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Smoke Call Status:   Mon thru Fri excluding Holidays
Issued: 12:30 PM   Friday, March 27, 2026
Discussion - Saturday & Sunday
Ridging on Sat will weaken some on Sun and leading increasing transport winds and mixing heights. Transport wind directions will be NW-W-SW across most of the area during this period. The steadiest winds will be found across the north and east. Ventilation will be variable with lesser vent rates across the Sac Valley while good to excellent will be found across the Modoc Plateau and along/E of the Crest. 
Transport winds
Mixing Heights
(mph) (ft AGL)
Saturday Afternoon Saturday Afternoon
Saturday Night Saturday Night
Click on images to enlarge
Transport winds
Mixing Heights
Sunday Afternoon Sunday Afternoon
 Monday - Wednesday
Troughing should become more influentional during this period. Transport wind directions should generally be W-SW-S and the strongest speeds should occur on Wed. Mon is an interesting day with the possibility of more changeable directions and speeds across the area. Mixing should be more than adequate most areas during the afternoon thus lessening the chance for stagnation. Precipitation chances begin Mon and Tue but are more likely on Wed and could be widespread. 
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