Question 1

Describe the sequence of events that occur when a fully developed midlatitude cyclone passes just to your north,including cloud sequences,frontal passages,and barometric conditions.

Accepted Answer

The barometer begins to fall as high cir...

Question 2

A continental Polar (cP) air mass that originates in Siberia and is subsequently altered to ________ when crossing the north Pacific

Accepted Answer

A)  cP
B)  mP
C)  cT
D)  mTE) B) and D)
F) None of the above

Question 3

When a TV weather forecaster gives a forecast for "widely scattered afternoon thunderstorms," these storms are probably associated with ________.

Accepted Answer

A)  an unstable air mass,probably maritime tropical air with thunderstorms driven by thermals in an unstable air mass
B)  a cold front generating thunderstorms along it
C)  a warm front generating thunderstorms along it
D)  the core of a midlatitude cycloneE) All of the above
F) None of the above

Question 4

Surface cyclones are accompanied by divergence aloft.

Accepted Answer

A) True 
 B)False

Question 5

Continental tropical air masses are most prominent in what part of North America?

Accepted Answer

A)  the Southwestern United States and northern Mexico
B)  the Pacific Northwest
C)  the Midwestern United States and Canada
D)  the Southeastern United StatesE) All of the above
F) B) and C)

Question 6

A wind shift from south or southwest to northwest is commonly associated with the passage of a ________ front.

Accepted Answer

A)  warm
B)  cold
C)  neither warm nor cold
D)  stationaryE) C) and D)
F) A) and D) B

Question 7

Most severe thunderstorms that occur in the middle latitudes form along or ahead of cold fronts.

Accepted Answer

A) True 
 B)False

Question 8

Thunder is produced by lightning.

Accepted Answer

A) True 
 B)False

Question 9

Tornadoes are cyclonic,while hurricanes are anticyclonic.

Accepted Answer

A) True 
 B)False

Question 10

Midwestern farmers used to say "mare's tail and mackerel scales bring the storm down on you head"; Mare's tails are cirrus clouds and mackerel scales are cirrostratus.When this sequence is followed by altostratus the old farmers were talking about an approaching ________ front.

Accepted Answer

A)  warm
B)  cold
C)  warm or cold
D)  none of theseE) None of the above
F) B) and D) A

Question 11

The boundary between air masses having different densities is called a(n)________.

Accepted Answer

The answer of The boundary between air masses having different...

Question 12

A Category 5 hurricane in the open water can obtain top wind speed comparable to ________.

Accepted Answer

A)  a plane flying near supersonic speed
B)  an F4 tornado
C)  an F1 tornado
D)  the top speed of an old style Volkswagen beetleE) B) and C)
F) A) and D)

Question 13

Hurricanes generally are ________.

Accepted Answer

A)  larger than tornadoes
B)  smaller than mid-latitude cyclones
C)  areas of heavy rainfall and strong winds
D)  all of theseE) None of the above
F) B) and C)

Question 14

Continental polar air masses seldom influence the weather south of the Great Lakes.

Accepted Answer

A) True 
 B)False  False

Question 15

Divergence aloft helps maintain surface lows.

Accepted Answer

A) True 
 B)False

Question 16

Cold fronts usually move more slowly than warm fronts.

Accepted Answer

A) True 
 B)False

Question 17

Thunderstorms form from what type of cloud?

Accepted Answer

A)  cumulonimbus
B)  stratus
C)  altostratus
D)  cirrusE) A) and B)
F) A) and C)

Question 18

A cT air mass is dry and warm.

Accepted Answer

A) True 
 B)False

Question 19

A tornado watch is issued by the National Weather Service after a tornado has been sighted in an area.

Accepted Answer

A) True 
 B)False

Question 20

Precipitation associated with a cold front is usually more intense and shorter in duration than precipitation generated by a warm front.

Accepted Answer

A) True 
 B)False

Exam 19: Weather Patterns and Severe Weather

Describe the sequence of events that occur when a fully developed midlatitude cyclone passes just to your north,including cloud sequences,frontal passages,and barometric conditions.

Correct AnswerverifiedThe barometer begins to fall as high cir...View AnswerShow Answer

A continental Polar (cP) air mass that originates in Siberia and is subsequently altered to ________ when crossing the north Pacific

Correct AnswerverifiedShow Answer

When a TV weather forecaster gives a forecast for "widely scattered afternoon thunderstorms," these storms are probably associated with ________.

Correct AnswerverifiedShow Answer

Surface cyclones are accompanied by divergence aloft.

Correct AnswerverifiedShow Answer

Continental tropical air masses are most prominent in what part of North America?

Correct AnswerverifiedShow Answer

A wind shift from south or southwest to northwest is commonly associated with the passage of a ________ front.

Correct AnswerverifiedB

Most severe thunderstorms that occur in the middle latitudes form along or ahead of cold fronts.

Correct AnswerverifiedShow Answer

Thunder is produced by lightning.

Correct AnswerverifiedShow Answer

Tornadoes are cyclonic,while hurricanes are anticyclonic.

Correct AnswerverifiedShow Answer

Midwestern farmers used to say "mare's tail and mackerel scales bring the storm down on you head"; Mare's tails are cirrus clouds and mackerel scales are cirrostratus.When this sequence is followed by altostratus the old farmers were talking about an approaching ________ front.

Correct AnswerverifiedA

The boundary between air masses having different densities is called a(n)________.

Correct AnswerverifiedShow Answer

A Category 5 hurricane in the open water can obtain top wind speed comparable to ________.

Correct AnswerverifiedShow Answer

Hurricanes generally are ________.

Correct AnswerverifiedShow Answer

Continental polar air masses seldom influence the weather south of the Great Lakes.

Correct AnswerverifiedFalse

Divergence aloft helps maintain surface lows.

Correct AnswerverifiedShow Answer

Cold fronts usually move more slowly than warm fronts.

Correct AnswerverifiedShow Answer

Thunderstorms form from what type of cloud?

Correct AnswerverifiedShow Answer

A cT air mass is dry and warm.

Correct AnswerverifiedShow Answer

A tornado watch is issued by the National Weather Service after a tornado has been sighted in an area.

Correct AnswerverifiedShow Answer

Precipitation associated with a cold front is usually more intense and shorter in duration than precipitation generated by a warm front.

Correct AnswerverifiedShow Answer

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