Wx Flashcards
The amount of water vapor air can hold depends on
Air temperature
Review convective outlook to find information on
Slight, moderate or high risk of severe thunderstorm activity
Nimbostratus is
Cloud with vertical development and rain
After activating the pneumatic deicing boots, residual ice on the wing will
Increase as airspeed or temperature decrease
What type of icing (where)? Super cold, large droplets splash or splatter at temperatures below 5°C.
Ice that forms on the wing after of the active part of the DEICING BOOTS
You suspect ice contaminated tail plane stall. You should…
Retract flaps and prepare for NO FLAP landing
Stability of air mass can be determined by
Cloud types and types of precipitation
What info is provided by convective outlook (AC)?
8 days
Ice pellets at surface means
Freezing rain at higher altitude
Sandpaper ice or frost
Reduce lift 30%
Increase track 40%
Where is airplane icing most difficult to identify??
Flat upper wing surface
Strength and location of jetstream
Weaker and farther north in the summer
Relationship between the winds at 2000 feet and surface winds?
2000 feet winds, parallel isobars
Surface Winds cross isobars at angle and are weaker
Deicing equipment on some aircraft may be unable to remove
Frost
Which situation likely results in freezing rain?
Rain falling from air with a temp of more than zero, into air below zero
