Y Tywydd Rhagolwg Estynedig

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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 Thu 31 Jul to 1800 UTC Sun 03 Aug Issued by the Met Office, on behalf on the Maritime and Coastguard Agency, at 292300 UTC

  1. Niton

    On Thursday evening, a slack area of low pressure centred 1006 over Scotland extends off a deeper area of low pressure in the Norwegian Sea. A ridge of high pressure extends off the Azores high to the south of the UK, lying through Fitzroy, with a heat low over Iberia. Overnight and into Friday, a new low west of Bailey deepens and moves southeast, centred 1004 over Malin at midday, whilst a new ridge builds over Faeroes and the Azores High extension declines. This low deepens further overnight into Saturday, lying centred 997 near southwest England by midday. Overnight and into Sunday this low fills and moves northeast across Britain, with the Azores ridge rebuilding across south Fitzroy. This ridge will continue to build across the UK late on Sunday as the low continues northwards. Strong winds, possibly near gale, are likely across north Biscay, north Fitzroy, Sole, Plymouth and Shannon overnight Friday into Saturday day, easing by Sunday

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  2. Cullercoats

    On Thursday evening, a slack area of low pressure centred 1006 over Scotland extends off a deeper area of low pressure in the Norwegian Sea. A ridge of high pressure extends off the Azores high to the south of the UK, lying through Fitzroy. Overnight and into Friday, a new low west of Bailey deepens and moves southeast, centred 1004 over Malin at midday, whilst a new ridge builds over Faeroes and the Azores High extension declines. This low deepens further overnight into Saturday, lying centred 997 near southwest England by midday. Overnight and into Sunday this low fills and moves northeast across Britain, with the Azores ridge rebuilding across south Fitzroy. This ridge will continue to build across the UK late on Sunday as the low continues northwards. Strong winds may start to develop across Fair Isle from midday Saturday onwards, potentially reaching near gale for a time in north Fair Isle overnight and into Sunday

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  3. Portpatrick

    Thursday evening, an area of low pressure centred 1006 over Scotland extends off a deeper area of low pressure in the Norwegian Sea. A ridge of high pressure extends off the Azores high to the south of the UK. Overnight and into Friday, a new low west of Bailey deepens and moves southeast, centred 1004 over Malin at midday, whilst a new ridge builds over Faeroes and the Azores High extension declines. This low deepens further overnight into Saturday, lying centred 997 near southwest England by midday. Overnight and into Sunday this low fills and moves northeast across Britain, with the Azores ridge rebuilding across southern UK late on Sunday as the low continues further northwards. Strong winds may start to develop across Hebrides, Fair Isle and Faeroes from midday Saturday onwards, potentially reaching near gale for a time overnight and into Sunday, when strong winds may also spread into Bailey and South East Iceland

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Last Updated at 23:40 UTC on Tuesday 29 July