Coast and sea

Extended outlook

Issued at: .

For the period to .

Extended outlook map

Cullercoats

On Monday evening low 986 expected Gulf of Bothnia, with a further shallow low to the west of the British Isles, and with high 1030 to the southwest extending a ridge across the UK. During Tuesday the ridge expected to decline southwards as a low transfers east into central parts of the British Isles. This then likely to move away east into the Baltic on Wednesday, but with a further low forecast to transfer east into sea area Shannon by midnight Thursday. Some uncertainties thereafter, but current indications are for this low to move slowly east into the British Isles during Thursday, with the ridge to the south declining further. Gales in the northeastern North Sea on Monday evening will moderate overnight. Currently no further gales or significantly strong winds are then expected through the rest of this forecast period

Niton

On Monday evening low 986 expected Gulf of Bothnia, with a further shallow low to the west of the British Isles, and with high 1030 to the southwest extending a ridge across the UK. During Tuesday the ridge expected to decline southwards as a low transfers east into central parts of the British Isles. This then likely to move away east into the Baltic on Wednesday, but with a further low forecast to transfer east into sea area Shannon by midnight Thursday. Some uncertainties thereafter, but current indications are for this low to move slowly east into the British Isles during Thursday, with the ridge to the south declining further. Occasional near gales in south Fitzroy on Monday evening will continue overnight before moderating through Tuesday. Currently no further significantly strong winds are expected through the rest of this forecast period

Portpatrick

On Monday evening low 986 is expected to be centred over the Gulf of Bothnia, with a further shallow low to the west of the British Isles, and with a high 1030 to the southwest extending a ridge across the UK. During Tuesday the ridge expected to decline southwards as a low transfers east into central parts of the British Isles. This then likely to move away east into the Baltic on Wednesday, but with a further low forecast to transfer east into sea area Shannon by midnight Thursday. Some uncertainties thereafter, but current indications are for this low to move slowly east into the British Isles during Thursday, with the ridge to the south declining further. Winds will be strong at times in the south of the Portpatrick area during this forecast period, but currently no gales are expected

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.