steam fog

American  

noun

Meteorology.

1. fog caused by cold air flowing over a body of comparatively warm water, the vapor condensing in small convective columns near the water surface and giving the appearance of smoke or steam.

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Example Sentences

Scenes from Lake Washington today with steam fog in the morning and a nice moonrise over Bellevue and the lake tonight.

From Seattle Times

Aerial views of the Windy City reveal a large portion of the river is covered in chunks of ice and giving off swirling sea smoke, also known as "steam fog" when it occurs over freshwater lakes or rivers.

From Fox News

A similar event was canceled at the Chicago lakefront, where the temperature dipped below zero as thick, white steam fog rose from the lake Monday morning.

From Washington Post

The original smokestack, present from 1907 until 1949, served as the exhaust for coal-fired boilers that powered a steam fog signal.

From Washington Times

With the lighthouse and the steam fog signal house built on top of a cement pier supported by wooden pilings, the effects of water, wind and Michigan winters eventually took their toll.

From Washington Times