Extended outlook

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

Cullercoats

Thursday evening, low pressure will be centred, 1003, over Iceland, with weak low centres, 1008, over sea area Forties. High pressure centres will be situated near the Azores, extending north-eastwards through Biscay into France. During Friday pressure will build through Biscay and France with the North Sea low pressure drifting north into Fair Isle and deepening a little to 1002. Overnight into Saturday high pressure in the south continues to amplify as the low in Fair Isle drifts north into the Norwegian Basin and eventually begins to fill. On Sunday pressure will remain high to the south, as a weak low moves into Rockall from the Atlantic. No gales are expected across Cullercoats until overnight Friday into Saturday when a narrow swathe of cyclonic gales will develop in Fair Isle before moving into Viking and easing northwards during Saturday morning


Niton

Thursday evening, low pressure 1003 will be centred over Iceland, with weak low centres in the North Sea, 1007. The seasonal low pressure over Iberia will persist through the period. High pressure centres will be situated near the Azores, extending through Biscay into France. During Friday pressure will build through Biscay and France with the North Sea low pressure drifting north into Fair Isle and deepening a little. Overnight into Saturday high pressure in the south continues to amplify as the low in Fair Isle drifts north into the Norwegian Basin and fills. On Sunday pressure will remain high to the south, as a weak low moves into Rockall from the Atlantic. No gales are expected across Niton through the period, although strong winds are possible in south Fitzroy near the Galician coast and at times in northern Shannon, mainly Sunday


Portpatrick

Thursday evening, low pressure will be centred 1003 over Iceland, with weak low centres in the North Sea. High pressure centres will be situated near the Azores, extending through Biscay into France. During Friday a weak low will drift eastwards into sea area Baily from the Atlantic while pressure will build through Biscay and France. The North Sea low pressure will drift north into Fair Isle and deepen a little. Overnight into Saturday high pressure in the south continues to amplify as the low in Fair Isle drifts north into the Norwegian Basin and fills. On Sunday pressure will remain high to the south, as a weak low moves into Rockall from the Atlantic. No gales are expected across Portpatrick through the period, although strong winds are possible near troughs and low centres, most likely Rockall, and Shannon on Sunday