Weather Flashcards
What does MIFG mean on a METAR?
Shallow Fog
Explain your current planes Windshear escape procedure
Airbus A320
What does VIRGA stand for?
What does it mean?
What does VIRGA stand for? - Variable Intensity Rainfall Gradient Aloft
Describes a rain shower that evaporates before reaching the ground. This can indicate strong uplift, and very unstable air, thus indicating an area of turbulence.
What threats are associated with VIRGA?
Downdrafts & Microbursts
What does 5/5/5 mean on ATIS?
What are the names of each 3rd section of the runway?
What are the Runway Action codes and meaning?
It means braking action is good on each 3rd of the runway.
Names of each 3rd section of the runway: Touchdown, Midpoint, Rollout
6 Dry
5 Good
4 Good to medium
3 Medium
2 Medium to poor
1 Poor
How long does a microburst last?
5 to 15 minutes
When a runway code is given where is it measured from the runway?
Every 3rd of the runway
What is the METAR code for Hail, Mist, Haze?
What does the “$” mean?
GR, BR, HZ
$ - It means that the value given for a particular measurement is an estimate, rather than an exact value. Usually meaning the sensor or instrument used to make the measurement is not working correctly.
What is a TAF? How long is it valid? Can it be valid longer than that?
Terminal Aerodrome Forecast, issued every 6 hours valid for 24 hrs (up to 30 hrs)
What is METAR? How long is it valid for?
Meteorological Aerodrome Report. 1 hour validity.
What does SIGMET stand for?
What kind of weather can be expected?
What are the criteria for SIGMET?
What does SIGMET stand for? - Significant meteorological information
What kind of weather can be expected? - Turbulence, icing, dust, sand, volcanic ash
Criteria for SIGMET:
Dust, sand, volcanic activity, icing, severe turbulence over a 3,000-square-mile area
What are the three types of hydroplaning?
3 types of Hydroplaning:
1. Dynamic hydroplaning - thin layer of water and the wheel, as the tire moves, speed increases, accumulation of water ahead of the tire increases. At a certain point reached, the tire is lifted off by the water and no longer has frictional contact with the surface
2. Viscous hydroplaning - deals with the properties of water. When the property is too thick, the wheel is lifted and lose frictional contact with the runway
3. Reverted rubber hydroplaning - dangerous because it can happen at low speeds without the pilot being aware of it. When the pilot brakes hard, the water and the hot brakes react to melting of the brakes which causes the tires to skid
How can we prevent hydroplaning during landing?
Plan for a firm touchdown
REMINDER: STUDY METAR IN BRAINSCAPE “LEONARDO: MISC: METAR” FOR ADDITIONAL CARDS
REMINDER: STUDY METAR IN BRAINSCAPE “LEONARDO: MISC: METAR” FOR ADDITIONAL CARDS
