...FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH SATURDAY EVENING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of Utah, including the following areas, Castle Country, Central Mountains, San Rafael Swell, Wasatch Plateau/Book Cliffs, 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, Southwest Utah and Zion National Park. * WHEN...From Thursday afternoon through Saturday evening. * IMPACTS...Excessive rainfall may result in flooding of slot canyons, normally dry washes, slickrock areas, recent burn scars, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Backcountry roads such as Cottonwood Road, Skutumpah Road, Hole-in-the-Rock Road, Notom-Bullfrog Road, Burr Trail, House Rock Valley Road, Hells Backbone, and Smokey Mountain may become impassable. * ADDITIONAL DETAILS... - Tropical moisture will stream northward into the region Thursday morning, bringing widespread heavy rain and increasing the threat of flash flooding across much of eastern and southern Utah. An increased risk of flash flooding will continue through at least Saturday evening across the watch area. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Avoid traveling into or through slot canyons, normally dry washes, slick rock areas, and other flood prone locations. Avoid travel on backcountry roads in the watch area. &&