Issue date: 2026-09-17T11:48+00:00
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Utah, including the following areas, Castle Country, Central Mountains, San Rafael Swell and Wasatch Plateau/Book Cliffs. * WHEN...Through 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. * ADDITIONAL DETAILS... - Showers and thunderstorms are expected to re-develop this afternoon across the area and continue through the evening hours. Rainfall rates between 0.25 to 1 inch per hour with locally higher rates under the heaviest storms are expected. This will cause flash flooding in areas such as normally dry washes, slot canyon, and slickrock areas. - http://www.weather.gov/safety/flood