TAF
- cloud is given in AGL
Changes in deterioration to condition which require an alternate the requirement
takes place form 30mins before the start time
Change indicated is improving
remove the requirement of an alernate until 30min after the BCMG has prevailed
Alternate requirement for tempo
30min buffer period apply before and after the tempo
Inter period
significant changes in condition for up to 30min
TTF (validity
valid for 3hours from the time of issue
ARFORS
GAF
VIS = m heights = ASML
TRUE or MAGNETIC except for what
all forecast is given in true
ATIS + AWIS is the magnetic direction
Alternate Requirement
Alternates could very well prove lift savers