Fogfall

It becomes surface water runoff through atmospheric scouring associated with rainfall and fogfall.

Source: wiktionary

The fogfall that lay along the crest in a cottony roll was as white as the clouds of a fairytale. Only the heads of the men in the skip were visible from where she stood just outside the door of the shaft house.

Source: wiktionary

He could see it gilding the ridges westward and slowly burning the fogfall that lay over Topanga Park.

Source: wiktionary

Roaring in from the south and the ocean, we saw a rolling white bank of clouds falling onto the bay and the town, a thick dense curse of a fog crawling downward, a fogfall,

Source: wiktionary