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Smoke Call Status:   Mon thru Fri excluding Holidays
Issued: 12:30 PM   Friday, January 23, 2026
Discussion - Saturday & Sunday
Inside Slider Low-Pressure system will finish up Sat and lead to a moderately strong offshore wind event with a turbulently mixed atmosphere, espcially west of the Crest. Ridging will follow on Sun and lead to light and variable transport winds, especially by the afternoon and reduced mixing. Ventilation will be in the moderate to very good category on Sat then become poor to locally moderate on Sun.   
Transport winds
Mixing Heights
(mph) (ft AGL)
Saturday Afternoon Saturday Afternoon
Saturday Night Saturday Night
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Transport winds
Mixing Heights
Sunday Afternoon Sunday Afternoon
 Monday - Wednesday
Both Ridging and Troughing influences are likely during the earlier half of next week and create some changeable ventilation conditions. Modeling has been flipping around on the strength or influence of the midweek system so confidence is less. It appears that ventilation should increase slightly on Mon with a little more of an onshore flow favoring the Coastal areas and northern tier. Lesser ventilation expected on Tue with Ridging then a possible change again on Wed due to some sort of troughing influences but how much is still up in the air. Perhaps some light precipitation for the midweek system but models have been trending drier.  
Helpful Resources:
Air Resources Board
San Joaquin Air Quality
AirNow Fire and Smoke Map
North Zone Predictive Services Weather Page
South Zone Predictive Services Weather Page
NWS California Fire Weather Page
NWS Spot Forecast Request
This Product was developed by the Predictive Services group, located at the North Zone Coordination Center in Redding, California