Smoke Call Status:   M-F (excluding holidays)  @ 1300 hrs PST
Issued: 12:30 PM   Friday, February 23, 2024
Discussion - Saturday & Sunday
Fair to pleasant weather and a break from storm systems will continue Saturday and at least the first half of Sunday as weak high pressure aloft exists.  The ridge will weaken and allow a couple of weak storm systems to move across the north half of the state on Monday.  Expect mainly sunny skies and temperatures about 5 to 10 degrees above normal Sat and Sun along with very light surface and transport winds.  This will allow pockets of poor air quality to develop across the southern Sac Valley and E Bay areas each day. 
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:  Monday - Wednesday
Two weather systems will begin to approach the North State Sun night.  One coming from the SW and another from the NNW.  Recent model runs have reduced the amount of precipitation with these storms thus at this time only periods of light rain and snow to elevations around 3000 feet is expected. However temperatures will be quite cool during this 3 day period running about 10-15 degrees below normal with snow levels falling to near 2000 ft and locally lower.  A break in the precipiation occurs on Tue and Wed but the cool temperatures persist.  Air quality should remain fair to good across most areas as instability and breeziness continues. 
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