NCFE Review: Predicting Weather
Terms in this set (13)
A huge body of air that has similar temperature, humidity, and air pressure throughout
Cold and dry, describing a cold, dry air mass that forms over land in polar regions.
Hot and dry, describing a warm, dry air mass that forms over land in tropical regions
Cold and humid, Describing a cold, moist air mass that is formed over the ocean in polar areas.
Warm and humid, describing a warm, moist air mass that is formed over the ocean in tropical areas
a mass of warm air overtakes a cold air mass and moves over it forming rain and showers, hot and humid weather; symbol is red half circles on a line
when a cold air mass overtakes a warm air mass, precipitation along the front and is very heavy lasts short time, possibility of thunderstorms, gets cold and skies clear fast; symbol is blue triangles on a line
when the boundary between a warm and cool air mass shows little or not movement; symbol is red half circles and blue triangles on opposite sides of a line
Faster moving cold air overtakes a slower moving warm front, 3 air masses meet and warmer air gets trapped; symbol is red half circles and blue triangles on the same side of a line
an instrument measuring atmospheric pressure, can be aneroid-type or mercury-type
the temperature below which condensation occurs and water droplets form
the amount of moisture the air is holding compared to the amount of moisture it could hold at a given temperature; expressed in percent
a narrow, variable band of very strong, predominantly westerly air currents encircling the globe several miles above the earth. There are typically two or three jet streams in each of the northern and southern hemispheres.
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