Show:
Definitions
Cause and Effect
Absolutely No Absolutes
Clouds
Obscure Stuff
100
Nimbo
What is prefix added to a cloud type to indicate rain falling from the cloud?
100
Moisture, instability, and a lifting force
What three things are necessary for a thunderstorm to form?
100
cold air displacing warm air
What is a cold front?
100
fractus or fracto
What suffix or prefix is added to a cloud name to mean broken?
100
2 degrees C; 1.5 degrees C; and 3 degrees C
What the standard, moist, and dry temperature lapse rates?
200
nimbus
What is suffix added to a cumulus cloud to indicate rain falling from the cloud?
200
An atmospheric condition or characteristic that occurs when warm air is blown across a lake that contains cold water.
What are stable conditions?
200
A front forms where no front was previously detected
What is frontogenesis?
200
caused by vertically moving currents in unstable air
What are cumulus clouds?
200
the temperature lapse rate that is measured by instruments
What is the environmental lapse rate?
300
The altitude at which air temperature reaches 0 degrees C.
What is the freezing level?
300
Clear ice can form in areas that are not deiced.
What can happen when latent heat release causes part of a supercooled, large water droplet to flow past a wing's deicing area before it freezes?
300
You are most likely to be hit by lightning here
What is the freezing level in a thunderstorm?
300
Parallel to the isobars
What is wind flow above the friction layer?
300
rough, opaque ice accumulation
What is rime ice?
400
An anvil forms
What happens when the top of a thunderstorm reaches the Tropopause?
400
Temperature change due solely to a change in air pressure
What is adiabatic?
400
at minus 40C and below
When you are flying in cloud, when are you least likely to encounter icing?
400
because the Earth rotates
Why does air not flow directly from high to low pressure? or Why does the Earth's atmosphere have six climate cells? and Perhaps others
400
mixed icing
What is the most commonly encountered type of icing? or What is a mixture of clear and rime ice?
500
This feature often indicates the direction of movement for a thunderstorm
What is an anvil?
500
Weather phenomena typically found in both cold and warm fronts
What kind of weather conditions can a pilot expect when flying through an Occluded front?
500
+0 to -15 -15 to -40 -40 and below
What are the three icing ranges described in Aviation Weather?
500
a semi-permanent area of low pressure and convective activity
What is the Inter tropical Convergence Zone (ITCZ)?
500
It would be more accurate to refer to this temperature as the temperature at which ice begins to melt
What is 0 degrees C (usually called the freezing point).