Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low 998 expected over the Norwegian Basin on Friday evening, will slowly move northeast into Scandinavia over the weekend as it continues to deepen. Azores High 1034 stretches a ridge into Fitzroy on Friday evening, before sinking south on Saturday. New low 999 develops west of Shannon by midday Saturday, quickly moving east as it deepens and expected 982 over Irish Sea by midday on Sunday, and 981 over Thames by midday Monday. Strong winds expected in the northern North Sea from Friday evening onwards will translate southwards during Saturday, allowing strong winds to ease in the north and spread into the south. Gales possible in German Bight and Wight for a time on Saturday evening, and again in Wight on Sunday evening. Strong winds then spread north again on Monday covering all sea areas apart from the far south for the remainder of the forecast period
Niton
Low 998 expected over the Norwegian Basin on Friday evening, will slowly move northeast into Scandinavia over the weekend as it continues to deepen. Azores High 1034 stretches a ridge into Fitzroy on Friday evening, before sinking south on Saturday. New low 999 develops west of Shannon by midday Saturday, quickly moving east as it deepens and expected 982 over Irish Sea by midday on Sunday, and 981 over Thames by midday Monday. Strong winds expected in Fitzroy, Sole, Lundy, Fastnet and Irish Sea from Friday evening will spread southwards on Saturday, with gales possible for a time in Fitzroy Saturday afternoon, as well as in Wight and Shannon on Saturday evening. Gales and possibly severe gales at times, then spread eastwards from the early hours of Sunday morning, affecting all sea areas apart from Thames, Dover and Irish Sea, before gales then ease later Sunday night. Strong winds continue for most into Monday before easing during the afternoon
Portpatrick
Low 998 expected over the Norwegian Basin on Friday evening, will slowly move northeast into Scandinavia over the weekend as it continues to deepen. Azores High 1034 stretches a ridge into Fitzroy on Friday evening, before sinking south on Saturday. New low 999 develops west of Shannon by midday Saturday, quickly moving east as it deepens and expected 982 over Irish Sea by midday on Sunday, and 981 over Thames by midday Monday. Strong winds expected in Lundy, Fastnet, Irish Sea, Shannon, Malin, Hebrides and Fair Isle from Friday evening will ease briefly during Saturday before further strong winds, gales and possibly severe gales at times spread eastwards into the south of the region on Saturday evening. Gales and severe gales then ease on Sunday night, with strong winds continuing in the south of the region until Monday afternoon
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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