Weather Flashcards
How long is a TAF valid for?
24hrs (issued 4 times daily) 5sm range
How far away do you avoid Tstorms?
20nm
3 stages of a Tstorm
Developing, Maturing, Dissipating
What Tstorm stage will you find microbursts
Dissipating
What side of anvil do you deviate?
Upwind
What is a microburst?
Rapidly descending column of air
What is Virga?
precipitation that evaporates before reaching the ground, heavy downdrafts associated
Factors needed for Tstorm development
Unstable lapse rate, moisture, lifting force
What weather is associated with cold/warm fronts?
Cold: Tstorms/buildup
Warm: steady rain/low vis
What to look out for with Tstorms?
Turbulence, lightning, hail, microbursts
Types of icing
Clear/Rime/Mixed
Structural, instrument, induction
Types of hydroplaning
Dynamic/Viscous/Reverted
Related to tire pressure and speed
9x sqrt psi
METAR CODEs (1-9)
1- 6hr max temp
2- 6hr min temp
4/ snow depth
4- 24hr max min temp
5- 3hr pressure
6- 3/6hr precip
7- 24hr precip
8- clouds
98- sunshine duration
SLP- sea level pressure
T- hourly temp/dew point 0=+ 1=-