Preliminary reports believed the ground fog to have been a factor.

The odor of whiskey and sweat sat on him like a ground fog.

The third assault came at 2100 hours, By that time, we were in total darkness with a heavy ground fog developing.

The ground fog began to dissipate with the growing warmth of the spring sun.

The sky was much lighter now, and a soft breeze from the sea started to move the ground fog away.

The morning sun was up now and beginning to bum the ground fog off the park.

The ground fog lifted some, so I walked a few yards into the woodland.

When it did, a heavy ground fog reduced visibility to near zero.

There was also a slight ground fog, giving the woods an eerie feeling.

By then the sun will have driven ground fog out of the valley.