Smoke Call Status:

No calls are planned over the holiday weekend. Next call 1300 Mon 12/1.

Issued:

12:30 PM   Thursday, November 27, 2025

Discussion - Friday & Saturday

Following the passage of a weak trough to the NE tonight, upper level ridging will build in from the west on Fri then flatten to light NW flow aloft Fri night & Sat. Locally breezy SW to W winds will continue along northern ridge and portions of the east tonight then diminish Fri morning with light winds area wide Fri afternoon. Locally breezy N-NW to NE winds will develop Fri night into Sat morning then diminish Sat afternoon. Overall, smoke dispersion conditions will remain limited Fri & Sat with afternoon mixing generally remaining on the low side with strong valley inversions continuing. Areas of moderate afternoon mixing heights in the NE & E Fri afternoon will decreasing in coverage on Sat with localized areas of horizontal smoke transport developing Fri night into Sat morning but decreasing again Sat afternoon.

(mph)

(ft AGL)

Friday Afternoon

Friday Afternoon

Friday Night

Friday Night

Click on images to enlarge

Saturday Afternoon

Saturday Afternoon

Extended Outlook:

Sunday - Tuesday

Following the passage of an inside slider type upper level trough across NE portions of the area Sat night, high amplitude ridging will build along the coast Sun. The ridge will shift inland Mon and gradually weaken Mon night & Tue before another inside slider type upper level trough moves through Tue night & Wed. Breezy N-NW to NE winds will develop Sat night through Sun morning and continue through channeled terrain areas Sun night. Winds will diminish Mon afternoon with a light wind pattern and decreasing smoke dispersion conditions continuing into Tue. The next push of N to NE winds will begin Tue night or Wed (model timing continues to vary) with offshore flow increasing Wed night into Thu morning.

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