Weather Multitasking

For the moment, well begin with a nickel tour of both the ATC and the national aviation weather systems. Naturally, theres some overlap between them. The FAA air traffic control system is one big ol network. The chain of command begins with the ATC System Command Center in Virginia, which provides oversight and coordination between the biggest ATC facilities, the Air Route Traffic Control Centers.

Editorial Staff

Wednesday, January 13, 2016 at 12:00 AM ET

Verified

Key Takeaways:

Aviation weather reporting relies on a multi-layered system, from national centers (AWC) down to local airport control towers, integrating automated systems like ASOS for METARs and SPECIs.
Runway Visual Range (RVR) is a critical, frequently updated metric provided by controllers, essential for determining the legality and safety of instrument approaches, particularly in Instrument Meteorological Conditions (IMC).
Human air traffic controllers (especially LAWRS-certified) and pilot reports (PIREPs) are indispensable for verifying, supplementing, and correcting automated weather data, ensuring pilots receive the most accurate and timely information for critical flight decisions.

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The morning fog rolled across the airport like a vast cotton blanket, smothering runways, parked airplanes and the airport terminal. Within minutes, it pushed up against the tower windows, trying to seal us inside like something out of Stephen King’s The Mist. We quickly flipped on the airport beacon and cut a new ATIS reflecting the obvious: The airport had gone IMC.

With our VFR traffic stuck on the ground or going elsewhere, the tower frequencies fell strangely silent. Soon, however, we started getting other calls. An inbound Delta airliner reached out from 100 miles away. “Hey, Tower. How’s it lookin’?” The landline phone rang. “This is American Airlines dispatch. We’ve got two flights inbound right now. What’s the latest?” A Gulfstream IV on the GA ramp reached out to Ground. “We’re just firing up. Any improvement?”