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Air Masses

Air Masses, Tornados, and Hurricanes

QuestionAnswer
cold, dry air mass coming from Canada continental polar
bitterly cold, dry air mass coming from Alaska Arctic
warm, dry air mass coming from Mexico continental tropical
warm, moist air mass coming from the Gulf of Mexico maritime tropical
warm, moist air mass coming from the southern region maritime tropical
cold, moist air mass coming from the northern region maritime polar
a large body of air that has properties similar to the part of the Earth's surface over which it develops air mass
Where do moist air masses come from? over water
Where do dry air masses come from? over land
What type of weather comes from high pressure areas? fair weather because the sinking motion of the air makes it difficult for air to rise and clouds to form
What type of weather comes from low pressure? cloudy and stormy with strong winds
a boundary between two air masses of different density, moisture, and temperature front
type of weather from a cold front thunderstorms
type of weather from a warm front long periods of gentle rain
front that forms when a warm air mass and a cold air mass meet and neither can move the other stationary front
Cold air rapidly moves into a land area of warm air. What type of weather would most likely occur? thunderstorm
front that causes thunderstorms cold
front that is not moving and causes several days of rain stationary
What does a hurricane gain strength from? the heat and moisture of the warm ocean water
type of pressure system needed for a hurricane or tornado low pressure
type of water needed for a hurricane to form warm (80 degrees or warmer)
warning time for a tornado vs. a hurricane You can know about a hurricane days to weeks in advance, but you only know about a tornado minutes to hours in advance
a tropical cyclone with high winds, rain, thunder, and lightning hurricane
a rotating funnel-shaped column of air that has a very high speed of winds tornado
What does a hurricane need to form? low pressure, warm water, forms near equator, rotation of winds caused by Coriolis effect, wind going in the same direction as the storm
Where do most hurricanes start? Why? near the equator because of the warm water and stronger Coriolis forces
three characteristics of an air mass that you need to know in order to classify it temperature, pressure, and moisture
type of weather system that brings calm, clear weather high pressure
symbol for low pressure capital letter L that is red
symbol for high pressure capital letter H that is blue
Created by: Nisey1996
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