Meteorological Flashcards
1
Q
What is SIGWX forecast chart ?
A
Forecast significant wx expected in airspace
FL250-FL650: SIGWX High (SWH)
FL100-FL250: SIGWX Medium (SWM)
2
Q
When does SIGWX valid for ?
A
Valid for 00, 06, 12, 18 UTC
3
Q
When does SWH available ?
SIGWX High
A
16 hours before validity
4
Q
When does SWM available?
SIGWX Medium
A
20 hours before validity
5
Q
How long is the validity of SIGMET ?
A
4 hours
for volcanic ash cloud and tropical cyclone: 6hour
6
Q
How do you use SIGWX chart ?
A
3 hours before and after the validity time
7
Q
How long is a TAF valid ?
A
Max 30 hour
8
Q
What is the validity of TAF ?
A
Not less than 6 hours nor more 30 hours
9
Q
TAF less than 12 hour
How often will it be issued ?
A
every 3 hour
10
Q
TAF from 12 to 30 hour
How often will it be issued ?
A
Every 6 hour
