Coast and sea

Extended outlook

Issued at: .

For the period to .

Extended outlook map

Cullercoats

On Tuesday evening, a high pressure cell is expected to be centred 1033, over the Irish Sea. Overnight the high is forecast to drift slowly east to be located 1037, over Forties at midday Wednesday. During Wednesday night and through Thursday the high is expected to continue to move slowly eastwards across the North Sea, as a low pressure system approaches the west of Iceland. On Friday, high pressure is likely to remain across Scandinavia whilst another low moves northeastwards past the west coast of Iceland. On Tuesday night, strong winds across the far northwest of Cullercoats are expected to ease. No further hazardous winds are forecast to affect the Cullercoats region until Thursday night, when strong to near gale force winds are likely to spread into Fair Isle. Strong winds are likely to continue in Fair Isle through Friday

Niton

On Tuesday evening, a high pressure cell is expected to be centred 1033, over the Irish Sea. Overnight, the high is forecast to drift slowly east to be located 1037, over Forties midday Wednesday. During Wednesday night and through Thursday the high is expected to continue to move slowly eastwards across the North Sea as a low pressure system approaches the west of Iceland. Also, during this period a low is likely to form across Algeria. On Friday, the low across north Africa is forecast transit eastwards towards Tunisia as another low pressure system tracks northeastwards past west Iceland. Through Tuesday and Wednesday, strong to near gale force winds are expected across all but the far northeast and southwest of Niton. On Thursday strong to near gale force winds are likely to spread to the southwest of Niton whilst gales develop in the far northwest. Winds are forecast to ease on Friday, but remain strong in Shannon and south Fitzroy

Portpatrick

On Tuesday evening a high pressure cell is expected to be centred 1033, over the Irish Sea. Overnight, the high is forecast to drift slowly east to be located 1037, over Forties at midday Wednesday. During Wednesday night and through Thursday the high is expected to continue to move slowly eastwards across the North Sea as a low pressure system approaches the west of Iceland. On Friday, high pressure is likely to remain across Scandinavia whilst another low moves northeastwards past the west coast of Iceland. During Tuesday and Wednesday, strong to near gale force winds are expected to affect the far southwest of Portpatrick. During Thursday, strong to near gale force winds are forecast to spread northeastwards across the region as gales move into the west of Portpatrick. Winds should ease slightly through Friday, but are likely to remain strong to near gale force in most sea areas

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.

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.