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Extended outlook

Issued at:

For the period to

Cullercoats
On Thursday evening a large, complex area of low pressure centred near northern England 998 with a broad trough extending to the Norwegian Sea. This low and trough will clear southeast across the near Continent during Friday afternoon, with a ridge of high pressure following across the UK. Overnight, pressure will build across southern areas of the UK with an anticyclone expected near Wight 1033 by midday on Saturday. A deep low is expected Iceland 970 by this time. The anticyclone is expected to move across Germany overnight and the low will reach the Norwegian Sea 979 by midday Sunday and probably become slow moving. No hazards are expected during Thursday night and through Friday. On Saturday southerly gales are likely across Fair Isle by late morning, before extending across Viking and South Utsire by evening. Further gales look likely across these far northern waters during Sunday with possible severe gales for a time
Niton
On Thursday evening an anticyclone centred near Azores 1040, with a low expected near northern England 998. Overnight, pressure will build across southern areas of the UK with an anticyclone expected near Wight 1033 by midday on Saturday. This low will clear southeast across the near Continent during Friday afternoon, with a ridge of high pressure following across the UK. Overnight, pressure will build across southern areas of the UK with an anticyclone expected near Wight 1033 by midday on Saturday. The Azores anticyclone is expected just west of Trafalgar 1041 by this time. During Sunday high pressure will cover much of Niton. Northwesterly gales are possible at first across far western waters of Fitzroy, Sole and Shannon but are expected to decrease to strong by the early hours of Friday morning. No further hazards are expected for the remainder of Friday and through Saturday. On Sunday there is currently a risk of southwesterly gales across Shannon
Portpatrick
Thursday evening a ridge of high pressure expected to extend north across Iceland with a complex area of low pressure northern England 998. This low moves away southeast with the ridge following and by midday Friday is expected to lie Fastnet to Faeroes. As the ridge recedes away towards the North Sea a deep Atlantic low will move northeast to be centred near the southwest tip of Iceland 970 by midday Saturday. Fronts expected to cross most waters of Portpatrick later on Friday and for a time on Saturday. By midday Sunday the low will move to Norwegian Sea 979 and probably become slow moving. On Thursday evening northwesterly gales possible in the south at first decreasing strong overnight. Gales probably develop across Bailey Friday afternoon and extend further north. On Saturday and Sunday gales or severe gales likely across most northern and some central waters of Portpatrick, with possible storms across Southeast Iceland for a time later on Saturday

Marine weather extended outlook for the next 3 to 5 days

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.

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