It’s been a pretty smooth flight so far, but out of the haze, you see the emerging outline of a huge towering cumulus. Oh, wonderful—an afternoon thunderstorm in your way.
ATC Sees Weather, too
Key Takeaways:
- ATC radar displays are limited to showing precipitation in muted colors, not other weather phenomena like clouds, turbulence, or vertical extent, and they process fewer intensity levels than pilot-facing systems.
- The freshness of weather data varies significantly: TRACONs use real-time, local radar (updated every ~6 seconds), while Air Route Traffic Control Centers rely on NEXRAD data via the WARP system, which can have a critical lag of 4-5 minutes.
- Automated weather stations (ASOS) can be inaccurate, and while tower controllers can manually verify and edit this data, pilot reports (PIREPs) are crucial for providing real-time, firsthand, and 3D weather validation that enhances safety for all pilots and improves ATC's ability to provide accurate information.
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