#1. Who prepares National SIGWX Charts
National SIGWX charts are prepared by the World Area Forecast Centres (WAFC).
#2. Flight Level of freezing Level is included in _____ SIGWX Charts
Freezing levels are indicated in medium level SIGWX charts.
#3. Fog, Precipitation and weather which reduce visibility below 5000 m is considered Significant weather for
Significant weather affecting visibility below 5000 m is primarily for low level flights.
#4. Briefing and Consultation are generally provided to the aircrew ______ hours prior to the scheduled departure
Aircrew briefings are typically provided 3 hours before departure.
#5. SIGMET information is provided to
SIGMETs are issued for all level flights as they indicate significant weather hazards.
#6. For Low Level flights, and those under Visual Flight Rules, briefing is given up to
Briefings for low level and VFR flights are given up to FL150 or higher in mountainous areas.
#7. The height indications in the Flight Documentation in all en-route Met conditions : eg upper winds, turbulence, cloud base/top etc is
Flight documentation heights are given in Flight Levels (FL) for consistency.
#8. The height indications in the Flight Documentation in all aerodrome Met conditions : eg base and top of clouds
Aerodrome cloud base/top heights are indicated above aerodrome elevation.
#9. For National Flights the Documents provided are -
Both WAFC upper wind/temp charts and National SIGWX charts are provided for national flights.
#10. For National Flights the winds and temperatures are provided for LL Flights for altitudes
LL flights are provided winds/temps for 600, 1500, and 300 m altitudes.
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