NBC Action Weather Blog : I don't know…It's all foggy to me …

Air is “humid” when the temperature is close to the dew point. When the air is 40° and the dew point is 40°…the air is “full” of all the water vapor it can hold (thanks Clausius). At that point, water vapor can condense on the grass …. This time the southern jet is stronger, and that would me much more conducive to a winter storm . I hope it stay all snow, and not freezing rain, a glaze is pretty but I do not want to relive 2002, and the timing of the storms are also …

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NBC Action Weather Blog : I don't know…It's all foggy to me …