Y Tywydd Rhagolwg Estynedig

Gosodiadau
Iaith

Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

Map of extended outlook areas

Map Key

  • dark blue Niton
  • purple Cullercoats
  • dark green Portpatrick

Extended Outlooks 1800 UTC Mon 02 Feb to 1800 UTC Thu 05 Feb Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 312300 UTC

  1. Niton

    Low eastern Baltic 985 late Monday, moving slowly south, filling, losing its identity by early Wednesday. Strong northerly flow on western flank with lows moving south over the North Sea Tuesday. Meanwhile, a strong ridge Azores to Denmark Strait, 1028 mid-Atlantic, building, with a large, slow-moving high expected west of Shannon 1037 midday Wednesday, associated ridge extending to Norwegian Sea by same time, east to western Baltic by late Thursday. Low expected south Biscay 1000 late Monday, moving east to western Mediterranean then becoming slow moving and deepening through remainder of period. West of 6 west and Irish Sea, strong winds or gales Tuesday to Wednesday, then winds moderating later Wednesday and Thursday in Irish Sea and Shannon. Biscay, strong winds, perhaps gales, moderating for a time Tuesday but further strong winds or gales later Tuesday onwards. Other areas east of 6 west, strong winds Thames at first moderating, but strong winds developing all areas later Tuesday with risk gales Thursday

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  2. Cullercoats

    Low eastern Baltic 985 late Monday, moving slowly south, filling, losing its identity by early Wednesday. Strong northerly flow on western flank with lows moving south over North Sea Tuesday. Meanwhile, a strong ridge Azores to Denmark Strait, 1028 mid-Atlantic, building, with a large, slow-moving high expected west of Shannon 1037 midday Wednesday, associated ridge extending to Norwegian Sea by same time, east to western Baltic by late Thursday. Pressure remains low over France and Iberia and to the north of Iceland. North of 55 north, occasional strong winds all areas late Monday to late Wednesday, with risk gales at times in west Viking and Fair Isle Tuesday. Thereafter, further strong winds at times north Viking, North Utsire and Fair Isle but winds moderating other areas. South of 55 north, Thames, Dover, Wight, occasional strong winds Thames at first, moderating early Tuesday. Strong winds developing from later Tuesday, risk gales Thursday. Other areas, occasional strong winds much of period

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  3. Portpatrick

    Low eastern Baltic around 985 late Monday, moving slowly south, filling and losing its identity by early Wednesday. Strong northerly flow on its western flank with low centres moving south over the North Sea and British Isles through Tuesday. Meanwhile, a strong ridge of high pressure from Azores to Denmark Strait, around 1028 mid-Atlantic, expected to build, with a large, slow moving centre expected west of Sole and Shannon 1037 by midday Wednesday, with associated ridge extending northeast to Norwegian Sea by same time and east to western Baltic by late Thursday. Pressure remains low over France and Iberia throughout and also low to the north of Iceland. Faeroes, Southeast Iceland, severe gales at first, moderating Tuesday but further strong winds or gales through rest of period. Other areas, gales for a time late Monday and Tuesday, occasional strong winds through rest of period

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Last Updated at 22:35 UTC on Saturday 31 January