Coast and sea

Extended outlook

Issued at: .

For the period to .

Extended outlook map

Cullercoats

On Wednesday evening, a ridge extends across the UK aligned from northeast to southwest. This ridge persists throughout the period as a result of a blocking high over Europe, resulting in Atlantic frontal systems stalling as they approach from the west and maintaining fairly settled conditions. Towards the end of the period, high pressure out to the Atlantic moves east and extends a new ridge across into the far west of North Sea areas, with a col becoming established near Ireland. Meanwhile, a low develops near southwest approaches, deepening to 994 and becoming centred southwest of Fitzroy by the end of the period. Over the course of Thursday and Friday, isolated near gales in Fair Isle and Viking. Overnight into Saturday, these near gales cease as the col becomes established to the west. Otherwise, no other strong winds expected during the period.

Niton

On Wednesday evening, a ridge extends across the UK aligned from northeast to southwest. This ridge persists throughout the period as a result of a blocking high over Europe, resulting in Atlantic frontal systems stalling as they approach from the west and maintaining fairly settled conditions. Towards the end of the period, high pressure out to the Atlantic moves east and extends a new ridge across into the far west of North Sea areas, with a col becoming established near Ireland. Meanwhile, a low develops near southwest approaches, deepening to 994 and becoming centred southwest of Fitzroy by the end of the period. No strong winds are forecast for the whole of the Niton area until Saturday. For a time on Saturday, isolated near gales in southwest Fitzroy in proximity to the low in the southwest approaches. These may cease depending on the track of the low, which may become shifted further west over the course of Saturday.

Portpatrick

On Wednesday evening, a ridge extends across the UK aligned from northeast to southwest. This ridge persists throughout the period as a result of a blocking high over Europe, resulting in Atlantic frontal systems stalling as they approach from the west and maintaining fairly settled conditions. Towards the end of the period, high pressure out to the Atlantic moves east and extends a new ridge across into the far west of North Sea areas, with a col becoming established near Ireland. Meanwhile, a low develops near southwest approaches, deepening to 994 and becoming centred southwest of Fitzroy by the end of the period. Through Wednesday night and Thursday, isolated near gales in Fair Isle, Faeroes and Southeast Iceland. These gradually spread eastward through Friday as the Atlantic ridge builds to the west, with strong winds ceasing by Saturday morning. No other strong winds are forecast for the Portpatrick area during the forecast period.

The extended outlook information

The extended outlooks are issued once a day, at 2300 GMT and cover the next 3 to 5 days.

For the extended outlooks the waters surrounding the British Isles are divided into three areas: Cullercoats, Portpatrick and Niton. These three areas reflect the coverage areas of the UK's Navtex transmitters, which overlap in some areas.

The extended outlook forecast contains details of the likelihood of gales or storms, a general synopsis and a general forecast for the area of coverage of each Navtex transmitter.

Marine forecasts disclaimer

In the UK, the Maritime & Coastguard Agency (MCA) is responsible for the provision of Maritime Safety Information (MSI) to ships at sea, which includes the broadcast of warnings and forecasts. The Met Office initiates warnings and prepares routine forecasts for dissemination on behalf of the MCA.

Caution: The internet is not part of the Maritime Safety Information system and should never be relied upon as the only means to obtain the latest forecast and warning information. Access to the service may be interrupted or delayed from time to time, updates may also be delayed.

Please refer to GMDSS services, INMARSAT SafetyNET or international NAVTEX for the latest information. When using these web pages, always check that the page on your screen is not from your cache. Use the Refresh or Reload button if in any doubt.