Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low expected 997 over South East Iceland on Friday evening before losing its identity in situ on Saturday morning. Second low also expected 999 Fastnet on Friday evening, then expected 1009 Irish Sea by midday on Saturday before losing its identity over Lundy on Sunday. Deep Atlantic low expected 948 off Greenland at midnight on Saturday, generally slow moving and expected 967 east of Greenland by midnight on Sunday and 973 in similar location by midday on Monday, with secondary centre 987 developing west of Rockall. No gales are expected in this region during the forecast period, however strong winds are likely to affect the northern North Sea from Sunday evening onwards, with near gales affecting Viking, North Utsire and Fair Isle on Monday. Widespread fog is possible at times in the southern North Sea from Saturday onwards, and eastern Channel from Sunday onwards
Niton
Low expected 997 over South East Iceland on Friday evening before losing its identity in situ on Saturday morning. Second low also expected 999 Fastnet on Friday evening, then expected 1009 Irish Sea by midday on Saturday before losing its identity over Lundy on Sunday. Deep Atlantic low expected 948 off Greenland at midnight on Saturday, generally slow moving and expected 967 east of Greenland by midnight on Sunday and 973 in similar location by midday on Monday, with secondary centre 987 developing west of Rockall. Strong winds are expected to spread into the northwest on Sunday morning, with near gales in Fitzroy, Sole, Lundy, Fastnet, Irish Sea and gales in Shannon at times. These generally all easing for a time on Sunday night, but further strong winds arrive from the west on Monday. Widespread fog is possible at times in Thames from Saturday onwards, and eastern Channel from Sunday onwards
Portpatrick
Low expected 997 over South East Iceland on Friday evening before losing its identity in situ on Saturday morning. Second low also expected 999 Fastnet on Friday evening, then expected 1009 Irish Sea by midday on Saturday before losing its identity over Lundy on Sunday. Deep Atlantic low expected 948 off Greenland at midnight on Saturday, generally slow moving and expected 967 east of Greenland by midnight on Sunday and 973 in similar location by midday on Monday, with secondary centre 987 developing west of Rockall. Strong winds are expected to spread in from the west during the early hours of Sunday morning, with gales affecting Shannon, Rockall, Malin, Hebrides, Bailey and South East Iceland at times, before gales ease for all on Sunday night and strong winds ease in the south. Further strong winds then arrive from the southwest on Monday. 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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