With the exception of the emergency frequency, controllers must broadcast a hazardous inflight weather advisory on all frequencies, _____

• A. when making the ATIS
• B. after forwarding the information
• C. if it impacts operations within 50NM of the area of jurisdiction
• D. upon receipt of hazardous weather information

Answer: (D)

The main idea is to get hazardous inflight weather information out to pilots as quickly and as broadly as possible. When you receive hazardous weather information, you should broadcast it on all frequencies you control so every pilot listening on any frequency in the area hears the advisory. This rapid, wide dissemination helps pilots make timely decisions and reduces the chance of weather-related surprises.

The exception about the emergency frequency exists because that channel is reserved for life-threatening communications and must not be cluttered with routine advisories. Other frequencies still carry the warning so non-emergency traffic is informed, but you keep the emergency channel clear for urgent needs.

Broadcasting only on one frequency, or only after forwarding to another facility, or limiting transmission to a 50 NM radius would slow or restrict dissemination and defeat the purpose of broad, immediate awareness.