28.2 Flashcards

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1
Q

jet stream

A

a narrow jet stream of fast-moving, high-altitude air

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2
Q

coriolis effect

A

the apparent deflection of an object due to the hemisphere

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3
Q

air mass

A

a large volume of air with uniform moisture and temperature throughout

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4
Q

weather fronts

A

when air masses interact with zones

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5
Q

how may pressure systems are there

A

there are two

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6
Q

what is the low pressure system also known as

A

Low(L)

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7
Q

which direction does a low pressure system flow

A

counter clock-wise

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8
Q

what are some results of a low pressure system

A

air rises clouds form and create precipitation

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9
Q

what is a high pressure system also known as

A

High(H)

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10
Q

what does a high pressure system cause

A

causes air to sink causing clear skies

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11
Q

what are the four weather fronts

A

cold fronts, warm fronts, stationary front, and occluded fronts

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12
Q

what causes a sold frobt

A

caused by warm air rising upward in a chaotic manner

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13
Q

what is a cold front represented on the news

A

represented by blue triangles

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14
Q

how are warm fronts caused

A

warm air rises gently above cold air

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15
Q

what is the warm front represented by on the news

A

represented by red semi-circles

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16
Q

how are stationary fronts formed

A

cold and warm air masses meeting together and neither advances

17
Q

how are stationary fronts represented on the news

A

triangles and semi-circles alternating on top and bottom

18
Q

how are occluded fronts created

A

fast moving cold front takes up a slow moving warm front

19
Q

how are occluded fronts represented on the news

A

purple semi-circles and triangles on the same line