Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Multi-centred low with primary centre expected 979 southwest of Iceland on Saturday evening, and secondary centre expected 982 south of Iceland, moving southeast and primary centre expected 997 over Plymouth and secondary centre expected 998 west of Rockall by midday on Sunday, before then moving into the Continent on Monday. High 1025 expected over Scandinavia and southern Norwegian Basin from midday Sunday, remaining mostly stationary during the remainder of the forecast period. A new low expected 991 west of Sole by midday Monday, moving southeast and expected 996 over northeast Fitzroy by midday Tuesday. Strong winds expected in Fair Isle on Saturday evening, easing on Sunday morning. Further strong winds then expected to spread into the North Sea from the east from Sunday afternoon, affecting all of the region apart from Thames, Dover and Wight, before gradually easing on Tuesday. Widespread fog is not expected
Niton
Multi-centred low with primary centre expected 979 southwest of Iceland on Saturday evening, and secondary centre expected 982 south of Iceland, moving southeast and primary centre expected 997 over Plymouth and secondary centre expected 998 west of Rockall by midday on Sunday, before then moving into the Continent on Monday. High 1025 expected over Scandinavia and southern Norwegian Basin from midday Sunday, remaining mostly stationary during the remainder of the forecast period. A new low expected 991 west of Sole by midday Monday, moving southeast and expected 996 over northeast Fitzroy by midday Tuesday. Strong winds expected in the south and east of the region from Saturday evening, easing for all but far southeast Fitzroy by Sunday afternoon. Further strong winds spread in from the west on Monday afternoon, with gales expected in the far west on Tuesday. Widespread fog is not expected
Portpatrick
Multi-centred low with primary centre expected 979 southwest of Iceland on Saturday evening, and secondary centre expected 982 south of Iceland, moving southeast and primary centre expected 997 over Plymouth and secondary centre expected 998 west of Rockall by midday on Sunday, before then moving into the Continent on Monday. High 1025 expected over Scandinavia and southern Norwegian Basin from midday Sunday, remaining mostly stationary during the remainder of the forecast period. A new low expected 991 west of Sole by midday Monday, moving southeast and expected 996 over northeast Fitzroy by midday Tuesday. Strong winds expected in the north and west from Saturday, easing on Sunday morning. Strong winds are then expected to spread in to the northeast on Monday morning, and also in the far southwest from Monday afternoon onwards, with gales possible in Shannon on Tuesday. Winds then easing in the northeast on Tuesday. Widespread fog is not expected
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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