Stunning footage of thick sea smoke rolling above Lake Superior on December 31.

"The sea smoke is blown across the lake's surface by the wind, and forms cumulus clouds that will drop lake effect snow on the opposite shore," the filmer wrote online.

During the cold snap in the northern U.S., thick sea smoke rises as Lake Superior cools and forms ice. The sea smoke is blown across the lake's surface by the wind, and forms cumulus clouds that will drop lake effect snow on the opposite shore. The air temperature was brutally cold at -25°F (-32°C) with a windchill around -50°F (-46°C). As daybreak approaches, the Aerial Lift Bridges raises to allow a 770 foot long vessel, St. Clair, to arrive in the Duluth Harbor. This timelapse video was created from 1153 still photographs.