Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low 978 65N 029W extends a trough across the Norwegian Basin and into eastern parts of the North Sea. This trough soon dissipates as the low continues northeast towards Svalbard. Low 989 51N 028W deepens as it moves north towards Iceland Friday. This low then remains slow moving to the south of Iceland through until at least the end of Sunday. Low 977 63N 037W Thursday evening moves southeast Friday before filling Friday evening. High 1035 southwest of the Azores extends a very brief ridge northeast, towards the UK, early Friday before amalgamating with high 1039 44N 056W as it moves towards the Azores late Friday. This high sinks slowly south through the weekend. Low 1015 38N 057W midday Friday deepens while passing east to the north of the Azores Saturday, continues east as a filling feature late Sunday. Gales, locally severe, in the northeast at first with further gales spreading east across the north Friday into early Sunday
Niton
Low 978 65N 029W extends a trough across the Norwegian Basin and into eastern parts of the North Sea. This trough soon dissipates as the low continues northeast towards Svalbard. Low 989 51N 028W deepens as it moves north towards Iceland Friday. This low then remains slow moving to the south of Iceland through until at least the end of Sunday. Low 977 63N 037W Thursday evening moves southeast Friday before filling Friday evening. High 1035 southwest of the Azores extends a very brief ridge northeast, towards the UK, early Friday before amalgamating with high 1039 44N 056W as it moves towards the Azores late Friday. This high sinks slowly south through the weekend. Low 1015 38N 057W midday Friday deepens while passing east to the north of the Azores Saturday, continues east as a filling feature late Sunday. Gales reach the northwest Friday and again briefly Saturday
Portpatrick
Low 978 65N 029W extends a trough across the Norwegian Basin and into eastern parts of the North Sea. This trough soon dissipates as the low continues northeast towards Svalbard. Low 989 51N 028W deepens as it moves north towards Iceland Friday. This low then remains slow moving to the south of Iceland through until at least the end of Sunday. Low 977 63N 037W Thursday evening moves southeast Friday before filling Friday evening. High 1035 southwest of the Azores extends a very brief ridge northeast, towards the UK, early Friday before amalgamating with high 1039 44N 056W as it moves towards the Azores late Friday. This high sinks slowly south through the weekend. Low 1015 38N 057W midday Friday deepens while passing east to the north of the Azores Saturday, continues east as a filling feature late Sunday. Gales, some severe, spread northeast to all except the southeast at times during Friday and Saturday
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.
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