The morning we left, the fog kept us on the ground for four hours.
But he seldom saw it these days, for the fog kept it wrapped tightly, a world far removed from his own.
But low clouds, rain or fog will keep you on the ground.
Lingering fog kept Fonck grounded most of the day.
The fog in the room kept her from seeing anything but the blue light that rose like a sword from the Mirror.
The fog will keep us hidden from above.
This lasted for half an hour; however, thick fog and bad bumps kept throwing them off course.
They walked steadily higher, but the invading fog kept pace, became even thicker.
Fay couldn't understand why the fog was keeping itself to such narrow bounds.
The fog condensed on his feathers, and he kept shaking himself so that it didn't soak in.