Shipping Forecast August 2017 was the 150th anniversary of the shipping forecast. The 31 sea areas covering the waters around the British Isles are as defined by the map shown here: The areas were already roughly as listed above by 1949. In 1955, meteorologists from countries with North Sea coastlines met and recommended that the UK's sea area 'Heligoland' be renamed 'German Bight' to reflect more general usage amongst the nations concerned. They also recommended the divisions of 'Dogger' (with the north-eastern portion to be named 'Fisher') and 'Forties' (with the northern half becoming 'Viking'), and the renaming of 'Iceland' as 'South-east
Shipping Forecast warning the Met Office will indicate when it expects the gale to occur. "Imminent" means that a gale is expected within 6 hours, "expected soon" that a gale is expected within 6 to 12 hours and "later" in more than 12 hours' time. The Shipping Forecast is broadcast on BBC Radio 4 because its longwave signal can be received clearly at sea all around the British Isles regardless of time of day or radio conditions. For the same reason, the Shipping Forecast was broadcast in the BBC National Programme until September 1939, and then after the Second World War on