Severe · Flood WatchActive alert
Flood Watch issued August 31 at 11:22AM MDT until September 1 at
Affecting Animas River Basin; San Juan River Basin
In effect until: Sep 1, 2026, 6:00 AM
Animas River Basin; San Juan River Basin
Possible impact zone; conditions develop through 6:00 AM.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Read the original bulletin (official text)
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Colorado, including the following areas, Central Colorado River Basin, Central Gunnison and Uncompahgre River Basin, Central Yampa River Basin, Debeque to Silt Corridor, Flat Tops, Four Corners/Upper Dolores River, Gore and Elk Mountains/Central Mountain Valleys, Grand Valley, Grand and Battlement Mesas, Northwest San Juan Mountains, Paradox Valley/Lower Dolores River, Roan and Tavaputs Plateaus, Southwest San Juan Mountains, Uncompahgre Plateau and Dallas Divide, Upper Gunnison River Valley and West Elk and Sawatch Mountains and Utah, including the following areas, Arches/Grand Flat, Canyonlands/Natural Bridges, La Sal and Abajo Mountains, Southeast Utah and Tavaputs Plateau. * WHEN...Through this evening. * IMPACTS...Excessive runoff may result in flooding of creeks, streams, slot canyons, slick rock areas, recent burn scars, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Monsoonal moisture will remain across the area through this evening and will support thunderstorms and showers with heavy rainfall across the watch area. Several rounds of heavier rain are expected increasing the chance for flash flooding especially in our more susceptible areas. - http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™