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Weather / Flood Watch

Severe

Flood Watch issued August 29 at 9:36PM MDT until August 31 at 9:00PM MDT by NWS Salt Lake City UT

Eastern Juab/Millard Counties; Central Mountains; Sanpete Valley; Sevier Valley; Castle Country; San Rafael Swell; Lower Washington County; Zion National Park; Southern Mountains; Upper Sevier River Valleys; Bryce Canyon Country; South Central Utah; Capitol Reef National Park and Vicinity; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell

Urgency: Future
Certainty: Possible
Onset: 8/30/2026, 3:36:00 AM
Expires: 8/30/2026, 6:45:00 PM

Details

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Utah, including the following areas, Castle Country, Central Mountains, Eastern Juab/Millard Counties, San Rafael Swell, Sanpete Valley, Sevier Valley, Bryce Canyon Country, Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Southern Mountains, Upper Sevier River Valleys, Western Canyonlands, Lower Washington County and Zion National Park. * WHEN...Through Monday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying and flood-prone locations such as slickrock areas and recent burn scars including Widemouth 2, Cottonwood, Monroe Canyon, Forsyth, and other recent burn scars. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Deep moisture will continue to support thunderstorms with heavy rainfall across the watch area through Monday evening, particularly during the afternoon and evening. Some areas, particularly across the Sanpete and Sevier Valleys as well as Castle Country, have already seen heavy rainfall and will be even more prone to flooding given saturated soils. - http://www.weather.gov/safety/flood

What To Do

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Affected States

Other Active Flood Watch Alerts

Flood Watch issued August 30 at 11:36AM MDT until September 1 at 12:00AM MDT by NWS Grand Junction CO
Central Yampa River Basin; Roan and Tavaputs Plateaus; Grand Valley; Debeque to Silt Corridor; Central Colorado River Basin; Grand and Battlement Mesas; Gore and Elk Mountains/Central Mountain Valleys; Central Gunnison and Uncompahgre River Basin; West Elk and Sawatch Mountains; Flat Tops; Upper Gunnison River Valley; Uncompahgre Plateau/Dallas Divide; Northwestern San Juan Mountains; Southwest San Juan Mountains; Paradox Valley/Lower Dolores River; Four Corners/Upper Dolores River; Southeast Utah; Tavaputs Plateau; Arches/Grand Flat; La Sal and Abajo Mountains; Canyonlands/Natural Bridges
Flood Watch issued August 30 at 11:36AM MDT until September 1 at 12:00AM MDT by NWS Grand Junction CO
Animas River Basin; San Juan River Basin
Flood Watch issued August 30 at 9:54AM MST until September 1 at 12:00AM MST by NWS Flagstaff AZ
Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Yavapai County Mountains; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little Colorado River Valley in Coconino County; Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Western Mogollon Rim; Eastern Mogollon Rim; White Mountains; Northern Gila County; Yavapai County Valleys and Basins; Oak Creek and Sycamore Canyons; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264
Flood Watch issued August 30 at 6:15AM MST until August 31 at 5:00AM MST by NWS Tucson AZ
Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven; Baboquivari Mountains including Kitt Peak
Flood Watch issued August 30 at 4:23AM MST until September 1 at 12:00AM MST by NWS Flagstaff AZ
Kaibab Plateau; Marble and Glen Canyons; Grand Canyon Country; Coconino Plateau; Northeast Plateaus and Mesas Hwy 264 Northward; Chinle Valley; Chuska Mountains and Defiance Plateau; Little Colorado River Valley in Coconino County; Little Colorado River Valley in Navajo County; Little Colorado River Valley in Apache County; Western Mogollon Rim; Eastern Mogollon Rim; White Mountains; Black Mesa Area; Northeast Plateaus and Mesas South of Hwy 264

Source: National Weather Service.