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
  • Reinforce your understanding of Airborne Weather Systems by completing the interactive scenario, comparing your performance with the applicable Airman Certification Standards, and reviewing the topic summary before moving on.

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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 (Aviation Routine Weather Reports), TAFs (Terminal Aerodrome Forecasts), SIGMETs (Significant Meteorological Information), and NOTAM (Notice to Airmen) 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

Scenario illustration for Airborne Weather Systems.

The Datalink Gap Near a Convective Line

Use radar, lightning, and datalink weather without mistaking strategic displays for tactical thunderstorm clearance. Abbreviations used in this scenario: Air Traffic Control (ATC).

4 DecisionsScenario-Based TrainingAirborne Weather SystemsConsequence-BasedRetry and Debrief
Decision 1
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Scenario Complete

Airborne Weather Systems

Airborne Weather Systems Conclusion

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Airborne Weather Systems

Airborne Weather Systems References