Coast and sea
Issued at: .
For the period to .
Extended outlook map
Cullercoats
A ridge of high pressure over the southern North Sea on Tuesday evening will drift east with new high expected southern Baltic 1033 by midday on Wednesday before drifting away northeast. Meanwhile, developing low will move northeast, expected Iceland 978 by Wednesday evening with associated troughs moving east over UK and surrounding waters. This low will move away north on Thursday with new high expected Biscay 1031 on Thursday evening, then France 1026 on Friday. New developing low moving northeast, expected Southeast Iceland 968 by later on Friday. Strong winds expected on Tuesday evening and Wednesday in Viking, North Utsire, South Utsire, Forties, Cromarty, Forth, Tyne, Dogger and Fair Isle with gales expected later in Viking, the Utsires and Fair Isle. These winds will decrease during Thursday but strong winds expected in the southern North Sea and English Channel later in the day. Gales expected in Fair Isle on Friday with strong winds in all other areas at times
Niton
A ridge of high pressure over the southern North Sea on Tuesday evening will drift east with new high expected southern Baltic 1033 by midday on Wednesday before drifting away northeast. Meanwhile, developing low will move northeast, expected Iceland 978 by Wednesday evening with associated troughs moving east over UK and surrounding waters. This low will move away north on Thursday with new high expected Biscay 1031 on Thursday evening, then France 1026 on Friday. New developing low moving northeast, expected Southeast Iceland 968 by later on Friday. Strong winds expected in Fitzroy, Sole and Shannon on Tuesday evening and Wednesday. Gales expected at times in Fitzroy and Shannon on Thursday and Friday with occasional strong winds in all other areas
Portpatrick
A ridge of high pressure over the southern North Sea on Tuesday evening will drift east with new high expected southern Baltic 1033 by midday on Wednesday before drifting away northeast. Meanwhile, developing low will move northeast, expected Iceland 978 by Wednesday evening with associated troughs moving east over UK and surrounding waters. This low will move away north on Thursday with new high expected Biscay 1031 on Thursday evening, then France 1026 on Friday. New developing low moving northeast, expected Southeast Iceland 968 by later on Friday. Gales expected to develop in all areas on Tuesday night and Wednesday, except in Lundy, Fastnet and Irish Sea, with strong winds expected in Shannon. Gales expected in Shannon, Rockall, Bailey and Southeast Iceland on Thursday with strong winds in all other areas. Gales or severe gales expected on Friday in all areas except Lundy, Fastnet and Irish Sea where strong winds are 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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