Weather Alerts For Diablo Grande, CA

URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 1009 AM PST Mon Dec 29 2025 Southern Sacramento Valley-Carquinez Strait and Delta-Northern San Joaquin Valley- Including the cities of Fairfield/Suisun, Stockton, Sacramento, and Modesto 1009 AM PST Mon Dec 29 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Carquinez Strait and Delta, Northern San Joaquin Valley, and Southern Sacramento Valley. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Dense fog continues to be observed this morning in the central/southern Sacramento Valley and northern San Joaquin Valley. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&