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17 Cards in this Set
- Front
- Back
what is considered a constant surface for weather purposes ?
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an area uniform in moisture and temperature
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a continental polar air mass would most likely be associated with?
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wisconsin
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for the purpose of identifying clouds, the atmosphere is...
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divided into high, middle, low sections
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what is the area between two different air masses called ?
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a front
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weather frots are generally classified according to?
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relative motions of the air masses involved
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what type of front is formed when warm air moves p over a wedge of colder retearing air ?
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warm front
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the advancing or leading edge of a cold air mass is called a ?
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cold front
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concerning weather effects on radar, the combination of scattering and absorption is known as ?
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attenuation
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th area of the atmosphere where weather ocurs is known as the ?
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troposhere
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what type of refraction causes energy waves to be curved upward ?
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subrefraction
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how is radar performance affected during superrefraction, if at all ?
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radar energy is bent downward, increasing the range
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which form of refraction may result in radar holes or blind spots ?
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trapping
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when is a SPECI (special weather report issued) ?
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when significant weather change occurs
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in an aviation routine weaather report (METAR), what does "M" under runway visual range (RVR) indicate ?
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less than
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what element in the aviation routine weather report (METAR) gives information about clouds and obscuring phenomena?
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sky condition
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in an aviation routine weather report (METAR), how is hail indicated ?
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GR
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winds aloft are reported in?
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5,000ft increments from 5,000ft to 60,000 ft
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