Alert archive / Utah

Weather alerts in San Juan County, Utah

2,533 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

San Juan County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
2,533
Warnings
1,062
Watches
516
Advisories
702
Busiest year
2024211 alerts
Average year
68over 37 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 16, 12:34 PM MDTFlash Flood Warning Considerable damage threatSLC2 hr
Sep 16, 12:01 PM MDTFlash Flood Warning Considerable damage threatSLC3 hr
Sep 15, 2:20 PM MDTSevere Thunderstorm WarningGJT25 min
Sep 15, 9:58 AM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Sep 15, 9:49 AM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Aug 30, 3:05 PM MDTSevere Thunderstorm WarningSLC25 min
Aug 30, 2:03 PM MDTFlash Flood Warning Considerable damage threatSLC6 hr
Aug 29, 5:52 PM MDTFlash Flood Warning Considerable damage threatSLC3 hr
Aug 29, 5:23 PM MDTSevere Thunderstorm WarningSLC37 min
Aug 29, 5:12 PM MDTFlash Flood Warning Considerable damage threatSLC5 hr
Aug 29, 4:56 PM MDTSevere Thunderstorm Warning Considerable damage threatSLC34 min
Aug 29, 4:23 PM MDTSevere Thunderstorm WarningSLC37 min

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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. Rebuilt daily.