Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

High pressure and warm air will continue to affect the United Kingdom over the next few days. It will remain quiet, but sea fog will affect many coasts at times.

* Wind or gale warning issued

  1. From Cape Wrath to Rattray Head including Orkney * warning

    From Cape Wrath to Rattray Head including Orkney

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    Strong wind warning

    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southwesterly 4 or 5, decreasing 3 at times, but occasionally 6 in far northwest, becoming variable 3 or 4 later.
    • Sea State

      Smooth or slight, occasionally moderate in northwest.
    • Weather

      Occasional drizzle with fog patches in northwest.
    • Visibility

      Moderate or good, occasionally very poor in northwest.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Variable, becoming southerly or southeasterly, 3 or 4, increasing 5 at times.
    • Sea State

      Smooth or slight, occasionally moderate in northwest.
    • Weather

      Fog patches mainly in north.
    • Visibility

      Moderate or good, occasionally very poor mainly in north.

    Issued at 12:00 UTC on Wednesday 24th May

  2. Rattray Head to Berwick on Tweed

    Rattray Head to Berwick on Tweed

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Westerly or southwesterly, becoming variable later, 3 or 4, occasionally 5 at first mainly in south.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional drizzle at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Variable, becoming southerly or southeasterly, 3 or 4, increasing 5 at times.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 12:00 UTC on Wednesday 24th May

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

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

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Variable, becoming southeast, 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 12:00 UTC on Wednesday 24th May

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Variable 3 or less, occasionally 4 at first.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Variable 3 or less, becoming southeast 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 12:00 UTC on Wednesday 24th May

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Variable 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches later.
    • Visibility

      Moderate or good, occasionally very poor later.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Variable, becoming easterly or southeasterly, 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 12:00 UTC on Wednesday 24th May

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southwesterly 3 or 4, becoming variable 3 or less, then becoming easterly or northeasterly 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Easterly or northeasterly 4 or 5, decreasing 3 at times.
    • Sea State

      Smooth or slight, occasionally moderate.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southwest 3 or 4, becoming variable 3 or less, then becoming east 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

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

      Slight or moderate, occasionally smooth at first.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  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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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Variable 3 or less, becoming east 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight, occasionally moderate in southwest.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      East or southeast 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate, occasionally smooth at first in far northeast.
    • Weather

      Fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  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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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Variable 3 or less, becoming easterly 3 or 4, occasionally 5 later in south.
    • Sea State

      Slight or moderate, occasionally smooth in the Bristol Channel.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Easterly or southeasterly 4 or 5, occasionally 3 at first, then increasing 6 at times.
    • Sea State

      Slight or moderate, occasionally smooth in the Bristol Channel.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  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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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Variable 3 or less, becoming east or southeast 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      East or southeast, becoming variable for a time, 3 or 4, increasing 5 at times.
    • Sea State

      Smooth or slight, occasionally moderate later in far south.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 12:00 UTC on Wednesday 24th May

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      West or southwest 3 or 4, becoming variable 3 or less, then becoming east or northeast 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Variable, mainly east, 3 or 4, veering southeast 4 or 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  12. Isle of Man

    Isle of Man

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      South or southwest 3 or 4, becoming variable 3 or less, then becoming east or southeast 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      East or southeast, backing northeast for a time, 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight, occasionally moderate later.
    • Weather

      Fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southerly or southwesterly, becoming variable, then becoming southeasterly later, 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Southeasterly 4 or 5, occasionally 6 later, but becoming variable 3 or 4 at times mainly in south.
    • Sea State

      Smooth or slight, occasionally moderate in far north.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 12:00 UTC on Wednesday 24th May

  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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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southerly or southwesterly, becoming variable, 3 or 4, then becoming southeasterly 4 or 5 later in the North Channel.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Southeasterly 4 or 5, occasionally 6 later in the North Channel, but becoming variable 3 or 4 at times.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 12:00 UTC on Wednesday 24th May

  15. Mull of Kintyre to Ardnamurchan Point

    Mull of Kintyre to Ardnamurchan Point

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southwest, backing southeast, but becoming variable for a time, 3 or 4, occasionally 5 later.
    • Sea State

      Slight or moderate, occasionally smooth in southeast.
    • Weather

      Occasional drizzle at first, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Southeast 4 or 5, becoming variable 3 at times, then occasionally 6 later.
    • Sea State

      Slight or moderate, occasionally smooth in southeast.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 12:00 UTC on Wednesday 24th May

  16. The Minch * warning

    The Minch

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    Strong wind warning

    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southwesterly 4 or 5, occasionally 6 in far north, backing southerly or southeasterly 4 or 5 later.
    • Sea State

      Smooth at times in central areas, otherwise slight or moderate.
    • Weather

      Occasional drizzle at first, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Southerly or southeasterly 4 or 5, occasionally 6 later in south, but becoming variable 3 or 4 for a time.
    • Sea State

      Smooth or slight, occasionally moderate in south.
    • Weather

      Fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  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

    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      Southwesterly 4 or 5, occasionally 6 in north, backing southerly or southeasterly 4 or 5 later.
    • Sea State

      Moderate, occasionally slight.
    • Weather

      Occasional drizzle at first, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Southerly or southeasterly 4 or 5, occasionally 6 later in south, but becoming variable 3 or 4 for a time.
    • Sea State

      Moderate, occasionally slight.
    • Weather

      Fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      West or southwest 4 or 5, occasionally 3 at first, then increasing 6 at times.
    • Sea State

      Slight or moderate, occasionally smooth at first in eastern shelter.
    • Weather

      Occasional rain or drizzle with fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 12:00 UTC on Wednesday 24th May

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

    Gale Warnings in operation for Sea Area Fair Isle: Nil.

    12:00 UTC Wed 24th May – 23:59 UTC Wed 24th May

    • Wind

      West or southwest 4 or 5, decreasing 3 at times, then occasionally 6 later.
    • Sea State

      Slight or moderate, occasionally smooth in eastern shelter.
    • Weather

      Occasional rain or drizzle with fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    00:00 UTC Thu 25th May – 11:59 UTC Thu 25th May

    • Wind

      West or southwest 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or drizzle, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 12:00 UTC on Wednesday 24th May

  19. The Channel Islands

    The Channel Islands

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    12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

    • Wind

      North to northeast 2 to 4, veering east and increasing 3 to 4 late evening, perhaps occasionally 5.
    • Sea State

      Smooth or slight, increasing slight, occasionally moderate by morning, with a low swell.
    • Weather

      Mist and fog patches at first this afternoon and from later tonight.
    • Visibility

      Moderate to good, locally poor or very poor at times.

    12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

    • Wind

      Easterly 4 to 5.
    • Sea State

      Slight to moderate, with a low swell.
    • Weather

      Risk of mist patches early Thursday afternoon.
    • Visibility

      Mainly good, perhaps locally moderate to poor at first.

    Issued at 12:00 UTC on Wednesday 24th May

From Cape Wrath to Rattray Head including Orkney

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Strong wind warning

12:00 UTC Wed 24th May – 11:59 UTC Thu 25th May

  • Wind

    Southwesterly 4 or 5, decreasing 3 at times, but occasionally 6 in far northwest, becoming variable 3 or 4 later.
  • Sea State

    Smooth or slight, occasionally moderate in northwest.
  • Weather

    Occasional drizzle with fog patches in northwest.
  • Visibility

    Moderate or good, occasionally very poor in northwest.

12:00 UTC Thu 25th May – 11:59 UTC Fri 26th May

  • Wind

    Variable, becoming southerly or southeasterly, 3 or 4, increasing 5 at times.
  • Sea State

    Smooth or slight, occasionally moderate in northwest.
  • Weather

    Fog patches mainly in north.
  • Visibility

    Moderate or good, occasionally very poor mainly in north.

Issued at 12:00 UTC on Wednesday 24th May