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7th Grade Weather Vocabulary

Vocabulary WordDefinition
Air mass a large body of air that has properties similar to the part of Earth's surface over which it develops
Front a boundary between two air masses of different density, moisture, or temperature
Tornado a violently rotating column of air in contact with the ground
Hurricane a large, swirling, low-pressure system that forms over oceans
Blizzard a winter storm that's winds are 56km/h, temperature is low, visibility is less than 400 m in falling or blowing snow, and if these conditions last 3 hours or more
Meteorologist a person who studies the weather
Station Model shows the weather conditions at a specific location on Earth's surface
Isotherm a line that connects points of equal temperature (iso=same, therm= temperature
Isobar a line drawn to connect points of equal atmospheric pressure
Cold Front occurs when colder air advances toward warm air
Warm Front forms when lighter,warmer air advances over heavier, colder air
Occluded Front involves three air masses of different temperatures—colder air, cool air, and warm air
Stationary Front occurs when a boundary between air masses stop advancing, may remain in the same place for several days
Created by: ldoris