Lower Columbia Basin of Oregon and Foothills of the Northern Blue Mountains of Oregon placed under a dense fog advisory

At 5:30 a.m. on Saturday, the National Weather Service released a dense fog advisory in effect until 10 a.m. for Lower Columbia Basin of Oregon and Foothills of the Northern Blue Mountains of Oregon.

The weather service says to be ready for, "Visibility one quarter mile or less in dense fog."

"Low visibility could make driving conditions hazardous," adds the weather service. "If driving, slow down, use your headlights, and leave plenty of distance ahead of you."

Fog safety: Tips from the weather service for safe travels

If a dense fog advisory is issued for your area, it means that widespread dense fog has developed and visibility often drops to just a quarter-mile or less. These conditions can make driving challenging, so exercise extreme caution on the road, and if possible, consider