Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

High pressure will remain slow moving over the United Kingdom, slowly declining during Wednesday and Thursday.

* 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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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Westerly 4 or 5, becoming variable 3 or 4 in south later.
    • Sea State

      Smooth or slight in southeast, slight or moderate in north.
    • Weather

      Occasional rain and fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Westerly 4 or 5, but variable mainly southwesterly 3 or 4 in south.
    • Sea State

      Smooth or slight in southeast, slight or moderate in north.
    • Weather

      Occasional rain, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  2. Rattray Head to Berwick on Tweed

    Rattray Head to Berwick on Tweed

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Westerly becoming variable 3 or 4, occasionally 5 at first arround Rattray Head,.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Variable becoming southerly or southeasterly, 3 or 4 occasionally 5 in south later.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Variable 3 or less.
    • Sea State

      Smooth or slight.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

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

      Smooth or slight.
    • Weather

      Fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Variable mainly north or northeast, 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Variable mainly north or northeast, 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fog patches for a time.
    • Visibility

      Moderate or good, occasionally very poor for a time.

    Issued at 05:00 UTC on Tuesday 21st Apr

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Northerly or northeasterly 3 or 4, occasionally 5 in south.
    • Sea State

      Slight occasionally moderate in south.
    • Weather

      Fog patches.
    • Visibility

      Moderate or good, occasional very poor.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Northerly or northeasterly 3 or 4, occasionally 5 in south.
    • Sea State

      Slight, occasionally moderate in south.
    • Weather

      Fog patches for a time.
    • Visibility

      Moderate or good, occasionally very poor for a time.

    Issued at 05:00 UTC on Tuesday 21st Apr

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Easterly or northeasterly 5 or 6, occasionally 7 for a time around headlands.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 05:00 UTC on Tuesday 21st Apr

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      East or northeast 4 or 5, occasionally 6 later.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      East 4 or 5, occasionally 6 for a time.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 05:00 UTC on Tuesday 21st Apr

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

    Lyme Regis to Lands End including the Isles of Scilly

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    Strong wind warning

    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Easterly or northeasterly 4 or 5, occasionally 6 later.
    • Sea State

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

      Fair.
    • Visibility

      Good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Easterly 5 or 6, occasionally 7 for a time later.
    • Sea State

      Slight or moderate, occasionally rough west.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Tuesday 21st Apr

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

    Lands End to St Davids Head including the Bristol Channel

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    Strong wind warning

    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Easterly or northeasterly 4 or 5, occasionally 6 later.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Easterly veering southeasterly later, 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 05:00 UTC on Tuesday 21st Apr

  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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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Northeasterly 4 or 5, occasionally 3 in east.
    • Sea State

      Smooth or slight, occasionally moderate in south.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

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

      Smooth or slight, occasionally moderate in south.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Tuesday 21st Apr

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

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

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Variable 3 or less, becoming easterly 4 or 5 for a time in southwest.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Tuesday 21st Apr

  12. Isle of Man

    Isle of Man

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Variable 3 or less, becoming mainly north or northeast 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Northeast veering east, 3 or less.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Tuesday 21st Apr

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Variable 3 or less, becoming north 3 or 4 for a time.
    • Sea State

      Smooth or slight, occasionally moderate in north.
    • Weather

      Fog patches later.
    • Visibility

      Good, becoming moderate occasionally very poor later.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Variable 3 or less.
    • Sea State

      Smooth or slight, occasionally moderate in north.
    • Weather

      Fog patches.
    • Visibility

      Moderate occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  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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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Variable 3 or less, becoming northerly 3 or 4 for a time.
    • Sea State

      Smooth or slight, occasionally moderate in north.
    • Weather

      Fog patches later.
    • Visibility

      Good, becoming moderate occasionally very poor later.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Variable 3 or less.
    • Sea State

      Smooth or slight, occasionally moderate in north.
    • Weather

      Fog patches.
    • Visibility

      Moderate occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  15. Mull of Kintyre to Ardnamurchan Point

    Mull of Kintyre to Ardnamurchan Point

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Variable 3 or less, becoming north 3 or 4 for a time.
    • Sea State

      Slight or moderate.
    • Weather

      Fog patches and occasional drizzle later.
    • Visibility

      Good, becoming moderate occasionally poor later.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Variable 3 or less.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional drizzle, fog patches.
    • Visibility

      Moderate, occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  16. The Minch

    The Minch

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Southwesterly 3 or 4, occasionally 5 for a time in north, becoming variable 3 or less in south.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional drizzle, fog patches.
    • Visibility

      Moderate, occasionally very poor later.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Westerly or southwesterly 3 or 4 in north, variable 3 or less in south.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional drizzle, fog patches.
    • Visibility

      Moderate, occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  17. Ardnamurchan Point to Cape Wrath including the Outer Hebrides

    Ardnamurchan Point to Cape Wrath including the Outer Hebrides

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Southwesterly 4 or 5, becoming variable 3 or less in south.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional drizzle, fog patches.
    • Visibility

      Moderate, occasionally very poor later.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      Westerly or southwesterly 3 or 4 in north, variable 3 or less in south.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional drizzle, fog patches.
    • Visibility

      Moderate, occasionally very poor.

    Issued at 05:00 UTC on Tuesday 21st Apr

  18. Shetland Isles * warning

    Shetland Isles

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    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      West or southwest veering northwest, 3 or 4 occasionally 5 at first, backing west or southwest 4 or 5 later.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional drizzle, fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 05:00 UTC on Tuesday 21st Apr

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

    Gale Warnings in operation for Sea Area Fair Isle: Nil

    05:00 UTC Tue 21st Apr – 16:59 UTC Tue 21st Apr

    • Wind

      West or southwest 3 or 4 occasionally 5 at first, veering northwest later.
    • Sea State

      Slight or moderate, bur smooth in shelter east of shetland.
    • Weather

      Showers at first, drizzle or mist perhaps fog patches later.
    • Visibility

      Moderate or poor, perhaps very poor later.

    17:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      Northwest 3 or 4 backing west or southwest 4 or 5.
    • Sea State

      Slight or moderate, but slight in shelter east of shetland.
    • Weather

      Mainly fair, but perhaps mist or fog patches at first and later.
    • Visibility

      Moderate or poor, perhaps very poor at first and later.

    Issued at 05:00 UTC on Tuesday 21st Apr

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

    • Wind

      East to northeast 4 to 5, occasionally 6, increasing 5 to 6 by midnight.
    • Sea State

      Slight in the south until evening, otherwise moderate to rather rough.
    • Weather

      Fair or fine.
    • Visibility

      Good.

    05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

    • Wind

      East to northeast 5 to 6, increasing 7 in the north in the of the area late morning, decreasing 3 to 4 after midnight and veering southeast.
    • Sea State

      Moderate to rather rough, perhaps locally rough in the north of the area, becoming mainly slight by Thursday morning.
    • Weather

      Fair or fine.
    • Visibility

      Mainly good.

    Issued at 05:00 UTC on Tuesday 21st Apr

From Cape Wrath to Rattray Head including Orkney

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05:00 UTC Tue 21st Apr – 04:59 UTC Wed 22nd Apr

  • Wind

    Westerly 4 or 5, becoming variable 3 or 4 in south later.
  • Sea State

    Smooth or slight in southeast, slight or moderate in north.
  • Weather

    Occasional rain and fog patches.
  • Visibility

    Moderate or good, occasionally very poor.

05:00 UTC Wed 22nd Apr – 04:59 UTC Thu 23rd Apr

  • Wind

    Westerly 4 or 5, but variable mainly southwesterly 3 or 4 in south.
  • Sea State

    Smooth or slight in southeast, slight or moderate in north.
  • Weather

    Occasional rain, fog patches.
  • Visibility

    Moderate or good, occasionally very poor.

Issued at 05:00 UTC on Tuesday 21st Apr