Alert archive / Utah / Flash Flood Warnings

Flash Flood Warnings in Utah, 2021

157 flash flood warnings in 2021. 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 2021. Tap one for its archive.

Flash Flood Warnings: 157
Busiest month: July87 flash flood warnings
Busiest day: August 18, 202116 flash flood warnings

Over time

By month

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
Jun 29, 1:53 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Jun 29, 2:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jun 29, 2:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jun 29, 4:40 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 1, 4:57 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Jul 9, 3:53 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 13, 2:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Jul 13, 2:35 PM MDT	Flash Flood Warning	GJT	Grand, Uintah	3 hr
Jul 13, 3:03 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Jul 14, 2:27 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Carbon	2 hr
Jul 14, 3:45 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane, San Juan	6 hr
Jul 14, 7:07 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 15, 8:39 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Beaver, Iron	3 hr
Jul 16, 12:39 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 16, 1:05 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 16, 1:27 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 16, 1:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 16, 3:47 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 19, 1:44 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	5 hr
Jul 19, 2:34 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	3 hr
Jul 19, 3:04 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Jul 19, 5:57 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	3 hr
Jul 19, 8:19 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	86 min
Jul 20, 12:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Jul 20, 1:18 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	4 hr
Jul 20, 3:26 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	6 hr
Jul 20, 3:41 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 20, 4:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Jul 21, 8:41 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	6 hr
Jul 22, 2:13 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 22, 2:34 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 22, 3:08 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Jul 22, 3:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	5 hr
Jul 22, 3:46 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	7 hr
Jul 22, 5:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Utah	3 hr
Jul 22, 7:23 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Utah	82 min
Jul 23, 2:34 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 24, 12:56 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 24, 1:34 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	4 hr
Jul 24, 2:13 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 24, 3:35 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Jul 24, 3:42 PM MDT	Flash Flood Warning	GJT	San Juan	2 hr
Jul 24, 3:47 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Jul 24, 4:07 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 24, 4:12 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	3 hr
Jul 24, 5:24 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 24, 8:08 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 25, 2:25 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Jul 25, 3:30 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Grand, San Juan	3 hr
Jul 25, 4:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Jul 25, 4:52 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Kane, Washington	4 hr
Jul 25, 5:16 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 25, 11:35 PM MDT	Flash Flood Warning	GJT	Grand	115 min
Jul 26, 1:13 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Jul 26, 1:40 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Jul 26, 2:35 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	115 min
Jul 26, 2:45 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	4 hr
Jul 26, 2:53 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	3 hr
Jul 26, 3:32 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Beaver	3 hr
Jul 26, 5:30 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	6 hr
Jul 26, 6:10 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Jul 26, 6:11 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Jul 26, 6:21 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Jul 26, 6:39 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 26, 7:44 PM MDT	Flash Flood Warning	GJT	Grand	3 hr
Jul 27, 12:35 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Jul 27, 1:23 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Jul 27, 1:51 PM MDT	Flash Flood Warning	GJT	Grand	88 min
Jul 27, 1:55 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Jul 27, 2:46 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	3 hr
Jul 28, 12:19 PM MDT	Flash Flood Warning	SLC	Cache	3 hr
Jul 28, 1:55 PM MDT	Flash Flood Warning	SLC	Morgan	3 hr
Jul 28, 2:17 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery	3 hr
Jul 28, 3:17 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Grand, San Juan	5 hr
Jul 28, 3:47 PM MDT	Flash Flood Warning	SLC	Davis, Morgan	3 hr
Jul 28, 6:32 PM MDT	Flash Flood Warning	GJT	San Juan	75 min
Jul 28, 7:23 PM MDT	Flash Flood Warning	GJT	Grand, San Juan	3 hr
Jul 28, 7:43 PM MDT	Flash Flood Warning	GJT	Grand	3 hr
Jul 29, 6:03 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	117 min
Jul 29, 6:17 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Jul 29, 7:40 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 29, 7:46 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Jul 29, 7:52 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	113 min
Jul 29, 9:01 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 30, 2:17 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 31, 1:23 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Duchesne, Wasatch	3 hr
Jul 31, 3:35 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Jul 31, 4:10 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Utah	3 hr
Jul 31, 4:19 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Duchesne	3 hr
Jul 31, 5:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	3 hr
Jul 31, 5:39 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	5 hr
Jul 31, 6:22 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	4 hr
Aug 1, 12:47 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 1, 1:35 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Aug 1, 1:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Duchesne, Wasatch	3 hr
Aug 1, 3:35 PM MDT	Flash Flood Warning EmergencyConsiderable damage threat	SLC	Iron	3 hr
Aug 1, 6:01 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Garfield, Wayne	3 hr
Aug 1, 7:58 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Davis	3 hr
Aug 1, 8:56 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Grand, San Juan	109 min
Aug 1, 11:10 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Grand, San Juan	3 hr
Aug 2, 1:16 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Carbon	3 hr
Aug 2, 1:27 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery	3 hr
Aug 2, 2:30 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	4 hr
Aug 2, 2:56 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Aug 2, 3:52 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	4 hr
Aug 2, 4:14 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, San Juan	3 hr
Aug 12, 4:25 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Aug 12, 6:26 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Washington	114 min
Aug 14, 1:17 PM MDT	Flash Flood Warning	SLC	Emery	3 hr
Aug 14, 4:47 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Aug 17, 2:50 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 17, 4:18 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	3 hr
Aug 17, 4:53 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 17, 5:10 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	4 hr
Aug 17, 5:37 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane	6 hr
Aug 17, 6:05 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Millard	3 hr
Aug 17, 6:57 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, San Juan	5 hr
Aug 18, 4:38 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	5 hr
Aug 18, 4:41 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Aug 18, 6:02 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	4 hr
Aug 18, 7:30 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	90 min
Aug 18, 8:58 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	92 min
Aug 18, 12:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	6 hr
Aug 18, 1:05 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Aug 18, 1:12 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	2 hr
Aug 18, 1:39 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Aug 18, 2:27 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Utah	3 hr
Aug 18, 2:37 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Utah	113 min
Aug 18, 3:25 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Utah	3 hr
Aug 18, 3:46 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	3 hr
Aug 18, 4:22 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 18, 7:43 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	4 hr
Aug 18, 8:01 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Aug 18, 9:39 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron, Washington	3 hr
Aug 18, 9:53 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Aug 18, 10:07 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Iron	3 hr
Aug 18, 11:11 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	5 hr
Aug 19, 1:43 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Aug 19, 2:03 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Kane, San Juan	6 hr
Aug 19, 2:31 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	3 hr
Aug 19, 12:49 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Aug 21, 9:59 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Salt Lake	91 min
Aug 26, 3:28 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Wayne	3 hr
Aug 26, 4:52 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Aug 26, 5:42 PM MDT	Flash Flood Warning Considerable damage threat	GJT	Grand, San Juan	3 hr
Sep 1, 8:21 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	3 hr
Sep 1, 4:59 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	2 hr
Sep 2, 5:33 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield	3 hr
Sep 11, 12:50 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Sep 11, 1:40 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Carbon	3 hr
Sep 11, 6:19 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery, Garfield, Wayne	3 hr
Sep 11, 8:15 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Garfield, Wayne	3 hr
Sep 18, 2:43 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Emery	3 hr
Sep 28, 3:10 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Wayne	3 hr
Oct 5, 4:01 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane, Washington	4 hr
Oct 5, 4:43 PM MDT	Flash Flood Warning Considerable damage threat	SLC	Kane	4 hr
Oct 6, 8:48 AM MDT	Flash Flood Warning Considerable damage threat	SLC	Carbon	90 min

By county

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

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2020 2022

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.