Thunderstruck
These 3 conditions are the recipe for a thunderstorm.
What is moist air, a lifting mechanism, and unstable atmosphere.
Why is frost on wings considered hazardous to flight?
Frost spoils the smooth airflow over the wings, thereby decreasing lifting capability.
Also increased drag from added friction from the roughness of its surface and added weight.
Direction of a high pressure system?
Down, clockwise, and outwards
Type of fog we experience most in the Central Valley?
Radiation fog
What are the 4 levels of turbulence intensity?
Light - slight changes in altitude/attiude. Slight strain against your seatbelt.
Moderate - Changes in altitude/speed/attitude but positive control of aircraft. Unsecured objects are displaced.
Severe - Large changes in the above. Aircraft momentarily out of control. Pilots forced violently against seatbelts
Extreme - Aircraft is violently tossed around. Structural damage. Impossible to control.
Between 0 degrees C and -15 degrees C is where you can often find these types of droplets
supercooled water droplets
Direction of air flowing around a low pressure system?
Counter-clockwise, up, and inward
A lens shape cloud that appears stationary that may contain winds of 50kts or more is referred to as...
What is a Lenticular cloud
How far should you stay away from a thunderstorm and why?
20 NM. You can encounter hail and violent turbulence anywhere within 20 miles of very strong thunderstorms.
This is a line of thunderstorms extending laterally for hundreds of miles.
A squall line
What weather conditions are needed to exist for structural icing to form
Temps around freezing and visible moisture.
What is a front
Boundary layer between two types of air masses.
The suffix nimbus used in naming clouds means...?
ex) Cumulonimbus
A rain cloud
The amount of water vapor which air can hold depends on the
air temperature
warm air can hold more water vapor
What weather phenomenon is always associated with a thunderstorm?
Lightning.
Lightning causes thunder.
Airmet associated with Icing
Zulu
What are millibars and what do they depict?
Areas of like pressure
AIRMET that depicts IFR Conditions/Mtn Obscuration
AIRMET Sierra
How would I know I am approaching a Microburst?
You would experience turbulence and a rapid increase in airspeed as you pick up a headwind. You start to climb as your performance increases.
Then once you're in it, you move to a tailwind, drop speed, and lose altitude.
During the life cycle of a thunderstorm, which stage is characterized by downdrafts?
The Dissipating stage
What are the different types of structural icing and how do they look?
Rime, clear, mixed.
Elongated area of low pressure is ____
Trough
You and the boys decide to try your first scud run. When you encounter the weather you may experience illusions. What are they?
Inverted illusion. Coriolis effect. spatial disorientation.
You and the boys decide to chug some booze after you receive your Private Pilot certificate and go on your XC for a $100 burger. You pass the 8 hours but still feel effects on the flight back. What type of hypoxia would you feel and what symptoms would you have?
Histotoxic hypoxia