SmokeTemplate_9325_image002.png,pc_logo_rgb
Smoke Call Status:  Daily at 1300 PDT
Issued: 12:30 PM   Thursday, October 08, 2026
Discussion - Friday & Saturday
Upper level troughing approaching the area from the north Fri and deepening over North Ops Sat will bring more active smoke dispersion conditions to the area. Continuing thermal belt impacts tonight combined with fairly light general winds will support the formation of moderate to strong valley inversions that will persist into Fri morning. Gusty SW to NW surface and transport winds will become increasingly widespread Fri afternoon and when combined with good to excellent mixing heights across most inland areas will rapidly improve smoke dispersion conditions. Gusty NE winds will develop across far NW ridges Fri night while SW winds continue across Nrn Sierra ridges. N-NW winds will strengthen and become more widespread across W & NW portions of the area through the day Sat while SW winds strengthen across and to the east of the Nrn Sierra. 
Transport winds
Mixing Heights
(mph) (ft AGL)
Friday Afternoon Friday Afternoon
Friday Night Friday Night
Click on images to enlarge
Transport winds
Mixing Heights
Saturday Afternoon Saturday Afternoon
Extended Outlook:  Sunday - Tuesday
The upper level trough will close off into a unseasonably deep upper level low on Sun which will slowly track to the SE then E Mon & Tue as upper level ridging builds along the coast. Precipitation will spread into the Nrn Sierra Mtns Sun then taper off Mon. Smoke dispersion conditions will remain active for most inland areas on Sun then gradually diminish Mon & Tue as the unstable influence of the low/trough decreases and is replaced by the stabilizing influence of the coastal ridge. Breezy to locally windy N-NW to NE winds will expand in coverage Sat night and continue Sun and to a more localized extent Sun night before winds become lighter Mon & Tue. 
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