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Extended Outlook

2000 UTC Sunday 06 September to 2000 UTC Wednesday 09 September 2015
Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 041951 UTC

Cullercoats

On Sunday evening a large area of high pressure is expected to be centred just off the west coast of Ireland, 1033. This is expected to be the dominant feature through the forecast period as it moves slowly eastwards, to be centred Malin 1030 by midday on Monday. During this time a low centred southern Sweden 994, will slowly moves eastwards as a filling feature. The large high will then slowly move eastwards over Northern England then into the North Sea to be centred over sea area German Bight, 1029, by the end of the period. Strong northwesterly winds will cover most of the Cullercoats sea areas, north of sea area Thames, on Sunday night. These strong winds are expected to ease to moderate by Monday morning. During the early hours of Tuesday strong northwesterly winds will briefly affect sea area Fisher. However these will be short lived and no further hazardous winds are forecast to affect Cullercoats

Niton

On Sunday evening a large area of high pressure is expected to be centred just off the west coast of Ireland, 1033. This is expected to be the dominant feature through the forecast period as it moves slowly eastwards, to be centred Malin 1030 by midday on Monday. During this time a low centred southern Sweden 994, will slowly moves eastwards as a filling feature. The large high will then slowly move eastwards over Northern England then into the North Sea to be centred over sea area German Bight, 1029, by the end of the period. Strong easterly or northeasterly winds are expected to persist across south Biscay and Fitzroy for much of this forecast period, especially around Cape Finisterre. On Tuesday strong easterly or southeasterly winds look set to develop across Biscay, Fitzroy, Sole and Shannon, with winds decreasing across southern Fitzroy. Later on Tuesday strong southeasterly winds may briefly reach gale strength across north west Shannon. During Wednesday winds will ease across Niton, except northwest Shannon, where strong to gale force southerlies will persist

Portpatrick

On Sunday evening a large area of high pressure is expected to be centred just off the west coast of Ireland, 1033. This is expected to be the dominant feature through the forecast period as it moves slowly eastwards, to be centred Malin 1030 by midday on Monday. It will then slowly move eastwards over Northern England into the North Sea to be centred over German Bight, 1029, by the end of the period. Overnight Sunday into Monday strong southwesterly winds will affect the northern half of South East Iceland. These will ease on Monday however later on Monday strong southeasterly winds will develop over Shannon and Rockall. On Tuesday southerly or southeasterly winds will strengthen across Shannon, Rockall and Bailey reaching gale force across northwest Shannon and west Rockall. These strong to gale force winds will transfer northwards quickly later on Tuesday into Wednesday affecting Malin, Hebrides, Faeroes and Southeast Iceland before increasing to gale or severe gale force in western Rockall and southwest Bailey.

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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