Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low southern Sweden 1002 at 1800 on Wednesday moving away east and filling by midday on Thursday. New low expected FitzRoy 989 by midday on Thursday then expected Forties 979 by midday on Friday, this moving away north by midday on Saturday. New low expected Shannon 993 by midday on Friday, then expected Biscay 1008 by midday on Saturday. Gales expected on Wednesday evening in Fair isle, but are expected to soon die out. Gales expected to develop in Viking and North Utsire by midday on Thursday and in South Utsire, Forties, Dogger, German Bight, Humber, Thames, Dover and Wight by the end of the day. The gales are expected to die out in Thames, Dover and Wight by midday on Friday, but gales are expected to develop in Cromarty, Forth, Tyne and Fair Isle by this time. The gales are expected to die out from the south in all areas by midday on Saturday. Widespread fog not expected
Niton
Low southern Sweden 1002 at 1800 on Wednesday moving away east and filling by midday on Thursday. New low expected FitzRoy 989 by midday on Thursday then expected Forties 979 by midday on Friday, this moving away north by midday on Saturday. New low expected Shannon 993 by midday on Friday, then expected Biscay 1008 by midday on Saturday. Gales are expected to develop in Portland, Plymouth, Biscay and FitzRoy by midday on Thursday then in Thames, Dover, Wight, Sole and Lundy by the end of the day. These gales are expected to die out in Thames, Dover, Wight, Portland, Plymouth, Biscay and Lundy by midday on Friday, but gales are expected to develop in Shannon by this time. The gales are expected to ease in Shannon by midday on Saturday then in all other areas later in the day. Gales are expected to develop in Sole and Shannon later Saturday. Widespread fog is not expected
Portpatrick
Low southern Sweden 1002 at 1800 on Wednesday moving away east and filling by midday on Thursday. New low expected FitzRoy 989 by midday on Thursday then expected Forties 979 by midday on Friday, this moving away north by midday on Saturday. New low expected Shannon 993 by midday on Friday, then expected Biscay 1008 by midday on Saturday. Gales expected in Hebrides, Fair Isle and Faeroes Wednesday evening. These are expected to die out by midnight, but gales are expected in Southeast Iceland by this time. These gales are expected to die out by midday on Thursday, but gales are expected to develop in Lundy later on Thursday before dying out by midday on Friday. Gales are expected to develop in Shannon and Fair Isle by midday on Friday, but are expected to die out by midday on Saturday. Gales are expected to develop in Shannon, Rockall, Bailey, Faeroes and Southeast Iceland later Saturday. Widespread fog 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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