Utah Severe Flood Watch | Effective 08/31/2026 08:59

Headline: 
Flood Watch issued August 31 at 9:59AM MDT until August 31 at 9:00PM MDT by NWS Salt Lake City UT
Event: 
Flood Watch
Urgency: 
Future
Effective: 
August 31, 2026 - 8:59am
Expires: 
August 31, 2026 - 8:00pm
Description: 
* 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...Until 9 PM MDT this 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 the evening, particularly starting this afternoon. 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
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
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
Forcast Office: 
NWS Salt Lake City UT
Sender: 
w-nws.webmaster@noaa.gov