The National Weather Service in Salt Lake City issued a flash flood watch for multiple Utah regions, including Zion National Park and the Sanpete Valley. The watch was issued in a notice stating that flash flooding caused by excessive rainfall remains possible.
The watch covers several areas including the Central Mountains, Eastern Juab and Millard Counties, Sevier Valley, Wasatch Plateau/Book Cliffs, Western Uinta Basin, Bryce Canyon Country, South Central Utah, Southern Mountains, and Southwest Utah. The watch also includes the Upper Sevier River Valleys.
Specific locations mentioned include Beaver, Cove Fort, Scipio, Richfield, Alton, Kanab, Manti, Fish Lake, Nephi, Roosevelt, Indian Canyon, Bryce Canyon City, Castle Dale, Brian Head, Escalante, Duchesne, Milford, Salina, Circleville, Koosharem, Panguitch, Fillmore, Mt Pleasant, Ephraim, Cedar City, Springdale, Joes Valley, Emery, Price, and Scofield.
Excessive runoff from rainfall may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying or flood-prone locations. This includes slickrock areas and recent burn scars such as Cottonwood, Widemouth 2, Forsyth, France Canyon, Monroe Canyon, and Black Canyon.
The National Weather Service stated that excessive rainfall is expected Sunday afternoon due to the arrival of deep tropical moisture across much of central and southern Utah. Rainfall rates of 0.4 to 0.6 inches per hour are expected, with isolated rates between 0.6 and 1.0 inches per hour being possible. Officials advised people to monitor forecasts and be prepared to take action if flash flood warnings are issued.