Section 1. General
- TYPES OF BROADCASTS
Weather and flight information must be broadcast/ recorded by one or more of the following categories:
- Transcribed Weather Broadcast (TWEB). (Alaska only.)
- Telephone Information Briefing Service (TIBS). (Alaska only.)
- Hazardous Inflight Weather Advisory Service (HIWAS).
- Automatic Flight Information Service (AFIS). (Alaska only.)
- SPEECH RATE AND PHRASEOLOGY
- Data must be spoken such that:
- The speech rate is not excessive,
- The enunciation is of the highest quality, and;
- Each part of the message is easily understood.
- Standardized procedures and phraseology to be used by FSS personnel and automated equipment are to be conducted in accordance with Chapter 12Phraseology.
- REDUCING RECORDED WEATHER INFORMATION SERVICES
Recorded weather information services in Alaska (TWEB and TIBS) may be reduced during the hours of 1800-0600 local time only. Adjust full broadcast service times to coincide with daylight hours. When a broadcast period is reduced, record the time the broadcast will be resumed, and advise users to contact flight service for weather briefings and other services.
THE TIBS RECORDING IS SUSPENDED. REGULAR RECORDED WEATHER SERVICE WILL BE
RESUMED AT (time) ZULU/ (time) LOCAL. FOR PILOT WEATHER BRIEFINGS AND OTHER SERVICES, CONTACT FLIGHT SERVICE
(phone number or additional telephone instructions, as appropriate).
THE TWEB RECORDING IS SUSPENDED. REGULAR RECORDED WEATHER SERVICE WILL BE RESUMED AT (time) ZULU/ (time) LOCAL. FOR PILOT WEATHER BRIEFING AND OTHER SERVICES CONTACT FLIGHT SERVICE (frequency or phone number, as appropriate)
- CURRENT DATA
An aviation surface report is considered current for 1 hour beyond the standard time of observation (H+00) unless superseded by a special or local observation or by the next hourly report. Do not broadcast obsolete data.
- AUTOMATED BROADCAST
Most broadcasts are automated products that are available 24 hours a day. The products must adhere to the requirements of this chapter. Specialists are responsible for monitoring the product for accuracy, speech rate, and proper enunciation before it is transmitted.