Extended Outlooks 1800 UTC Fri 17 Jul to 1800 UTC Mon 20 Jul Issued by the Met Office, on behalf on the Maritime and Coastguard Agency, at 152300 UTC

Cullercoats A developing area of low pressure will transfer northeastwards from southeast England into the southern North Sea during Friday. This low deepens rapidly as it exits southeast England, before moving northeastwards through the North Sea towards southern Scandinavia during the weekend, with the deep parent low expected to later transfer westwards towards the Shetland Islands later Sunday. There will be a transient ridge of high pressure moving eastwards from the Atlantic into Ireland during Saturday, ahead of an approaching frontal system, this expected to reach western Britain later Saturday, sliding eastsoutheastwards towards northern France during Sunday, perhaps with a low centre developing. A westerly flow follows across the United Kingdom on Monday. Cyclonic strong to gale in the central North Sea becoming northwesterly to northerly in all areas as the low moves away northeastwards, perhaps local severe gale in the western North Sea. By Sunday evening and persisting through Monday, mainly westerly to southwesterly gale in northern North Sea, locally cyclonic or severe gale near Viking and Shetland, with strong to gale westerly winds in southern North Sea and English Channel

Niton A developing area of low pressure will transfer northeastwards from southeast England into the southern North Sea during Friday. This low deepens rapidly as it exits southeast England, before moving northeastwards through the North Sea towards southern Scandinavia during the weekend, with the deep parent low expected to later transfer westwards towards the Shetland Islands later Sunday. There will be a transient ridge of high pressure moving eastwards from the Atlantic into Ireland during Saturday, ahead of an approaching frontal system, this expected to reach western Britain later Saturday, sliding eastsoutheastwards towards northern France during Sunday, perhaps with a low centre developing. A westerly flow follows across the United Kingdom on Monday. Westerly to northwesterly strong to gale in all areas Friday evening through Saturday, backing southwesterly strong for a time later Saturday. Strong westerly winds following south of 50N on Sunday, but extending to all areas on Monday. Winds easing later Monday in Biscay and much of Fitzroy

Portpatrick A developing area of low pressure will transfer northeastwards from southeast England into the southern North Sea during Friday. This low deepens rapidly as it exits southeast England, before moving northeastwards through the North Sea towards southern Scandinavia during the weekend, with the deep parent low expected to later transfer westwards towards the Shetland Islands later Sunday. There will be a transient ridge of high pressure moving eastwards from the Atlantic into Ireland during Saturday, ahead of an approaching frontal system, this expected to reach western Britain later Saturday, sliding eastsoutheastwards towards northern France during Sunday, perhaps with a low centre developing. A westerly flow follows across the United Kingdom on Monday. Strong northeasterly winds in southeast Iceland Friday evening and at first on Saturday. Strong northerly to northwesterly winds extending to sea areas north and northwest of Scotland during Sunday and Monday, increasing to gale, perhaps severe gale in Fair Isle. Winds locally strong west to northwesterly at times in other areas