Frost Advisory issued January 25 at 2:29AM PST until January 25 at 9:00AM PST by NWS San Francisco CA

* WHAT…For the Dense Fog Advisory, visibility 3 to 4 miles in
dense fog. For the Frost Advisory, temperatures as low as 30 will
result in frost formation. For the Freeze Watch, sub-freezing
temperatures as low as 29 possible.

* WHERE…North Bay Interior Valleys.

* WHEN…For the Dense Fog Advisory and Frost Advisory, until 9 AM
PST this morning. For the Freeze Watch, from late tonight through
Tuesday morning.

* IMPACTS…Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Cold conditions will be hazardous to sensitive
populations such as unhoused individuals. Cold Conditions can lead
to hypothermia with prolonged exposure. Low visibility could make
driving conditions hazardous.

* ADDITIONAL DETAILS…Dense fog is mainly being reported in the
Sonoma County valleys and eastern Marin County.