Alert archive / Utah / Flash Flood Warnings / 2026

Flash Flood Warnings in Utah, August 2026

54 flash flood warnings in August 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.

Flash Flood Warnings by county

Each county as a circle sized by its count in August 2026. Tap one for its archive.

Flash Flood Warnings: 54
Busiest day: August 31, 202613 flash flood warnings

Over time

By day

Days in UTC, the clock the archive keeps.

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.

Issued	Product	Office	Counties	Lasted
Aug 9, 3:21 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 9, 6:52 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Aug 10, 12:57 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Aug 10, 3:17 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Beaver	4 hr
Aug 11, 1:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Piute	3 hr
Aug 11, 2:47 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Aug 11, 3:29 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	5 hr
Aug 12, 5:48 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	4 hr
Aug 12, 6:15 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	3 hr
Aug 13, 3:16 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Aug 13, 3:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	5 hr
Aug 13, 3:28 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Aug 13, 3:32 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Aug 13, 3:38 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Aug 13, 6:22 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Tooele	3 hr
Aug 14, 9:08 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	4 hr
Aug 14, 9:23 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	4 hr
Aug 14, 9:33 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	4 hr
Aug 21, 5:01 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	119 min
Aug 22, 1:48 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Aug 23, 1:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Aug 23, 3:19 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	5 hr
Aug 24, 1:34 PM MDT	Flash Flood Warning Considerable damage threat	GJT	San Juan	4 hr
Aug 24, 2:43 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	4 hr
Aug 24, 4:07 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	9 hr
Aug 28, 3:05 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Kane, Washington	3 hr
Aug 29, 1:37 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	3 hr
Aug 29, 3:43 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	7 hr
Aug 29, 4:12 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	7 hr
Aug 29, 4:35 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	3 hr
Aug 29, 5:12 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, San Juan	5 hr
Aug 29, 5:52 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, San Juan	3 hr
Aug 30, 1:12 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Aug 30, 2:03 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane, San Juan	6 hr
Aug 30, 2:16 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	3 hr
Aug 30, 2:19 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	5 hr
Aug 30, 2:28 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	7 hr
Aug 30, 2:46 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	5 hr
Aug 30, 2:56 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	5 hr
Aug 30, 3:37 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	4 hr
Aug 30, 5:19 PM MDT	Flash Flood Warning	GJT	Grand	86 min
Aug 31, 6:37 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	4 hr
Aug 31, 9:50 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 31, 10:19 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Aug 31, 10:46 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	4 hr
Aug 31, 11:04 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	14 hr
Aug 31, 11:16 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	5 hr
Aug 31, 12:20 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 31, 1:00 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Aug 31, 1:48 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	10 hr
Aug 31, 1:52 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Piute	3 hr
Aug 31, 2:22 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Aug 31, 3:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Piute	3 hr
Aug 31, 3:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	9 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

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.