* 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