PM MDTSpecial Weather StatementSLC37 min
Jul 4, 5:21 PM MDTSevere Thunderstorm WarningSLC39 min
Jul 4, 5:29 PM MDTSpecial Weather StatementSLC46 min
Jul 14, 2:28 PM MDTRed Flag WarningSLC33 hr
Jul 15, 2:50 PM MDTMesoscale DiscussionSPC2 hr
Jul 15, 5:14 PM MDTSpecial Weather StatementSLC46 min
Jul 15, 5:29 PM MDTSpecial Weather StatementSLC46 min
Jul 18, 7:45 PM MDTSpecial Weather StatementSLC30 min
Jul 20, 3:54 PM MDTSpecial Weather StatementSLC36 min
Jul 21, 9:39 AM MDTRed Flag WarningSLC11 hr
Aug 2, 1:42 PM MDTRed Flag WarningSLC7 days
Aug 12, 12:36 PM MDTFire Weather WatchSLC25 hr
Aug 12, 12:36 PM MDTRed Flag WarningSLC32 hr
Aug 13, 1:16 PM MDTRed Flag WarningSLC32 hr
Aug 14, 1:40 PM MDTMesoscale DiscussionSPC3 hr
Aug 15, 5:10 PM MDTSpecial Weather StatementSLC35 min
Aug 15, 6:32 PM MDTSpecial Weather StatementSLC28 min
Sep 7, 2:23 PM MDTSpecial Weather StatementSLC52 min
Sep 9, 2:19 PM MDTRed Flag WarningSLC31 hr
Sep 21, 2:12 PM MDTSpecial Weather StatementSLC33 min
Sep 21, 2:13 PM MDTSpecial Weather StatementSLC32 min
Sep 21, 2:45 PM MDTSpecial Weather StatementSLC45 min
Sep 21, 8:10 PM MDTSpecial Weather StatementSLC35 min
Oct 4, 4:31 AM MDTSpecial Weather StatementSLC44 min
Oct 4, 6:09 AM MDTSpecial Weather StatementSLC51 min
Oct 4, 9:37 AM MDTAreal Flood AdvisorySLC3 hr
Oct 11, 1:56 PM MDTMesoscale DiscussionSPC3 hr
Oct 11, 4:20 PM MDTHigh Wind WarningSLC6 hr
Oct 11, 5:59 PM MDTSpecial Weather StatementSLC46 min
Oct 15, 11:47 AM MDTSpecial Weather StatementSLC43 min
Oct 25, 2:05 PM MDTWinter Weather AdvisorySLC46 hr
Nov 22, 11:11 PM MSTDense Fog AdvisorySLC11 hr
Nov 29, 1:20 PM MSTWinter Weather AdvisorySLC33 hr
Dec 3, 1:02 PM MSTWinter Storm WatchSLC24 hr
Dec 4, 12:59 PM MSTWinter Storm WarningSLC49 hr
Dec 16, 10:05 AM MSTHigh Wind WarningSLC40 hr
Dec 16, 2:07 PM MSTWind AdvisorySLC36 hr
Dec 19, 9:38 AM MSTWind AdvisorySLC12 hr
Dec 23, 1:49 PM MSTWind AdvisorySLC3 days
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.