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Extended Outlook

Extended outlook forecast

Issued: 2200 on Tue 30 Sep 2014 UTC

Issued by the Met Office, on behalf of the Maritime and Coastguard Agency

Valid from 2300 on Thu 02 Oct 2014 UTC until 2300 on Sun 05 Oct 2014 UTC

Cullercoats

Thursday evening high pressure over south of region and low pressure, 964, west of Iceland. Thursday night pressure falls across the southern half of region, as the low moves slowly east, expected east of Iceland, 970 midday Friday, moving away northwards late Friday. Low pressure trough moves east across region Saturday with weak low centre moving Forth to Viking, both clearing early Sunday. New low expected 62N 21W, 980 early Sunday becoming slow moving. Risk Severe gales Fair Isle late Sunday. Strong to gale force winds Viking, North Utsire, Forties, Cromarty and Fair Isle. Strong winds extending southeastwards to South Utsire, Forth, Tyne, Dogger, Fisher midday Friday. Winds easing to occasional strong winds N of 53N late Friday. Saturday strong winds confined to east of 1E by midday, risk gales Viking, North Utsire, easing late Saturday. Further strong winds Fair Isle late Saturday moving into all areas except Fisher and German Bight by late Sunday

Niton

Thursday evening high pressure centred near Azores extends northeastwards across southern UK and southern North Sea. A deep low pressure west of Iceland gives falling pressure across northern half of Niton region Thursday night and early Friday. Late Friday low pressure trough moves east across all parts of region, clearing Thames Saturday afternoon. Behind this high pressure builds from the southwest across all areas. Pressure falls late Saturday across Sole, Lundy, Fastnet, Irish Sea and Shannon as a new low pressure south of Iceland. Sunday, pressure falls across rest of region. Strong winds Sole, Lundy, Fastnet, Shannon late Thursday, near gale in Shannon at firt. Strong winds spreading into north Fitzroy early Friday and Plymouth late Friday, easing all ease except Shannon early Saturday. Early sunday strong to near gale force winds Shannon. Occasional strong winds spreading southeast to all areas by late Sunday

Portpatrick

Low pressure centre, 964, west of Iceland on Thursday evening will move slowly east on Thursday night and is expected to lie east of Iceland, 970, by midday Friday. This low pressure expected to move away northwards late Friday. New low expected southwest of Iceland early Saturday, moving east to be centred 62N 21W, 980 early Sunday and becoming slow moving. Strong to near gale force winds expected all areas late Thursday, with gales north of 53N and risk severe gales Hebrides, Fair Isle, Faeroes, SE Iceland. Gales confined to north of 59N by midday Friday. Strong winds easing Rockall, Malin, Hebrides, Bailey, Fair Isle and SE Iceland by late Friday, with gales easing to occasional strong winds Faeroes. Saturday, further strong to near gale winds spreading east into all areas by afternoon. Strong winds becoming confined to S of 54N by late Sunday

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; Cullercoast, 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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