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Smoke Call Status: Daily @ 1300 hrs. PST, except weekends and holidays
Issued: 12:30 PM   Friday, February 23, 2018
Discussion:
Acctive smoke dispersion conditions will continue for the next week as a series of cold weather systems pass from north to south over northern CA. Ahead of each system general winds will increase out of the S-W, then turn to NW-NE once the system passes. Deep vertical mixing will also be common due to somewhat unstable conditions brought on by the systems. The next one to move through will be on Saturday, followed by another Sunday night and Monday. A third is due Tuesday and Tuesday night, followed by another Thursday into next weekend.
Transport winds
Mixing Heights
(mph) (ft AGL)
Saturday Afternoon Saturday Afternoon
Saturday Night Saturday Night
Click on images to enlarge
Transport winds
Mixing Heights
Sunday Afternoon Sunday Afternoon
Extended Outlook: Monday through Wednesday
Active smoke dispersion will continue throughout the outloook period as disturbances move through the region.
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