NIFE Weather review Latest Update 2025-2026
165 Questions and 100% Verified Correct
Answers Guaranteed A+
Can Dew Point ever be greater than ambient air temperature? - CORRECT ANSWER: -
No
-Dew point is equal to or less than Air Temp
Characteristics of an inactive front - CORRECT ANSWER: -Clouds and precipitation do
not accompany inactive fronts
-Reason for showing them is to indicate the boundary of opposing air masses and it
displays the location of potentially unfavorable flying weather
Clouds may be defined as ___________. - CORRECT ANSWER: -The visible
manifestation of weather
-The most important element in the formation of clouds is water vapor
Define Atmospheric Pressure (Barometric Pressure) - CORRECT ANSWER: -Pressure
exerted on a surface by the atmosphere due to the weight of the column of air directly
above that surface
-Pressure always decreases with altitude (decreases more rapidly at lower altitudes
because of decreasing density)
Define obscuring phenomena - CORRECT ANSWER: -Any collection of particles that
reduce horizontal visibility to 6 or less miles (less than 7 based on old book)
-Haze, Smoke, Rain and Drizzle, Snow, Blowing Snow, Dust and Sand
-Full list on pg 83
,Describe a Land Breeze - CORRECT ANSWER: -During the day, water retains heat
more than the ground
-Less dense air over the water rises and is replaced by cooler, less dense air from land
-Air then cools down over the land and repeats the cycle
-Weaker than a sea breeze
Describe a Sea Breeze - CORRECT ANSWER: -During the day, land heats up faster
than water
-Less dense air rises over the ground (creating low pressure) and is replaced by cooler,
more dense air from the water
-Air then cools over the water and descends, repeating the cycle
-15-20 knots
Describe Advection fog - CORRECT ANSWER: -Occurs when warm, moist air moves
over a cold surface and air is cooled to the dew point
-Common in coastal areas and is referred to as "sea fog"
-Fog becomes thicker and denser as the wind speed increases up to 15 knots
-Only dissipates with a wind shift, blowing the fog away
Describe Buys Ballot's Law - CORRECT ANSWER: If the wind is at your back, the area
of lower pressure will be to your left
Describe clear icing - CORRECT ANSWER: -Forms between 0 and -10C
-Large water droplets due to unstable air (cumulus)
-Water droplets move along with the airflow, freeze gradually, and form a solid layer of
ice
-Builds fast, can freeze flight controls, and disrupts airflow over the wings
,Describe compressor icing - CORRECT ANSWER: -Ice forming on compressor inlet
screens and compressor inlet guide vanes will restrict the flow of inlet air, which could
cause an engine flameout
-Indications are loss of thrust, rapid rise in exhaust gas temperature, increase in fuel
flow, ITT rise, decrease in Engine RPM, etc
Describe each of the methods of lifting - CORRECT ANSWER: 1) Convergence:
convergence of two air masses, or parts of a single air mass that force the air upwards
2) Frontal: cold fronts lift the air ahead
3) Orographic: force of the wind against a mountainside pushes the air upward
4) Thermal (convective): cool air is over a warm surface and is heightened by intense
solar heating
FOCT
Describe Frontal turbulence - CORRECT ANSWER: -Lifting of warm air by a frontal
surface leading to instability
-Abrupt wind shift between warm and cold air masses
-Moist, unstable warm air produce the strongest vertical currents
-Most severe frontal turbulence associated with fast moving cold fronts
Describe frost - CORRECT ANSWER: -Thin layer of crystalline ice that forms on
exposed surface
-Disrupts the smooth boundary layer flow over airfoils, increases drag, causes a loss of
lift, and increases stall speed
-Unlikely to add considerable weight to an aircraft, but you still can't fly with it
Describe how clouds form - CORRECT ANSWER: -Clouds form when air becomes
saturated either by 1) being cooled to dew point or 2) the addition of moisture
-Most clouds form from some lifting process followed by atmospheric cooling
, -Water vapor condenses on condensation nuclei
Describe Mechanical turbulence - CORRECT ANSWER: -Wind flowing over/around
irregular terrain or obstructions create turbulent eddies
-Strength of turbulence depends on wind speed, roughness of terrain, and ***stability of
the air*** (most important factor)
Describe mixed icing - CORRECT ANSWER: -Combination of clear and rime ice
-Occurs at temperatures form -8 to -15C
-Lumpy like rime ice but also hard and dense like clear ice
-Most frequent type of icing encountered
Describe Radiation fog - CORRECT ANSWER: -Forms as nocturnal cooling reduces the
air temperature to the dew point temperature
-Cooling begins around 1530-1600 and lasts until shortly after sunrise
-Radiation fog will only dissipate because of winds > 10 knots or through strong solar
heating
Describe rime icing - CORRECT ANSWER: -Milky white in appearance
-Occurs between -10 and -20C
-Lighter, softer, and less transparent than clear ice
-Occurs in stable conditions (stratiform clouds)
-Brittle and fairly easy to break off
-Protrudes forward into the air stream along the leading edge of airfoils
Describe the three characteristics of precipitation - CORRECT ANSWER: 1) Shower:
sudden beginning and ending; abruptly changing intensity or sky conditions;
(cumuliform)
2)Continuous: steady; intensity changes gradually; (stratiform)
165 Questions and 100% Verified Correct
Answers Guaranteed A+
Can Dew Point ever be greater than ambient air temperature? - CORRECT ANSWER: -
No
-Dew point is equal to or less than Air Temp
Characteristics of an inactive front - CORRECT ANSWER: -Clouds and precipitation do
not accompany inactive fronts
-Reason for showing them is to indicate the boundary of opposing air masses and it
displays the location of potentially unfavorable flying weather
Clouds may be defined as ___________. - CORRECT ANSWER: -The visible
manifestation of weather
-The most important element in the formation of clouds is water vapor
Define Atmospheric Pressure (Barometric Pressure) - CORRECT ANSWER: -Pressure
exerted on a surface by the atmosphere due to the weight of the column of air directly
above that surface
-Pressure always decreases with altitude (decreases more rapidly at lower altitudes
because of decreasing density)
Define obscuring phenomena - CORRECT ANSWER: -Any collection of particles that
reduce horizontal visibility to 6 or less miles (less than 7 based on old book)
-Haze, Smoke, Rain and Drizzle, Snow, Blowing Snow, Dust and Sand
-Full list on pg 83
,Describe a Land Breeze - CORRECT ANSWER: -During the day, water retains heat
more than the ground
-Less dense air over the water rises and is replaced by cooler, less dense air from land
-Air then cools down over the land and repeats the cycle
-Weaker than a sea breeze
Describe a Sea Breeze - CORRECT ANSWER: -During the day, land heats up faster
than water
-Less dense air rises over the ground (creating low pressure) and is replaced by cooler,
more dense air from the water
-Air then cools over the water and descends, repeating the cycle
-15-20 knots
Describe Advection fog - CORRECT ANSWER: -Occurs when warm, moist air moves
over a cold surface and air is cooled to the dew point
-Common in coastal areas and is referred to as "sea fog"
-Fog becomes thicker and denser as the wind speed increases up to 15 knots
-Only dissipates with a wind shift, blowing the fog away
Describe Buys Ballot's Law - CORRECT ANSWER: If the wind is at your back, the area
of lower pressure will be to your left
Describe clear icing - CORRECT ANSWER: -Forms between 0 and -10C
-Large water droplets due to unstable air (cumulus)
-Water droplets move along with the airflow, freeze gradually, and form a solid layer of
ice
-Builds fast, can freeze flight controls, and disrupts airflow over the wings
,Describe compressor icing - CORRECT ANSWER: -Ice forming on compressor inlet
screens and compressor inlet guide vanes will restrict the flow of inlet air, which could
cause an engine flameout
-Indications are loss of thrust, rapid rise in exhaust gas temperature, increase in fuel
flow, ITT rise, decrease in Engine RPM, etc
Describe each of the methods of lifting - CORRECT ANSWER: 1) Convergence:
convergence of two air masses, or parts of a single air mass that force the air upwards
2) Frontal: cold fronts lift the air ahead
3) Orographic: force of the wind against a mountainside pushes the air upward
4) Thermal (convective): cool air is over a warm surface and is heightened by intense
solar heating
FOCT
Describe Frontal turbulence - CORRECT ANSWER: -Lifting of warm air by a frontal
surface leading to instability
-Abrupt wind shift between warm and cold air masses
-Moist, unstable warm air produce the strongest vertical currents
-Most severe frontal turbulence associated with fast moving cold fronts
Describe frost - CORRECT ANSWER: -Thin layer of crystalline ice that forms on
exposed surface
-Disrupts the smooth boundary layer flow over airfoils, increases drag, causes a loss of
lift, and increases stall speed
-Unlikely to add considerable weight to an aircraft, but you still can't fly with it
Describe how clouds form - CORRECT ANSWER: -Clouds form when air becomes
saturated either by 1) being cooled to dew point or 2) the addition of moisture
-Most clouds form from some lifting process followed by atmospheric cooling
, -Water vapor condenses on condensation nuclei
Describe Mechanical turbulence - CORRECT ANSWER: -Wind flowing over/around
irregular terrain or obstructions create turbulent eddies
-Strength of turbulence depends on wind speed, roughness of terrain, and ***stability of
the air*** (most important factor)
Describe mixed icing - CORRECT ANSWER: -Combination of clear and rime ice
-Occurs at temperatures form -8 to -15C
-Lumpy like rime ice but also hard and dense like clear ice
-Most frequent type of icing encountered
Describe Radiation fog - CORRECT ANSWER: -Forms as nocturnal cooling reduces the
air temperature to the dew point temperature
-Cooling begins around 1530-1600 and lasts until shortly after sunrise
-Radiation fog will only dissipate because of winds > 10 knots or through strong solar
heating
Describe rime icing - CORRECT ANSWER: -Milky white in appearance
-Occurs between -10 and -20C
-Lighter, softer, and less transparent than clear ice
-Occurs in stable conditions (stratiform clouds)
-Brittle and fairly easy to break off
-Protrudes forward into the air stream along the leading edge of airfoils
Describe the three characteristics of precipitation - CORRECT ANSWER: 1) Shower:
sudden beginning and ending; abruptly changing intensity or sky conditions;
(cumuliform)
2)Continuous: steady; intensity changes gradually; (stratiform)
