Alert archive / Utah / Grand County

Flash Flood Warnings in Grand County, Utah

122 flash flood warnings since 1986. An alert counts here when it covered this county. The archive of flash flood warnings reaches back to 1986.

Grand County and its neighbors

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

Flash Flood Warnings
122
Busiest year
202417 flash flood warnings
Average year
4over 28 years on file

Over time

By year

Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.

The latest flash flood warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 16, 2:54 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Sep 15, 5:51 PM MDTFlash Flood WarningGJT3 hr
Sep 15, 5:31 PM MDTFlash Flood WarningGJT4 hr
Aug 30, 5:19 PM MDTFlash Flood WarningGJT86 min
Jul 29, 6:11 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Jul 29, 5:44 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Jul 29, 5:19 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Jul 28, 10:27 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Jul 22, 2:28 PM MDTFlash Flood Warning Considerable damage threatGJT6 hr
Jul 21, 6:26 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Jul 20, 9:08 PM MDTFlash Flood Warning Considerable damage threatGJT3 hr
Jul 19, 8:23 PM MDTFlash Flood WarningGJT101 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.