Coast and sea

Extended outlook

Issued at: .

For the period to .

Extended outlook map

Cullercoats

High 1020 over Cromarty and Forth by late Wednesday will drift east and decline by early Thursday. High pressure ridge stretches east across Biscay, Fitzroy, Sole and Shannon throughout the period. Low 975 will track east to be over SE Iceland by midday on Thursday and extend across most areas, tracking east to the Norwegian Basin by midday on Friday and tracking east to Norway and Sweden by late on Saturday. Gales expected to spread in from the west for Viking, North Utsire, Forties, Cromarty and Fair Isle from early on Thursday, moderating for a period on early Saturday. Gales expected in South Utsire and Fisher by late on Saturday

Niton

High 1020 over Cromarty and Forth by late Wednesday will drift east and decline by early Thursday. High pressure ridge stretches east across Biscay, Fitzroy, Sole and Shannon throughout the period. Low 975 will track east to be over SE Iceland by midday on Thursday and extend across most areas, tracking east to the Norwegian Basin by midday on Friday and tracking east to Norway and Sweden by late on Saturday. Gales expected for a period on Saturday in Portland, Portsmouth, Sole, Lundy and Fastnet. Gales expected to spread from the west for Irish Sea and Shannon from early on Thursday, moderating in Irish Sea by early on Friday but returning for a period on Saturday, moderating both areas by late Saturday. Gales expected in Fitzroy from late Friday

Portpatrick

High 1020 over Cromarty and Forth by late Wednesday will drift east and decline by early Thursday. High pressure ridge stretches east across Biscay, Fitzroy, Sole and Shannon throughout the period. Low 975 will track east to be over SE Iceland by midday Thursday and extend across most areas, tracking east to the Norwegian Basin by midday Friday and tracking east to Norway and Sweden by late Saturday. Gales expected for a period on Saturday in Lundy and Fastnet. Gales expected to spread from the west for Irish Sea and Shannon from early on Thursday, moderating in Irish Sea by early on Friday but returning for a period on Saturday, moderating both areas by late Saturday. Gales expected to spread in from the west for Fair Isle from early on Thursday, moderating for a period on early Saturday. Gales expected in Rockall, Malin, Hebrides, Bailey, Faeroes and SE Iceland from late on Wednesday, moderating by late on 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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