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Ch 20 science vocab terms

Terms in this set (24)

air mass
a body of air similar to where it was formed
maritime
term meaning "sea"
mP (maritime polar)
cold wet air mass
front
where two air masses meet
warm front
warm air replacing what was cooler air
cold front
when cold air invades a warmer region of air
stationary front
a frontal system that is not moving
occluded front
a cold front overtakes a warm front
cumulonimbus
the source of thunderstorms
fujita
scale to describe tornadoes F1-F5
Storm surge
dome of water carried by a hurricane's eye
Saffir Simpson
scale to describe hurricanes
seabreeze
an afternoon breeze from the sea, due to land heating
valley breeze
daytime rising of warm air from a valley
mountain breeze
night time sinking of cool air from a mountain
mT (maritime tropical)
warm, wet air
cP (continental polar)
cold, dry air
cT (continental tropical)
warm, dry air
lake effect
results in snowstorms in the northeast
ten million
daily number of lightening bolts worldwide
unstable air
air that is moving vertically
weather warning
severe weather conditions exist; take action!
weather watch
the possibility of severe weather exists; be on guard
fifty thousand Fahrenheit
temperature that lightening may reach
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