Smoke Call Status:

Daily @ 1300 hrs. PDT

Issued:

12:30 PM Tuesday, October 16, 2018

Discussion:

Afternoon transport winds will be much lighter over the next few days as high pressure becomes centered over the region. Afternoon transport wind directions will be quite variable across the region with everything from some onshore westerly winds from the coast to the crest of the Coast Range, to rather light northerly in the Sacramento Valley and easterly winds east of the Cascade/Sierra crest. With the lighter winds and still rather modest afternoon mixing heights, there will be somewhat reduced dispersion activity compared to recent days. New fire starts will burn actively, but will need some wind or slope for rapid spread rates and large smoke production.

(mph)

(ft AGL)

Wednesday Afternoon

Wednesday Night

Click on images to enlarge

Thursday Afternoon

Extended Outlook:

Friday - Sunday

Dispersion conditions will remain somewhat less active as high pressure dominates the weather pattern. There is some chance that gusty easterly transport winds will develop again this weekend, in which case, dispersion would be more active. Fires that do occur are likely to burn well as conditions will remain very dry. Existing wild fires may continue to show active afternoon burning, especially when it's windy.

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