National Weather Service United States Department of Commerce

Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Welcome to the National Weather Service San Francisco Bay Area Decision Support Services Page!

 
This page is maintained by the National Weather Service San Francisco Bay Area/Monterey Bay Region.
Forecasts on this page are generally updated twice per day by 5:00 AM and 5:00 PM.

 

This page was developed as a decision tool for our partners to make more informed decisions due to potential weather impacts. This page is not an official forecast product and graphics may not always be update. 
 
Probabilistic Precipitation Graphics

 

 
Hover over links below to view larger image.
MaxT Day 1 Day2 Day3 Day4 Day5
Probability MaxT > 90 Day 1 Day2 Day3 Day4 Day5
Probability MaxT > 100 Day 1 Day2 Day3 Day4 Day5
Probability Graphic

 

 
Hover over links below to view larger image.
MinT Day 1 Day2 Day3 Day4 Day5
Probability MinT < 32 Day 1 Day2 Day3 Day4 Day5
Probability MinT < 28 Day 1 Day2 Day3 Day4 Day5
Probability Graphic

 

Hover over links below to view larger image.
Max Gust Day 1 Day2 Day3 Day4 Day5
Probability Max Wind Gust 25 mph or More Day 1 Day2 Day3 Day4 Day5
Probability Max Wind Gust 40 mph or More Day 1 Day2 Day3 Day4 Day5
Probability Graphic