Y Tywydd Rhagolwg Estynedig

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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 Wed 29 Apr to 1800 UTC Sat 02 May Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 272300 UTC

  1. Niton

    Initially low centred near Aberdeen, 999. Low moves southeast to become centred mid North Sea by midday Thursday, 1003, and a slack pressure pattern follows across the region. Friday the ridge moves east across the UK as an Atlantic depression approaches the UK. Currently low expected 50N 30W, 990, midday Friday. Saturday the low is likely to become slow moving mid Atlantic and multi-centred, while Atlantic fronts slowly move northeastwards across the region. Isolated strong winds Wednesday night, mainly across the far north and far south of the region. Thursday morning most strong winds abate. Thursday night a band of strong winds is expected to move northeastwards across the west of the Niton region, with strong winds following to southern Fiztroy; these persisting through the rest of the forecast period. Friday strong winds also likely across Sole and Shannon, and possibly Fastnet. Saturday strong winds across Shannon initially, where they may increase to near gale force, before transferring away northwards

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  2. Cullercoats

    At first Wednesday evening low centred just east of Aberdeen, 999. Low moves southeast to become centred across the middle of the North Sea by midday Thursday, 1003. Low then moves east reaching the southern Baltic Sea midday Friday, 994. A ridge of high pressure then extends south and east across the Cullercoats region Friday night and during Saturday. Strong winds across Fair Isle Wednesday evening, with a chance of near gales at first. Overnight isolated strong winds persist across Fair Isle, then abate Thursday morning. Friday strong winds are expected to develop across the northeast of the region, chance of near gales developing across South Utsire and Fisher. Saturday strong winds or near gales continue across the northeast of the region, the near gales more likely, especially across North and South Utsire, and later in the day across Fisher

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  3. Portpatrick

    Initially low centred near Aberdeen, 999. Low moves southeast to become centred mid North Sea by midday Thursday, 1003, and a weak ridge extends south across the Portpatrick region. Friday the ridge moves east across the UK as an Atlantic depression approaches the UK. Currently low expected 50N 30W, 990, midday Friday. Saturday low is expected to become slow moving mid Atlantic and multi-centred, with ridge conditions prevailing across the north of the Portpatrick region while Atlantic fronts try and move northeastwards across the south. North of 55N strong winds across many places Wednesday evening, with a chance of near gales at first across Fair Isle. Overnight north of 55N strong winds become isolated, then gradually abate through Thursday. Friday strong winds expected to gradually spread across Shannon, later Rockall and perhaps Fastnet. Saturday strong winds are likely mostly affect Shannon initially then also Rockall, possibly increasing near gale force, but also strong winds may extend across Malin and Bailey

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Last Updated at 23:41 UTC on Monday 27 April