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Air Masses and Fronts. Air Mass – a large body of air with uniform temperature and humidity characteristics. 4 Major types of Air Masses. continental Polar cP Dry and Cold. continental Tropical cT Dry and Hot. maritime Polar mP Wet and Cold. maritime Tropical mT Wet and Warm. cA. c P.
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Air Mass –a large body of air with uniform temperature and humidity characteristics
cA cP cT mT mT mT mP mP
Front – the boundary between two air masses they occur when two air masses collide
Cold Frontsfrom when a cold air mass moves into a warm air mass
When cold air runs into warm air the WARM AIR IS FORCED TO RISE.
When warm air catches cold air the WARM AIR MUST RISE OVER THE COLD AIR
Occluded Front- frontal boundary where a cold front catches up to a warm front