WX201 CHP-11

Term
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Air masses are usually classified according to their ____ and ____.
​
wind direction; precipitation type

temperature; pressure

temperature; humidity

humidity; wind direction

pressure; humidity
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Terms in this set (15)
Air masses are usually classified according to their ____ and ____.
​
wind direction; precipitation type

temperature; pressure

temperature; humidity

humidity; wind direction

pressure; humidity
temperature; humidity
Occluded fronts may form when:

a warm front overtakes a cold front

a cold front and warm front collide

overrunning occurs along a warm front

a cold front overtakes a squall line

a cold front overtakes a warm front
a cold front overtakes a warm front
Clear sunny days with very cold nights would be associated with what type of air mass?

cT

mT

cP

mP

mA
cP
What type of weather front would likely be responsible for the following weather forecast? "Increasing cloudiness and warm today with the possibility of showers by this evening. Turning much colder tonight. Winds southwesterly becoming gusty and shifting to northwesterly by tonight."

cold front

dryline

stationary front

warm front

warm-type occluded front
cold front
The greatest contrast in both temperature and moisture will occur along the boundary separating which air masses?

cT and mT

cP and cT

mP and mT

mT and cP

mP and cT
mT and cP
The designation for a cool, moist air mass is

cP

cT

mP

mT

cA
mP
One would expect a cP air mass to be:

temperature and dry

warm and dry

cold and dry

warm and moist

cold and moist
cold and dry
The origin of cP and cA air masses that enter the United States is

Northern Siberia

Northern Canada and Alaska

Antarctica

the Northern Atlantic Ocean

the Easter Pacific Ocean
Northern Canada and Alaska
Which air mass would show the most dramatic change in both temperature and moisture content as it moves over a large body of very warm water?

mP in winter

mA in winter

cP in winter

cT in summer

mT in summer
cP in winter
Alternating lines of blue and red on a surface weather chart indicate a(n)

occluded front

cold front

stationary front

warm front

dryline
stationary front
Compared to an mP air mass, mT air is colder and moister warmer and drier warmer and moister colder and calmer warmer and windierwarmer and moisterIn winter, which sequence of clouds would you most likely expect to observe as a warm front with precipitation approaches your location?cirrus, cirrostratus, altostratus, and nimbostratusA good source region for an air mass would be:generally flat areas of uniform composition with light surface windsRecord breaking low temperatures are associated with which air mass? mT cP mA mP cTcPWhat type of air mass would be responsible for refreshing cool, dry breezes after a long summer hot spell in the Central Plains? cT cP mT mA mPcP