Definition 1 of 2
Plain English Meaning
The official agency that watches the weather, predicts what it will do, and publishes that information for pilots and the public to use.
Full Definition
A government organization, in the United States the National Weather Service (NWS), that observes, forecasts, and distributes weather information for public, commercial, and aviation use. For aviation, it produces the reports, forecasts, and advisories pilots rely on for flight planning and in-flight decisions, including METARs, TAFs, area forecasts, AIRMETs, SIGMETs, and winds aloft.
Context Anchor
Pilots encounter this term when checking weather before a flight, reading aviation weather products, or listening to weather information during a flight.