Definition
A continuously recorded aviation weather and route forecast broadcast over selected low-frequency (L/MF) and VOR navigation facilities, providing pilots with weather conditions, forecasts, winds aloft, and notices to airmen along specific route segments. TWEB service has been largely discontinued in the contiguous United States but may still be referenced in older training materials and in some Alaskan operations.
Plain English
A recorded weather and route briefing that pilots could listen to through certain navigation radios in the cockpit, giving them weather and flight information for the route they were flying.
Context Anchor
Pilots may encounter TWEB when reviewing FAA weather resources or when operating in areas where recorded weather broadcasts are still provided, especially in remote regions.
Derivation
‘Transcribed’ here means pre-recorded — the broadcast is a recording, not a live person speaking. ‘Weather Broadcast’ is straightforward. The name simply describes what it is: a recorded weather broadcast you tune in to.
Why Pilots Care
Pilots studying from current FAA materials should know TWEB existed and what it did, but recognize that most TWEB broadcasts have been discontinued. Modern equivalents include Flight Service briefings, HIWAS (also being phased out), and in-cockpit datalink weather.
Intuition Check
Do not read TWEB as a website or web-based product. Here, “WEB” is part of the abbreviation for a recorded weather broadcast sent over aviation radio.
Example Sentence 1
While flying through a remote area of Alaska, the pilot tuned the VOR receiver to listen to the TWEB for current weather along the route.
Example Sentence 2
Although TWEB broadcasts have been discontinued in many areas, older training materials still reference them as a weather resource.