Interactive NWS Alert

Radar valid at 1200 pm PST, Jan 20th 2026

CAZ016>019-202000-
/O.NEW.KSTO.FG.Y.0007.260120T0054Z-260120T2000Z/
Central Sacramento Valley-Southern Sacramento Valley-Carquinez
Strait and Delta-Northern San Joaquin Valley-
Including the cities of Chico, Oroville, Modesto, Sacramento,
Fairfield/Suisun, Stockton, and Marysville/Yuba City
454 PM PST Mon Jan 19 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TUESDAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Carquinez Strait and Delta, Central and Southern
Sacramento Valley, and Northern San Joaquin Valley.

* WHEN...Until noon PST Tuesday.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

iNWS is an experimental service intended for NWS core partners, including emergency managers, community leaders and other government agencies only.