Weather

Question 1

TEMPO meaning / usage ?

Answer 1

60 mins temporary weather change

If forecast to be < company minima they should be regarded as above company minima at planning stage…

However flight shall not be conducted if analysis of all data indicates below company minima

Question 2

Inter meaning

Answer 2

Intermittent change in weather for 30 mins or less.

Don’t apply data as being below company minima even if it is…

Question 3

Vertical VIS reported instead of cloud condition?

Answer 3

Vertical VIS can be treated as height of CIG

Question 4

METAR AUTO / can you use ?

Answer 4

Automatically generated METAR (not from ATC unit)

• can’t use QNH

Kadena (RODN) / Yokota (RJTY) ok to use as checked both auto and visually

• Use VIS / CIG for planning but not for applying company minima inflight

Question 5

METAR / SPECI ?

Answer 5

SPECI is special weather report issued when there is significant deterioration or improvement in airport weather conditions, such as significant changes of surface winds, visibility, cloud base height and occurrence of severe weather.

Auto reported and can be used

Question 6

Abbreviations decode

Answer 6

• light,
  + = heavy,
  VC = vicinity,
  MI = shallow
  BC = patches,
  SH = showers
  PR = partial
  TS = thunderstorms,
  DZ = drizzle
  RA = rain
  BR = mist
  FG = fog
  HZ = haze,
  +SHRA = heavy showers of rain,
  -DZ = light drizzle