Global Winds
Air Masses
Weather
Vocabulary
Severe Weather
Fronts
100
Winds that blow steadily from specific directions over long distances.
What are global winds?
100
Air that has the same temperature, air pressure and humidity throughout.
What is an air mass?
100
The state of the air at a certain time and place
What is weather?
100
Most common type of storm usually accompanied by heavy rains, high winds, and lightning.
What is a thunderstorm?
100
Boundary where 2 air masses meet.
What is a front?
200
The winds that play an important part in the U.S.
What are prevailing westerlies?
200
An air mass that originates over North and Central Canada.
What is a cP air mass?
200
Scientists who study weather
Who are meteorologists?
200
A funnel cloud that forms at the base of a cumulonimbus cloud that touches the ground.
What is a tornado?
200
Red with semicircles on one side. Normally seen when warm air moves into an area formerly covered by cooler air.
What is a warm front?
300
Polar easterlies start in the __________ and move __________.
What is start east and move west?
300
An air mass that has low humidity and high air temperatures. Creates hot, drought like conditions.
What is a cT air mass?
300
Instrument that shows wind direction
What is a wind vane?
300
The name for an extremely large, tropical, rotating weather system that has winds of at least 119 km/h.
What is a hurricane?
300
Seen with blue triangles on one side. When cold air mass moves into an area occupied by warmer air.
What is a cold front?
400
The name given to the periodic warming of the ocean that occurs in the central and eastern Pacific.
What is El Nino?
400
An air mass that forms over the Guld of Mexico and creates wet and warm weather. A source of precipitation in the U.S.
What is a mT air mass?
400
Measures wind speed
What is an anemometer?
400
A dome of water that sweep across the coast causes by the hurricane’s winds
What is a storm surge?
400
Symbol is red semicircles on one side with blue triangles on the other. A front that does not move.
What is a stationary front?
500
Two belts of winds that blow almost constantly from east to west
What are trade winds?
500
The 4 air masses associated with weather in the U.S.
What are cP, cT, mP, and mT air masses?
500
The weather of a place over a long time
What is climate?
500
from June to November 30 of each year.
What is hurricane season?
500
Symbol of Purple semicircles and triangles on the same side. When an active cold front overtakes a warm front.
What is an occluded front?