Geog. 111 Notes 8

Geog. 111 Notes 8 - -snow storms: -snow: complex...

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- snow storms: -snow: complex aggregations of ice crystals that develop in cold clouds in connection with the Bergeron process (snow flakes of dendrite shape occur between -12 and -16 degrees C) -mixed precipitation likely in the vicinity of frontal boundaries; snow more likely in the deep, cold air mass well north of the warm front (NC needs specific conditions for snow to occur) -vertical temperature profiles connected with snow: column below freezing (if the column is above freezing the snow will melt and turn to rain or just dry air before it reaches the surface; snow melts into rain, which causes enough cooling to bring the near surface air to freezing) -lake effect snowfall: most precipitation comes from lake water, generally occur during early part of year/ winter; can be very heavy over short periods of time, or moderately heavy over longer periods of time (in one instance, Buffalo, NY, situated on the eastern side of Lake Eerie, had 38 days of snowfall); lake effect snowfall is effective in terms of water conservation and tourism (skiing, for example)
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