Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A thundery area of low pressure will persist to the south of the United Kingdom, while an slack pressure zone remains over the rest of the country.

* Wind or gale warning issued

  1. From Cape Wrath to Rattray Head including Orkney

    From Cape Wrath to Rattray Head including Orkney

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Southerly or southwesterly 3 or 4, occasionally 5 in north.
    • Sea State

      Slight, becoming moderate or rough to the north and west of Orkney.
    • Weather

      Occasional rain or showers, fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Southwesterly, backing southeasterly, 3 or 4, occasionally 5 in north at first.
    • Sea State

      Moderate or rough north and west of Orkney, otherwise slight.
    • Weather

      Occasional rain or thundery showers, fog patches later.
    • Visibility

      Moderate or good, occasionally very poor later.

    Issued at 23:00 UTC on Tuesday 18th Jun

  2. Rattray Head to Berwick on Tweed

    Rattray Head to Berwick on Tweed

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable, mainly southwest, 3 or 4.
    • Sea State

      Slight.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable, becoming south or southeast, 3 or 4.
    • Sea State

      Slight.
    • Weather

      Fair, then occasional rain or thundery showers in south, fog patches later.
    • Visibility

      Moderate or good, occasionally very poor later.

    Issued at 23:00 UTC on Tuesday 18th Jun

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 3 or 4.
    • Sea State

      Slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable, becoming northeast, then veering east or southeast later, 3 or 4.
    • Sea State

      Slight.
    • Weather

      Occasional rain or thundery showers, fog patches later.
    • Visibility

      Moderate or good, occasionally very poor later.

    Issued at 23:00 UTC on Tuesday 18th Jun

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 2 or 3, becoming north or northeast 3 or 4 later.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Easterly or northeasterly 3 or 4, increasing 5 for a time in south.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 3 or less, becoming northerly or northeasterly 4 or 5.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Northerly or northeasterly, 4 or 5, becoming variable 2 or 3 later.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable, becoming northeasterly, 2 or 3 increasing 4 or 5 in east later.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable 2 or 3, but northerly or northeasterly 4 or 5 in east at first.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 3 or 4.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable, becoming south or southwest, 3 or 4.
    • Sea State

      Slight.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  8. Lyme Regis to Lands End including the Isles of Scilly

    Lyme Regis to Lands End including the Isles of Scilly

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 2 or 3, becoming northerly 3 or 4, occasionally 5 later in west.
    • Sea State

      Slight, occasionally moderate in far west.
    • Weather

      Fog patches, showers in east.
    • Visibility

      Moderate or poor, occasionally very poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Northerly, backing westerly later, 3 or 4, occasionally 5 in west.
    • Sea State

      Slight in east, moderate in west.
    • Weather

      Thundery showers, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  9. Lands End to St Davids Head including the Bristol Channel

    Lands End to St Davids Head including the Bristol Channel

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 3 or less, becoming northerly 3 or 4, occasionally 5 in west.
    • Sea State

      Slight, occasionally moderate in far southwest.
    • Weather

      Fair.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Northerly, backing westerly later, 3 or 4, occasionally 5 in west.
    • Sea State

      Slight, occasionally moderate in southwest.
    • Weather

      Showers, becoming thundery.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  10. St Davids Head to Great Ormes Head, including St Georges Channel

    St Davids Head to Great Ormes Head, including St Georges Channel

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable 2 or 3, becoming northerly or northwesterly 4 or 5.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      North 3 or 4, backing west or northwest 2 or 3 later.
    • Sea State

      Slight.
    • Weather

      Fair then rain or showers.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 18th Jun

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable, mainly northwesterly, 3 or 4.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable 2 or 3.
    • Sea State

      Slight.
    • Weather

      Rain or showers later.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 18th Jun

  12. Isle of Man

    Isle of Man

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Northwest 3 or 4, becoming variable 2 or 3 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable 2 or 3, becoming southeast 3.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 23:00 UTC on Tuesday 18th Jun

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable, mainly west or northwest, 3 or 4.
    • Sea State

      Smooth or slight, becoming moderate in north.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable, mainly southeast, 3 or 4.
    • Sea State

      In far north moderate occasionally rough, otherwise slight.
    • Weather

      Fair then occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 18th Jun

  14. The Mull of Galloway to Mull of Kintyre including the Firth of Clyde and the North Channel

    The Mull of Galloway to Mull of Kintyre including the Firth of Clyde and the North Channel

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Variable, mainly northwest, 3 or 4.
    • Sea State

      Smooth, becoming moderate around Mull of Kintyre.
    • Weather

      Fair.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Variable, mainly southeast, 3 or 4.
    • Sea State

      Moderate around Mull of Kintyre, otherwise slight.
    • Weather

      Fair then occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 18th Jun

  15. Mull of Kintyre to Ardnamurchan Point

    Mull of Kintyre to Ardnamurchan Point

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Southerly or southwesterly 3 or 4, occasionally 5 in north.
    • Sea State

      Slight or moderate, becoming moderate or rough.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Southerly 3 or 4, occasionally 5 in north.
    • Sea State

      Moderate or rough.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 23:00 UTC on Tuesday 18th Jun

  16. The Minch * warning

    The Minch

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    Strong wind warning

    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      South or southwest, 3 or 4, increasing 5 or 6 for a time.
    • Sea State

      Moderate in far north and south, otherwise slight.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      South 4 or 5, becoming variable 2 or 3 later.
    • Sea State

      Moderate or rough in far north and south, otherwise slight.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  17. Ardnamurchan Point to Cape Wrath including the Outer Hebrides * warning

    Ardnamurchan Point to Cape Wrath including the Outer Hebrides

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    Strong wind warning

    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      South or southwest, 3 or 4, increasing 5 or 6 for a time.
    • Sea State

      Moderate, becoming rough.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      South 4 or 5, becoming variable 2 or 3 later.
    • Sea State

      Rough, occasionally very rough in west.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 18th Jun

  18. Shetland Isles * warning

    Shetland Isles

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Southwesterly 4 or 5, occasionally 3 at first.
    • Sea State

      Slight or moderate, becoming rough in west later.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor at first.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 23:00 UTC on Tuesday 18th Jun

    For coastal areas up to 60 nautical miles from Lerwick, Shetland

    Gale Warnings in operation for Sea Area Fair Isle: Nil

    23:00 UTC Tue 18th Jun – 10:59 UTC Wed 19th Jun

    • Wind

      Southwesterly 3 or 4, occasionally 5 in west and north.
    • Sea State

      Slight or moderate.
    • Weather

      Fair at first in west, otherwise periods of rain or showers.
    • Visibility

      Good or moderate, occasionally poor.

    11:00 UTC Wed 19th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Southwesterly 4 or 5, occasionally 3 in southeast.
    • Sea State

      Slight or moderate, becoming rough in west.
    • Weather

      Rain, later mainly fair.
    • Visibility

      Good or moderate.

    Issued at 23:00 UTC on Tuesday 18th Jun

  19. The Channel Islands

    The Channel Islands

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    23:00 UTC Tue 18th Jun – 22:59 UTC Wed 19th Jun

    • Wind

      Northerly or variable 1 to 3, soon increasing 3 to 4, veering northeast during the afternoon, decreasing 1 to 3 later, becoming locally variable near the brittany coast.
    • Sea State

      Smooth or slight.
    • Weather

      Isolated showers with the risk of thunder, perhaps dying out for a time in the morning mist or fog patches especially in the north and west.
    • Visibility

      Moderate to poor in showers or mist, very poor in fog, otherwise moderate to good.

    23:00 UTC Wed 19th Jun – 22:59 UTC Thu 20th Jun

    • Wind

      Northeast or variable 2 to 3, becoming southerly by morning, veering west by the evening, increasing 3 to 4 later.
    • Sea State

      Slight with a low swell, locally moderate later.
    • Weather

      Scattered thundery showers, perhaps clearing for a time in the morning risk of mist or fog patches mainly in the morning.
    • Visibility

      Moderate to good, locally moderate to poor in showers or mist and very poor in any fog.

    Issued at 23:00 UTC on Tuesday 18th Jun