Skiers in Switzerland experienced an unusual weather phenomenon when a wave of fog rolled over the mountains and towards them.
Yann Engel and his friends were cross country skiing in the Jura Mountain Range on December 15 on a beautiful day.
But the weather took a dramatic turn. Behind their backs a large wave of fog rolled over the mountain range. The billowing clouds envelope the trees and descends down the hill and towards the skiers.
Sunny blue skies can be seen when the camera pans over to the right, so the skiers don’t have anything to worry about on their downhill trek home.