Thunderstorms Flashcards
1460
What is indicated by the term “embedded thunderstorms”?
Thunderstorms are obscured by massive cloud layers and cannot be seen.
1478
Where do squall lines most often develop?
Ahead of a cold front.
1479
During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Dissipating.
1480
Which weather phenomenon is always associated with a thunderstorm?
Lightning.
1481
Which thunderstorms generally produce the most severe conditions, such as heavy hail and destructive winds?
Squall line.
1482
To maintain control if you unintentionally penetrate embedded thunderstorm while in IMC, you should
Set power for recommended turbulence penetration airspeed an attempt to maintain a level flight attitude.
1484
What are the requirements for the formation of a thunderstorm?
Sufficient moisture, an unstable lapse rate , and a lifting action.
1830
You see the need to deviate from a storm ahead. You know that
ATC workload may affect their ability to accommodate this request.
2674
It is dangerous to fly in the vicinity of a dissipating thunderstorm because this stage of its life cycle is characterized by
Downdrafts.
2711
When circumnavigating a large cumulonimbus cell, flying under the anvil
should be avoided due to the possibility of hail.
Circumnavigating: SHOULD be avoided!
2718
You are on an IFR flight when you receive a weather update. A fast-moving cold front is approaching your route of flight. You are currently flying in a warm area with high moisture. What weather conditions do you expect based on this update?
Squall lines with hazardous weather conditions.
Fast-moving cold front: Squall lines
2730
A flight through the mature stage of a thunderstorm, characterized by rain beginning on the surface, would experience
strong winds, heavy rain and icing.
2829
What weather phenomenon poses the greatest hazards to aircraft when operating near thunderstorms?
Lightning.
- When flying under a thunderstorm which has just entered the mature stage, as demonstrated by rain starting of fall at the base, a pilot might
Downdrafts.
3270
The probability of a lightning strike occurring to aircraft at altitude is
Greater between temperatures of -5C and 5C.
Lightning 5 & 5
3278
What weather conditions would you expect if the weather briefer tells you that “extensive cumulonimbus clouds can be expected along your route of flight?”
Thunderstorms and rain.