Dense fog advisory in effect until 10 am this morning

The National Weather Service in San Diego has issued a dense fog advisory, which is in effect until 10 am this morning.

Location: Inland Empire and valleys in the northern San Deigo area of Fallbrook.

* Timing: through 10 am.

* Visibility: quarter of a mile or less.

* Impacts: sudden reductions of visibility will cause dangerous driving conditions making the morning commute especially treacherous.

Precautionary/preparedness actions

A dense fog advisory means visibilities will frequently be reduced to less than one quarter mile. If driving--slow down--Use your headlights--and leave plenty of di...