Does steam rise from lakes even though they are not boiling?



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    The “steam fog” seen forming above lakes is not actually the result of liquid water boiling to gas form; but rather is a process of condensation as water vapor in the air directly above lake surfaces is cooled by the low temperature of the lake surface. The effect is usually most pronounced in Autumn months following cold clear nights. Water just below the surface remains warmer so that vapor still forms above the lake; but the chilled surface causes the vapor to condense into a misty layer of “steam fog.”

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