Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

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24 Hr Hazard Risks

All Marine Tropical

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The Experimental Graphical Hazardous Weather Outlook is an experimental product that will be posted to this page for evaluation. It is a decision support service that supports preparedness and response efforts prior to and during hazardous weather. This service provides decision makers with convenient access to potential weather hazard information by graphically depicting the risk of weather hazards out through seven days.

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If you have questions about this product, please contact:

Audra Bruschi
NWS IDSS Program Coordinator
audra.bruschi@noaa.gov

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

Experimental Graphical Hazardous Weather Outlook

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