ESC205: Principles of Meteorology Spring 2021 Boundary between the air masses West East cold air (-35°F) warm air (~42°F) Advancing direction of this air mass A 40km -> Type of front approaching Air temperature Likely humidity compared to approaching air mass (higher/lower) Cloudiness (high/low/clear) Precipitation (none, heavy, mild) Wind (calm, mild, strong, other ( if other, describe)) Wind direction ~2km

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