Task B. Weather Information

Knowledge

What you should understand and be able to explain.

23 elements

• IR.I.B.K1
  Sources of weather data (e.g., National Weather Service, Flight Service) for flight planning purposes.
• IR.I.B.K2
  Acceptable weather products and resources required for preflight planning, current and forecast weather for departure, en route, and arrival phases of flight such as:
• IR.I.B.K2a
  Airport Observations (METAR and SPECI) and Pilot Observations (PIREP)
• IR.I.B.K2b
  Surface Analysis Chart, Ceiling and Visibility Chart (CVA)
• IR.I.B.K2c
  Terminal Aerodrome Forecasts (TAF)
• IR.I.B.K2d
  Graphical Forecasts for Aviation (GFA)
• IR.I.B.K2e
  Wind and Temperature Aloft Forecast (FB)
• IR.I.B.K2f
  Convective Outlook (AC)
• IR.I.B.K2g
  Inflight Aviation Weather Advisories including Airmen's Meteorological Information (AIRMET), Significant Meteorological Information (SIGMET), and Convective SIGMET
• IR.I.B.K3
  Meteorology applicable to the departure, en route, alternate, and destination for flights conducted under Instrument Flight Rules (IFR) to include expected climate and hazardous conditions such as:
• IR.I.B.K3a
  Atmospheric composition and stability
• IR.I.B.K3b
  Wind (e.g., windshear, mountain wave, factors affecting wind, etc.)
• IR.I.B.K3c
  Temperature and heat exchange
• IR.I.B.K3d
  Moisture/precipitation
• IR.I.B.K3e
  Weather system formation, including air masses and fronts
• IR.I.B.K3f
  Clouds
• IR.I.B.K3g
  Turbulence
• IR.I.B.K3h
  Thunderstorms and microbursts
• IR.I.B.K3i
  Icing and freezing level information
• IR.I.B.K3j
  Fog/mist
• IR.I.B.K3k
  Frost
• IR.I.B.K3l
  Obstructions to visibility (e.g., smoke, haze, volcanic ash, etc.)
• IR.I.B.K4
  Flight deck instrument displays of digital weather and aeronautical information.

Risk management

Risks to recognize and decisions to consider.

8 elements

• IR.I.B.R1
  Making the go/no-go and continue/divert decisions, including:
• IR.I.B.R1a
  Circumstances that would make diversion prudent
• IR.I.B.R1b
  Personal weather minimums
• IR.I.B.R1c
  Hazardous weather conditions, including known or forecast icing or turbulence aloft
• IR.I.B.R2
  Use and limitations of:
• IR.I.B.R2a
  Installed onboard weather equipment
• IR.I.B.R2b
  Aviation weather reports and forecasts
• IR.I.B.R2c
  Inflight weather resources