storms and weather predictions Flashcards
air mass
a huge body of air in the troposphere with similar temperature and humidity thruought
front
a boundaries where 2 air masses bump against each other
orographic lifting
when mountains push clouds up in the air verry high.
frontal wedging
when the colder air forces warm air to rise and forms a cold front and a wedge shape formation. wish we cant see (obviously)
storms
severe disturbances in the atmosphere.
lightening
an electrical discharge either between clouds or between a cloud and the ground.
tornado
a narrow rapidly spinning mass of air extending downward from a cumulonimbus cloud
enhanced fujita-pearson
scale to measure tornados.
Allen D. pearson
established the Fajita scale
hurricanes
largest storms, giant cyclonic windstorms that form over tropical or subtropical oceans.
tropical storm
a cyclonic storm with windspeads that reach 39 mi./hr or more. It is then assighned a name.
saffir Simpson scale
scale to rate hurricanes
storm surge
higher than normal water level ussually associated with hurricanes.