#1. For non-scheduled National Flights an advance notice (before ETD) is required to be given to AMOs
AMOs require a 3 hr advance notice for non-scheduled national flights.
#2. For non-schedules National Flights an advance notice (before ETD) is required to be given to AMSs
AMSs also require a 3 hr advance notice.
#3. WAFS provides high quality en-route forecasts of _____ to Met Offices.
WAFS provides upper air winds and temperature forecasts.
#4. IMD has ______ Regional Met offices
India has 4 Regional Meteorological Offices.
#5. There are ______ Aerodrome Met Offices
There are 18 Aerodrome Meteorological Offices.
#6. There are ______ Aeronautical Met Stations
India has 54 Aeronautical Meteorological Stations.
#7. In AIREP the Met Information is contained in Section
Met information is included in Section 1 of AIREPs.
#8. TAF are generally valid for
TAF reports are valid for 18 hours.
#9. The validity of Landing Forecast (TREND) is
TREND reports are valid for 1 hour.
#10. Landing Forecast is append to
TREND information is appended to METAR and SPECI reports.
#11. Local/Area Forecast is issued three times a day valid for next
Local/Area forecast is valid for 18 hours.
#12. Area Forecast covers an area
Area Forecasts cover 100 Nautical Miles area.
#13. Global SIGWX Charts are issued by
Global SIGWX charts are issued by WAFC.
#14. Global SIGWX Charts are valid for
Global SIGWX charts are valid for 24 hours.
#15. Global SIGWX Charts for high-level are issued for Flight Levels
High-level SIGWX charts are issued for FL250 to FL630.
#16. CODAR is
CODAR is an upper report from regular aircraft.
#17. WINTEM is
WINTEM provides forecast upper winds and temperatures.
#18. SIGMET is notice of severe weather for
SIGMET is issued for both actual and expected severe weather.
#19. SIGMET is issued for aircraft
SIGMET is primarily for aircraft in flight.
#20. SIGMET is issued by
SIGMETs are issued by AMOs.
#21. SIGMET is valid for
SIGMET is valid for up to 4 hours.
#22. SIGMET is not issued for
SIGMETs are not issued for ordinary rain; they cover severe phenomena.
#23. AIRMET is SIGMET issued by a MWO for the safety of
AIRMETs are for low-level aircraft.
#24. GAMET is an area forecast in abbreviated plain language for
GAMET is for all level flights.
#25. The validity of Airfield warnings is not exceeding
Airfield warnings are valid for up to 3 hours.
#26. Airfield warning is issued for expected wind speed
Airfield warnings are issued when wind speed reaches 30 kt.
#27. Airfield warning is issued for wind direction of 20 kt changes by
Change of wind direction by 45° at 20 kt triggers an airfield warning.
#28. Airfield Warning for gliders, light aircraft and helicopters is issued for expected wind speed
For light aircraft, warnings start at 15 kt wind speed.
#29. Wind Shear Warning is issued for the observed or expected wind shear above runway
Wind shear warnings cover wind shear observed up to 500 m above the runway.
#30. VOLMET is a MET information for aircraft
VOLMET provides MET information for aircraft both in flight and on ground.
#31. VOLMET consists of
VOLMET broadcasts include TAF and METAR information.
#32. In ROBEX the METAR/SPECI of international aerodromes and their alternates is exchanged
ROBEX exchanges international METAR/SPECI outside India.
#33. Global SIGWX Charts are issued ______ times a day
Global SIGWX charts are issued twice daily.
#34. Global SIGWX Charts for Medium-level are issued for Flight Levels
Medium-level SIGWX charts cover FL100 to FL250.
#35. In India who compiles a single National SIGWX chart:
National SIGWX charts are compiled in New Delhi.
#36. The Indian National SIGWX chart is made for Medium Levels between Flight Levels
Medium-level National SIGWX charts are FL150–FL200.
#37. VOLMET Radio Telephony Broadcast made on HF Channel from
VOLMET broadcasts originate from both Mumbai and Kolkata.
#38. The Indian National SIGWX chart is valid for
National SIGWX chart is valid for 18 hours.
#39. In India the National SIGWX chart is issued
Issued twice a day in India.
#40. Individual TS which cover less than 50% area, is termed as
Thunderstorm cells <50% area are ISOL.
#41. If TS cells have no separation between adjacent TS and cover an area more than 75%, it is termed as
Continuous thunderstorms covering >75% area are FRQ.
#42. If TS cells are well separated and cover an area 50-75%, it is termed as
Separated thunderstorms covering 50–75% are OCNL.
#43. The Indian National SIGWX chart is made for High Levels between Flight Levels
High-level charts are FL250–FL630.
#44. Local Forecast covers an area
Local forecast covers 50 NM radius.
#45. Nowcasting forecast is valid for:
Nowcasting is short-term: valid for less than 24 hr.
