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Smoke Call Status: Weekdays (M-F) @ 1300 hrs PDT
Issued: 12:30 PM   Monday, October 03, 2022
Upper level ridging will persist overhead Tue & Wed with smoke dispersion conditions remaining somewhat limited by the stabilizing influence of the ridge and rather light wind pattern. Aside from localized sea breeze and terrain driven winds, both surface and transport winds will remain minimal Tue & Wed significantly limiting ventilation. Above normal temps will support moderately deep mixing heights over inland areas for a few hours each afternoon with moderate to strong valley inversions forming each night.
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
Little change in the weather pattern is expected through the end of the week with upper level ridging persisting overhead through Fri and the general wind pattern remaining light. Continued above normal temperatures will support fairly good vertical mixing in the afternoons, but overall smoke dispersion conditions will remain limited due to the lack of any organized transport winds to carry smoke away and stronger than normal overnight inversions.
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