National Weather Service United States Department of Commerce

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 >

Fire Weather Forecasts for Guam are prepared by the NWS Guam Forecast Office
 

No Active Red Flag Warning or Fire Weather Watch

 

A Guide to Understanding Guam's Fire Danger Brochure (PDF)

 

Text Products issued Daily

Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)   Issued: 12/24/2025 09:08:00 AM UTC   (Product Description)

 

Experimental Fire Weather Graphical Forecasts

Now available for expected wind direction and speed, temperature, dewpoint, weather, and probability of precipitation.

 

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