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Extended Outlook

2100 UTC Saturday 28 May to 2100 UTC Tuesday 31 May 2016
Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 262001 UTC

Cullercoats

On Saturday evening and at first on Sunday a low pressure centre in Fitzroy will steadily fill. The Siberian high pressure will extend a ridge across the UK at first, but this will move northwards through Sunday as a low pressure centred in the Low Countries deepens to 997 and extends troughs of low pressure across the North Sea and UK. The ridge axis will become established from Iceland to Fitzroy through Monday and Tuesday with the low pressure centre located near the Dover Strait. Winds will be broadly northeasterly through Saturday evening. Through Sunday winds will become strong at times in the southern North Sea, including Forties and Fisher later. On Monday strong northerly winds will extend to all North Sea areas, perhaps with northerly gales in Humber and Thames, and in central areas of the North Sea later. Winds may be strong at times in all sea areas on Tuesday

Niton

On Saturday evening and at first on Sunday a low pressure centre in Fitzroy will steadily fill. The Siberian high pressure will extend a ridge across the UK at first, but this will move northwards through Sunday as a low pressure centred in the Low Countries deepens to 997 and extends troughs of low pressure across the North Sea and UK. The ridge axis will become established from Iceland to Fitzroy through Monday and Tuesday with the low pressure centre located near the Dover Strait. On Saturday evening winds will be occasionally strong in south Fitzroy. Winds will be mainly moderate through Sunday in Atlantic sea areas, but increasing to strong northerly in Thames, Dover and Wight. On Monday northwesterly winds will be strong at times in all sea areas except Fitzroy, Sole and Shannon, then those strong winds will slowly decrease through Tuesday

Portpatrick

On Saturday evening and at first on Sunday a low pressure centre in Fitzroy will steadily fill. The Siberian high pressure will extend a ridge across the UK at first, but this will move northwards through Sunday as a low pressure centred in the Low Countries deepens to 997 and extends troughs of low pressure across the North Sea and UK. The ridge axis will become established from Iceland to Fitzroy through Monday and Tuesday with the low pressure centre located near the Dover Strait. Winds will be mainly light or moderate through Saturday evening and Sunday and at first on Monday, but strong northerly winds will develop in Lundy, Fastnet and Irish Sea on Monday, and in Malin, Hebrides and Fair Isle later Monday. Strong northerly winds may also develop in Rockall, Bailey and Faeroes on Tuesday, but moderate further south

Extended outlook overview

The extended outlooks are issued once a day, at 2300 GMT and cover the next 3 to 5 days.

For the extend 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.

In the UK, the Maritime & Coastguard Agency (MCA) is responsible for the provision of Maritime Safety Information (MSI) to ships at sea, which includes the broadcast of warnings and forecasts. The Met Office initiates warnings and prepares routine forecasts for dissemination on behalf of the MCA.

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