Editing Shipping Forecast (section)

===Longwave===
The Shipping Forecast has been broadcast on BBC [[longwave]] radio services so the signal can be received clearly at sea all around the [[British Isles]], regardless of time of day or radio conditions. The forecast was broadcast on the [[BBC National Programme]] until September 1939, and then after the Second World War on the [[BBC Light Programme]] (later [[BBC Radio 2]]) until November 1978. When BBC Radio 4 took over the longwave frequency from Radio 2 on 23 November 1978, the Shipping Forecast was moved to Radio 4 to keep it broadcasting on longwave.

As part of the BBC's plans to switch off BBC Radio 4 longwave transmissions, it reduced daily broadcasts of the Shipping Forecast to the FM simulcast schedule of twice on weekdays and three times on weekends in April 2024.<ref>{{Cite web |title=BBC Radio 4 begins information campaign to transition listeners from Long Wave |url=https://www.bbc.co.uk/mediacentre/articles/2023/bbc-radio-4-long-wave-transition|access-date=2023-06-14 |website=www.bbc.co.uk |language=en}}</ref>