Smoke Call Status:

Weekdays (M-F) @ 1300 hrs PDT (except holidays)

Issued:

12:30 PM   Friday, April 19, 2024

Discussion - Saturday & Sunday

Mainly ridge impacts for the N State during the weekend with warm interior temperatures and relatively dry daytime RH values.  Coastal areas will see near normal temperatures and perhaps a little more marine layer influences as increased onshore flow occurs.  Winds will be generally out of the west both days with some enhanced surface breeziness around the Bay Area and Delta...while transport winds will be favorable across most areas out of the SW.  The southern Sac Valley will see a very light southerly flow Sat but will turn back to northerly on Sun.  Areas of higher AQI's will be the southern Sac Valley and E Bay due to the lighter wind fields.

(mph)

(ft AGL)

Saturday Afternoon

Saturday Afternoon

Saturday Night

Saturday Night

Click on images to enlarge

Sunday Afternoon

Sunday Afternoon

Monday - Wednesday

Monday may be the warmest day of the week across the interior valleys as high pressure aloft finally begins to give way to more troughiness from the Pacific.  By Tues onshore flow kicks in with mainly W-SW flow as a trough reaches the N. Coast. This feature will bring a little instability back to the region for some light shower potential during the afternoon hours along the mtns but elsewhere little to no precipitation is expected through Wed.  Air quality should improve across areas that saw diminished measurements during the previous few days.

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