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What hazards are associated with thunderstorms?
What hazards to flight are associated with thunderstorms?
Which is an indication of turbulence found in thunderstorms?
Which type clouds could indicate the possibility of microburst activity?
Convective and Cumulonimbus
Which telltale signs in the vicinity of thunderstorms should alert you to the possibility of microburst activity?
- Roll clouds
- Gusty conditions
- Blowing dust
Which are thunderstorm recommended flight techniques?
- Penetration of a thunderstorm should be at an altitude of 4000 to 6000 feet AGL
- When flying under a thunderstorm, select an altitude 1/3 the distance from the surface to the base of the cloud
What effects can turbulence have on an aircraft?
- Change altitude
- Structural damage
- Extra stress on airframe
Effect of turbulance depends on ____ of trubulance and ____ of aircraft.
Describe the difference between a tornado and a funnel cloud with respect to the surface.
a tornado touches the surface a funnel cloud does not.
An intense, localized downward flow with velocities of 2000 to over 6000 fpm
What is NEXRAD?
Next Genration Radar, used to track thunderstorms
What do roll and wall clouds indicate?
the presence of low level wind shear and extreme turbulance
A ______ forms on the surface at the leading edge of an advancing thunderstorm
What methods can be used to detect a microburst?
- Visual cues
- Wind shear alert systems
- Departure/Arrival wx reports
Why do you want to fly over the top, at least 1000 feet per knots of wind speed at cloud top level, to void a thunderstorm?
It allows an altitude margin for turbulance and hail
Why do you want to penetrate the lower ⅓ of a thunderstorm?
Most storms are most severe in the top 2/3
What hazards are associated with lightning?
- static buildup
- strike aircraft
- structural damage
- fuel ignition
- flash blindness
Why do you want to penetrate a thunderstorm perpendicular?
Minimize time in storm