Podcast
Questions and Answers
Which air mass is rarely found in summer in North America?
Which air mass is rarely found in summer in North America?
What type of air mass typically comes from the USA in April?
What type of air mass typically comes from the USA in April?
Which type of slope and valley winds occur during daytime?
Which type of slope and valley winds occur during daytime?
What will be encountered when rain falls but evaporates before reaching the ground?
What will be encountered when rain falls but evaporates before reaching the ground?
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What does ACAS II provide?
What does ACAS II provide?
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Which kinds of air masses can be found in winter?
Which kinds of air masses can be found in winter?
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What is the Temp range for clear ice in cumulus cloud?
What is the Temp range for clear ice in cumulus cloud?
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What is the comm failure procedure for flight in CVFR?
What is the comm failure procedure for flight in CVFR?
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At FL280 OAT is -48°C. What is ISA?
At FL280 OAT is -48°C. What is ISA?
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What is the VOR range for the scenario given?
What is the VOR range for the scenario given?
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Where is a low level jet stream most likely to occur?
Where is a low level jet stream most likely to occur?
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How does AP work?
How does AP work?
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Where is frontal fog most likely to occur?
Where is frontal fog most likely to occur?
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What information will LWIS provide?
What information will LWIS provide?
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How does temp affect the height of pressure levels? 
How does temp affect the height of pressure levels? 
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When will radiation fog occur? 
When will radiation fog occur? 
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Volmet contains? 
Volmet contains? 
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Pirep: FL120/WV24015/light rime icing on climb out
Pirep: FL120/WV24015/light rime icing on climb out
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Study Notes
Air Masses in North America
- In summer, the predominant air mass is MA (Maritime Arctic), while CA (Continental Arctic) appears rarely, and MP (Maritime Polar) can also be found.
- The air mass that rarely appears in summer is CA.
- In April, an MT (Maritime Tropical) air mass typically moves in from the USA.
- During winter, the air masses present are CA, MP, and MA.
Weather Phenomena
- Virga is a phenomenon where precipitation evaporates before reaching the ground.
- A dry microburst is encountered when rain falls but does not reach the ground, often occurring alongside virga.
Wind Types
- Daytime slope and valley winds exhibit an anabatic type, characterized by warm air rising up slopes.
- Other types of winds include adiabatic and katabatic, with only adiabatic being associated with vertical temperature changes without heat transfer.
ACAS II Functionality
- ACAS II provides a Resolution Advisory (RA) only, similar to TCAS II (Traffic Collision Avoidance System).
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Description
Test your knowledge on air masses and their seasonal variations in North America. This quiz covers key concepts related to meteorological phenomena experienced during summer and winter. Prepare to answer questions about specific air masses and their characteristics!
