On Friday, the National Weather Service (NWS) San Francisco, CA, issued a dense fog advisory for the North Bay Interior Valleys. This advisory remains in effect until 10 a.m.
The NWS warns that visibility will be reduced to one quarter of a mile or less in the dense fog.
"Visibility one quarter mile or less in dense fog."
The dense fog could create hazardous driving conditions. The NWS advises the following precautions:
"Low visibility could make driving conditions hazardous."
A dense fog advisory is issued when widespread dense fog develops, commonly reducing visibility to one-quarter of a mile or less. Such conditions can make travel challenging, so drivers should exercise caution or avoid driving if possible.
Source: The National Weather Service
Dense fog significantly reduces visibility in North Bay Interior Valleys until Friday morning, urging motorists to drive cautiously or avoid travel when possible.