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Heavy Rain and Flash Flooding Concerns in California; Heavy Snow in the Sierra

An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. Read More >

A Flash Flood Watch is in effect from noon until 9 PM MDT today for the burn scar areas of the 416 and Burro fires in La Plata County encompassed in the area in green below. The Hermosa drainage is the greatest concern. Locations downhill and downstream from burned areas are very susceptible to flash flooding and debris flows, especially near steep terrain. Want to learn more about flooding and debris flows? Check out this cool webpage our NWS neighbors to the north in Riverton created explaining all about them!