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| layer of the atmosphere in which commercial airliners take advantage of fast moving upper atmosphere air to save fuel as they fly west to east |
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| a low lying layered cloud along a warm front, which produces steady precipitation for an extended period |
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| type of fog that frequently forms over cold surfaces such as oceans, as warm moist air moving across the water is rapidly cooled causing water vapour to condense |
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| name given to the leading edge of an advancing air mass |
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| winds from the Pacific in mid-latitudes |
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| compass direction in which a slope faces |
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| a front in which the weather system dies out as a result of a fast moving cold front that overtakes a slower moving warm front mixing the cold and warm air |
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| Incoming solar radiation from the sun |
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| the wet side of a mountain range |
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| turbulent layer of the atmosphere which contains wind, rain, and clouds |
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| a puffy, white, fair weather cloud |
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Definition
| lines that join areas of equal air pressure |
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| the most violent of all storms with wind speeds reaching 500 kilometers per hour |
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| the percentage of water vapour in the air |
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| a gas which makes up 21% of the atmosphere |
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| process by which water vapour enters the atmosphere |
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| the air mass which is responsible for bringing, cool, moist, and unstable conditions to British Columbia much of the year |
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| a gas which makes up 78% of our atmosphere |
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| fog that often forms in low lying valleys on cloudless and windless nights in fall and spring |
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| a high cloud that consists of ice crystals, signals an approaching warm front and will not produce precipitation |
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| a vertical cloud associated with thunder, lightning, hail and heavy rain |
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| term given to the percentage of solar radiation reflected back into space |
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| an cold, stable, dry air mass which originates in high latitudes and flows south through the interior of North America |
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| layer in the atmosphere which protects humans and other life forms on earth from harmful ultraviolet radiation |
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| the burning of fossil fuels has increased the levels of this gas in the atmosphere to the highest level in over 400,000 years |
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| Warm wind moving down the leeward side of the Rockies which affects the city of Calgary |
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Definition
| warm ocean current which begins in the Gulf of Mexico and the Caribbean and moves north along the eastern coast of North America |
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