On Thursday, the National Weather Service issued a dense fog advisory in effect until Friday at 10 a.m. for Central Douglas County, Eastern Curry County, Josephine County, and Jackson County.
The advisory warns of visibility reduced to a quarter mile or less in dense fog, which can make driving hazardous.
"Low visibility could make driving conditions hazardous," the National Weather Service commented. "If driving, slow down, use your headlights, and leave plenty of distance ahead of you."
A dense fog advisory signals the development of widespread fog reducing visibility to a quarter-mile or less, creating challenging driving conditions. If possible, delay travel until conditions improve.
Author's summary: Dense fog in Southern Oregon significantly reduces visibility, posing hazards for drivers who should follow careful safety measures or postpone travel if possible.