Coast and sea

Extended outlook

Issued at: .

For the period to .

Extended outlook map

Cullercoats

On Friday evening, a high situated over France, 1040, slowly moves northeastwards, whilst gradually declining, and is expected to be centred over the Low Countries, 1039, by Monday evening. Elsewhere, a continuous string of Atlantic lows push northeastwards through Denmark Strait and into the Arctic Ocean. Hence, there is a rough northwest-southeast split across the region, with the northwest seeing the strongest winds as it's affected by the lows and the southeast seeing the lightest winds under the influence of the high. Widespread strong winds initially cover all areas except from Dover and Wight, with near gales in Fair Isle, before gradually easing from the south through Saturday. Strong winds becoming confined to Viking, North Utsire and Fair Isle by the early hours of Sunday. Winds then continuing to ease through Sunday and Monday, with Fair Isle becoming the only area with strong winds by Monday evening

Niton

On Friday evening, a high situated over France, 1040, slowly moves northeastwards, whilst gradually declining, and is expected to be centred over the Low Countries, 1039, by Monday evening. Elsewhere, a continuous string of Atlantic lows push northeastwards through Denmark Strait and into the Arctic ocean. Hence, there is a rough northwest-southeast split across the region, with the northwest seeing the strongest winds as it's affected by the lows and the southeast seeing the lightest winds under the influence of the high. Persistent strong winds are present in Shannon throughout the entire period, particularly in the northwest. Elsewhere, winds largely staying below-strong for the majority of the period, although temporarily increasing to strong in the southwest of Fitzroy during the middle part of the Saturday, and then again increasing to strong in western Fitzroy as well as western Sole through Monday

Portpatrick

On Friday evening, a high situated over France, 1040, slowly moves northeastwards, whilst gradually declining, and is expected to be centred over the Low Countries, 1039, by Monday evening. Elsewhere, a continuous string of Atlantic lows push northeastwards through Denmark Strait and into the Arctic ocean. Hence, there is a rough northwest-southeast split across the region, with the northwest being affected by the lows and the southeast by the high. Widespread strong winds cover all regions, except from Lundy, Fastnet and Irish Sea. During Saturday, a swathe of gales spread northeastwards into Bailey, Faeroes and Southeast Iceland, increasing to occasional severe gales in Southeast Iceland by Saturday afternoon, with isolated gusts to Storm Force at times. Gales then easing across the Atlantic Areas through the early hours of Sunday before increasing to gale force again through Monday afternoon in Bailey and Southeast Iceland

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.

Marine forecasts disclaimer

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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