Weather Information

The applicant demonstrates understanding of:

• PA.I.C.K1Sources of weather data (e.g., National Weather Service, Flight Service) for flight planning purposes.
• PA.I.C.K2Acceptable weather products and resources required for preflight planning, current and forecast weather for departure, en route, and arrival phases of flight such as:
• PA.I.C.K2aa. Airport Observations (METAR and SPECI) and Pilot Observations (PIREP)
• PA.I.C.K2bb. Surface Analysis Chart, Ceiling and Visibility Chart (CVA)
• PA.I.C.K2cc. Terminal Aerodrome Forecasts (TAF)
• PA.I.C.K2dd. Graphical Forecasts for Aviation (GFA)
• PA.I.C.K2ee. Wind and Temperature Aloft Forecast (FB)
• PA.I.C.K2ff. Convective Outlook (AC)
• PA.I.C.K2gg. Inflight Aviation Weather Advisories including Airmen's Meteorological Information (AIRMET), Significant Meteorological Information (SIGMET), and Convective SIGMET
• PA.I.C.K3Meteorology applicable to the departure, en route, alternate, and destination under visual flight rules (VFR) in Visual Meteorological Conditions (VMC), including expected climate and hazardous conditions such as:
• PA.I.C.K3aa. Atmospheric composition and stability
• PA.I.C.K3bb. Wind (e.g., windshear, mountain wave, factors affecting wind, etc.)
• PA.I.C.K3cc. Temperature and heat exchange
• PA.I.C.K3dd. Moisture/precipitation
• PA.I.C.K3ee. Weather system formation, including air masses and fronts
• PA.I.C.K3ff. Clouds
• PA.I.C.K3gg. Turbulence
• PA.I.C.K3hh. Thunderstorms and microbursts
• PA.I.C.K3ii. Icing and freezing level information
• PA.I.C.K3jj. Fog/mist
• PA.I.C.K3kk. Frost
• PA.I.C.K3ll. Obstructions to visibility (e.g., smoke, haze, volcanic ash, etc.)
• PA.I.C.K4Flight deck instrument displays of digital weather and aeronautical information.

The applicant is able to identify, assess, and mitigate risk associated with:

• PA.I.C.R1Making the go/no-go and continue/divert decisions, including:
• PA.I.C.R1aa. Circumstances that would make diversion prudent
• PA.I.C.R1bb. Personal weather minimums
• PA.I.C.R1cc. Hazardous weather conditions, including known or forecast icing or turbulence aloft
• PA.I.C.R2Use and limitations of:
• PA.I.C.R2aa. Installed onboard weather equipment
• PA.I.C.R2bb. Aviation weather reports and forecasts
• PA.I.C.R2cc. Inflight weather resources

The applicant exhibits the skill to:

• PA.I.C.S1Use available aviation weather resources to obtain an adequate weather briefing.
• PA.I.C.S2Analyze the implications of at least three of the conditions listed in K3a through K3l, using actual weather or weather conditions provided by the evaluator.
• PA.I.C.S3Correlate weather information to make a go/no-go decision.