Airborne Weather Systems

Airborne weather systems help pilots detect precipitation, lightning, turbulence risk, and other hazardous conditions along a flight route.

Airborne Weather Systems

Introduction to Airborne Weather Systems

  • Airborne weather systems provide pilots with real-time weather information, an improvement from delays experienced with ground-based services
  • Test your understanding of Airborne Weather Systems by applying your knowledge in the interactive scenario, comparing your performance against the applicable Airman Certification Standards, and concluding with the topic summary to reinforce the key concepts before moving on to the next lesson.
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    Airborne Weather Systems

    Airborne Weather Systems Key Highlights

    • Airborne weather systems provide pilots with real-time or near-real-time weather information to improve situational awareness and flight safety.
    • Common airborne weather systems include onboard weather radar, lightning detection systems, datalink weather services, and satellite weather displays.
    • Weather radar systems detect precipitation intensity and storm structure by transmitting and receiving radio wave reflections.
    • Pilots use airborne weather systems to identify thunderstorms, turbulence, precipitation, icing conditions, and hazardous weather areas.
    • Datalink weather systems provide graphical weather products such as NEXRAD, METARs, TAFs, SIGMETs, and NOTAM information.
    • Airborne weather displays may contain transmission delays, making real-time thunderstorm avoidance and tactical decisions especially important.
    • Weather radar tilt, gain settings, and interpretation techniques significantly affect radar effectiveness and hazard identification.
    • Improper interpretation of airborne weather information can lead to hazardous weather penetration and increased operational risk.
    • Modern avionics systems integrate weather displays with navigation and traffic information to improve pilot situational awareness.
    • Understanding airborne weather systems improves weather decision-making, operational planning, and overall flight safety.
    Airborne Weather Systems

    Weather Radar Systems

    • Weather radar systems send out radio waves that are reflected by weather or other surfaces (i.e., the ground)
    Airborne Weather Systems

    Weather Radar Systems Performance

    • Weather radars are as effective as their antenna, among other characteristics
    • Smaller antennas may have a range of only 40 nautical miles, whereas larger aircraft systems may detect returns at greater distances.
    • Attenuation may hide dense weather
    Airborne Weather Systems

    Weather Radar Best Practices

    • Use the antenna tilt control to scan above and below the flight path and compare weather echoes with ground returns
    • Use all available weather information for go/no-go decisions and use airborne radar to avoid hazardous weather, not justify penetrating it
      • Pilots new to airborne weather radar or lightning-detection equipment should obtain instruction in its operation, interpretation, and limitations before basing tactical weather decisions on it.
    • Remember that radar displays precipitation where the antenna is aimed, which may not coincide with the aircraft's flight path
    • Treat a radar shadow or missing ground returns behind a strong echo as possible attenuation and avoid the area
    Airborne Weather Systems

    Airborne Weather Systems Interactive Scenario

    Interactive Scenario

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    Airborne Weather Systems

    Airborne Weather Systems Conclusion

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    Airborne Weather Systems

    Airborne Weather Systems References