Dense Fog Advisory until 12:00PM 
...Areas of Dense Fog in the Central Valley... .Areas of dense fog in the Southern Sacramento Valley and Northern San Joaquin Valley will continue until midday. Use caution while driving.
* WHAT...Visibility below one quarter mile in dense fog.
* WHERE...Southern Sacramento Valley and Northern San Joaquin Valley Counties.
* WHEN...Until noon PST today.
* IMPACTS...Hazardous driving conditions due to low visibility.
* ADDITIONAL DETAILS...Use low beam headlights. If possible, delay driving until early this afternoon.
* AFFECTED AREAS: SOUTHERN SACRAMENTO VALLEY ... NORTHERN SAN JOAQUIN VALLEY
Instructions:
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Address/Location
Fairfield, CA Police Department
1000 Webster St
Fairfield, CA 94533
Contact
Emergency: 9-1-1
Non-emergencies: 707-428-7300