Early morning fog is really a cloud that condenses at ground level.
![Early morning fog hugs the ground.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/wss-cycle-condensation-fog.jpg?itok=ndDqa1Gm)
Detailed Description
On California's Marin Headlands, facing away from the Golden Gate Bridge, the August heat hits the cool air from the Ocean, creating a very thick fog that tends to sit low on the ground. The temperature difference also creates wind, pushing the fog like a ribbon in a fan.
Sources/Usage
Credit: Dan Heller