Fog!

Now, this is some thick fog! Cutting driving speed and keeping a safe distance prevented over-driving my visuals. The real problem was people slowing to a crawl or stopping along the roadside because they were too scared to go on.

I vivdly recall very dense fog occurring frequently on the California coast. My dad was stationed at Vandenberg AFB and sometimes we could barely see the white line on the road.

This photo was taken on the way to Texas from St Louis. I almost turned around and went back to get the REAL photo I missed - an arched steel bridge rising out of all this fog.