Coast and sea

Extended outlook

Issued at: .

For the period to .

Extended outlook map

Cullercoats

Tuesday evening a broad area of high pressure, 1030, stretches from the southern North Sea across the English Channel towards the Azores while a deep area of low pressure, 958, lies just east of Iceland and brings a swathe of gale to severe gale force winds across Fair Isle. The low tracks away across the Norwegian Sea early on Wednesday allowing winds to ease somewhat as a trough sinks southeast across the North Sea, this remaining a focus for strong winds until later in the day. The high declines westwards and becomes centred north of the Azores by the end of Wednesday but maintains influence across the English Channel. A new low tracks east across Faeroes early on Thursday to bring renewed and perhaps more widespread gale to severe gale force winds across northern Cullercoats, before tracking away across Scandinavia into Friday. Strong to near gale force winds are currently forecast to follow across the southern half of Cullercoats

Niton

Tuesday evening high pressure, 1030, stretches from the southern North Sea across the English Channel towards the Azores. Low pressure across Iberia extends a trough northwest towards Cape Finisterre leading to periods of near gale force winds across southern Fitzroy through the period. Meanwhile on Tuesday night, a deep low east of Iceland pushes a trough southeast across northern Niton, this acting as a focus for strong winds before it weakens through Wednesday as it interacts with the ridge. The high declines westwards and becomes centred north of the Azores by the end of Wednesday but maintains influence across the English Channel. A new and developing low tracks east across Faeroes early on Thursday bringing renewed strong winds to northern Niton sea areas as it tracks east across Scandinavia later in the day. Friday strong, perhaps near gale force, winds are currently expected across Thames, Dover and Wight

Portpatrick

Tuesday evening high pressure, 1030, stretches from the southern North Sea towards the Azores while a deep low pressure, 958, lies just east of Iceland and brings a swathe of gale to severe gale force winds across northern Portpatrick, and storm force winds to Southeast Iceland. The low tracks across the Norwegian Sea early on Wednesday allowing winds to ease somewhat as a trough sinks southeast across the British Isles, this remaining a focus for strong winds until later in the day while strong to near gale force winds persist more widely to the north. The high becomes centred north of the Azores from Wednesday and amplifies a ridge towards the Irish Sea. A developing low tracks east across Faeroes early on Thursday bringing renewed gales, perhaps isolated severe gales, to northern Portpatrick sea areas as it tracks east across Scandinavia later in the day. Friday strong to near gale force winds are currently expected across much of southern Portpatrick

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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