Weather Extended Outlook

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Map of extended outlook areas

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  • dark blue Niton
  • purple Cullercoats
  • dark green Portpatrick

Extended Outlooks 1800 UTC Tue 27 Sep to 1800 UTC Fri 30 Sep Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 252300 UTC

  1. Niton

    Tuesday evening large anticyclone centred 42N 16W, 1033, extending northeastwards across Biscay and the southwest approaches. Little change during Wednesday. Thursday a deepening depression moves quickly northeastwards, between Shetland and Faeores, and pressure falls across the Niton region, with a westerly flow developing across the north of the region through Friday. Later Friday a ridge of high pressure will extend eastwards across the south of the region, from a large Atlantic anticyclone. Wednesday near gale force to gale force winds across Shannon, southwest veering west, then abating from the south overnight Wednesday into Thursday. Strong to near gale force southwest winds may develop across Shannon late Friday afternoon. Across Fastnet and the Irish Sea strong to near gale force southwest winds arrive from the west through Wednesday, quickly ceasing from the south overnight. Elsewhere generally light winds, although occasional strong southwest winds are possible across Thames Wednesday night

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  2. Cullercoats

    Initially low north of Shetland, 989 slowly deepening, moving northeastwards. Second low southwest of Iceland, around 994, slow moving. By midday Wednesday first low reaches the Norwegian coast, 989, second low near 60N 10W, 994, filling, while new developing low is expected 58N 14W, 996. New low rapidly deepens, moving northeast, expected Baltic Sea by midday Thursday, around 986. A westerly flow is then expected to follow across the Cullercoats region. North of 55N; overnight Tuesday near gale force to gale force southwest then west winds, perhaps temporary severe gales Fair Isle, all strong winds abating Wednesday morning. Wednesday night gale to severe gale force southwest winds quickly extend east, easing from the northwest Thursday afternoon and evening. Friday strong to near gale force westerly winds return to north of 55N. Between 52N and 55N: strong to near gale force southwest Tuesday evening and again Wednesday night, perhaps isolated gales Wednesday night. Friday occasional strong westerly winds are likely

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  3. Portpatrick

    Initially low north of Shetland, reaching Norway by midday Wednesday, lowest pressure 985. Second low southwest of Iceland, around 994, slow moving, filling Wednesday. New low expected 58N 14W, 996 midday Wednesday, moving northeast, expected Baltic Sea midday Thursday, around 986. Further lows may develop Friday, perhaps southwest of Iceland and across the Norwegian Sea, but confidence is low. Between 55N and 60N initially near gale to gale force west or southwest winds, perhaps isolated severe gales, these quickly transferring east overnight, occasional strong west or southwest winds following. Wednesday morning near gale to gale force southwest winds reach Shannon and Rockall, then cyclonic gale to severe gale force winds extend northeastwards across the north of the region by midnight, but not reaching South-East Iceland. Thursday winds ease from the northwest, leaving occasional strong west or northwest winds across northern areas. Friday strong winds cease across the north, strong to near gale force southwest winds may reach Shannon and Rockall

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Last Updated at 23:40 UTC on Sunday 25 September