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Smoke Call Status: Daily @ 1300 hrs. PDT
Issued: 12:30 PM   Monday, October 21, 2019
Ridging will continue for the most part Tue and Wed. A disturbance will pass to the north and east and allow an initial cold frontal passage on Wed. Ventilation overall will be lowering during this period because of the lower mixing heights. Transport wind flow will turn more NW-N-NE and will be locally stronger in areas, especially Wed. 
Transport winds
Mixing Heights
(mph) (ft AGL)
Tuesday Afternoon Tuesday Afternoon
Tuesday Night Tuesday Night
Click on images to enlarge
Transport winds
Mixing Heights
Wednesday Afternoon Wednesday Afternoon
Extended Outlook: Thursday - Saturday
High pressure ridge will strengthen over the area late week leading to lower ventilation which includes mixing heights and transport winds. Localized gustier N-NE transport winds will affect the region but smaller coverage area. Strongest transport wind flow will likely occur on Thu during this period. 
Helpful Resources On-Line:
Air Resources Board
San Joaquin Air Quality
North Zone Predictive Services
South Zone Predictive Services
SPOT Forecast Request North
SPOT Forecast Request South
This Product was developed by the Predictive Services group, located at the North Zone Coordination Center in Redding, California