ATMO 201 COMPREHENSIVE EXAMS SET
TESTED QUESTIONS AND CORRECT
ANSWERS
●● Where do air masses originate?
Answer: source regions (flat and uniform composition, light winds)
●● How are air masses classified?
Answer: temperature and humidity
●● Air Mass Classification
Answer: -C- Continental (dry)
-M- Maritime (moist)
-T- Tropical
-P- Polar
-A- Arctic
-M- Monsoon
-E- Equatorial
●● Continental Polar (cP)
, Answer: cold and dry
●● Continental Arctic (cA)
Answer: very cold, very dry stable air mass
●● lake effect snow
Answer: Snow created when cold air flows over relatively warm water
then over cold land
●● Maritime Polar (mP)
Answer: unstable cold, moist air mass that forms over cold oceans--
Winter and Summer- cold and humid
●● pacific air
Answer: Cool, moist air that originates over the Pacific Ocean, moves
eastward, then descends the Rocky Mountains and moves over the plains
as dry, stable, relatively cool air.
●● Maritime Tropical (mT)
Answer: warm, moist air mass that is formed over water
Stable if in Pacific Ocean (weather is warm and humid)
Unstable in Atlantic Ocean(weather is warm and humid
TESTED QUESTIONS AND CORRECT
ANSWERS
●● Where do air masses originate?
Answer: source regions (flat and uniform composition, light winds)
●● How are air masses classified?
Answer: temperature and humidity
●● Air Mass Classification
Answer: -C- Continental (dry)
-M- Maritime (moist)
-T- Tropical
-P- Polar
-A- Arctic
-M- Monsoon
-E- Equatorial
●● Continental Polar (cP)
, Answer: cold and dry
●● Continental Arctic (cA)
Answer: very cold, very dry stable air mass
●● lake effect snow
Answer: Snow created when cold air flows over relatively warm water
then over cold land
●● Maritime Polar (mP)
Answer: unstable cold, moist air mass that forms over cold oceans--
Winter and Summer- cold and humid
●● pacific air
Answer: Cool, moist air that originates over the Pacific Ocean, moves
eastward, then descends the Rocky Mountains and moves over the plains
as dry, stable, relatively cool air.
●● Maritime Tropical (mT)
Answer: warm, moist air mass that is formed over water
Stable if in Pacific Ocean (weather is warm and humid)
Unstable in Atlantic Ocean(weather is warm and humid