Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A slow moving area of high pressure lies to the southwest of the United Kingdom. An area of low pressure over Denmark will move into the central North Sea by Thursday evening then into southeast England on Friday. Cold north or northwest winds will affect all areas.

* 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

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest veering north 6 to gale 8.

    • Sea State

      Mainly slight in inner Moray Firth, otherwise moderate or rough, but rough or very rough in north and east.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North 6 to gale 8, decreasing 3 or 4.

    • Sea State

      Mainly slight in inner Moray Firth, otherwise moderate or rough, but rough or very rough until later in north and east.

    • Weather

      Rain or squally showers, becoming mainly fair.

    • Visibility

      Moderate or good, occasionally poor.

    Issued at 17:00 UTC on Wednesday 22nd May

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwesterly veering northerly 5 to 7, but mainly 7 or gale 8 in north and east.

    • Sea State

      Mainly slight in firths of Forth and Tay otherwise moderate or rough, becoming rough or very rough.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North 6 to gale 8, veering northeast 4 later.

    • Sea State

      Rough or very rough, becoming moderate or rough.

    • Weather

      Rain or squally showers, becoming mainly fair later.

    • Visibility

      Moderate or good, occasionally poor.

    Issued at 17:00 UTC on Wednesday 22nd May

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 4 or 5 increasing 6 to gale 8.

    • Sea State

      Slight or moderate, becoming rough or very rough.

    • Weather

      Showers, becoming squally.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest veering north 6 to gale 8, increasing gale 8 or severe gale 9 for a time, then veering northeast 4 or 5 later.

    • Sea State

      Rough or very rough, becoming moderate or rough later.

    • Weather

      Rain or squally showers, becoming mainly fair later.

    • Visibility

      Moderate or good, occasionally poor.

    Issued at 17:00 UTC on Wednesday 22nd May

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Variable 2 or 3, occasionally 4, becoming northwesterly 5 to 7.

    • Sea State

      Slight or moderate, becoming rough.

    • Weather

      Showers, becoming squally.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest 6 to gale 8, becoming cyclonic then northeast, 5 to 7, decreasing mainly 4 or 5 later.

    • Sea State

      Rough or very rough, becoming moderate or rough later.

    • Weather

      Rain or squally showers.

    • Visibility

      Moderate or good, becoming moderate or poor.

    Issued at 17:00 UTC on Wednesday 22nd May

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Variable 3 or 4 becoming northwesterly 5 to 7, but becoming northerly or northwesterly 5 or 6 at times Wednesday evening in south.

    • Sea State

      Slight or moderate, becoming rough in north.

    • Weather

      Fair then showers, squally later.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwesterly 5 to 7 becoming cyclonic 4 or 5, then easterly or northeasterly 5 or 6, decreasing 4 later.

    • Sea State

      Slight or moderate in south, moderate or rough in north.

    • Weather

      Rain or squally showers.

    • Visibility

      Moderate or good, occasionally poor.

    Issued at 17:00 UTC on Wednesday 22nd May

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 4 or 5, increasing 6 or 7 for a time.

    • Sea State

      Smooth or slight, becoming slight or moderate.

    • Weather

      Showers later.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest becoming cyclonic then east or northeast, 4 or 5.

    • Sea State

      Slight or moderate.

    • Weather

      Showers, occasional rain later.

    • Visibility

      Moderate or good.

    Issued at 17:00 UTC on Wednesday 22nd May

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 4 or 5 increasing 5 to 7.

    • Sea State

      Smooth or slight, becoming slight or moderate.

    • Weather

      Showers later.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwesterly veering northeasterly, 5 to 7, decreasing mainly 4 or 5 for a time.

    • Sea State

      Slight or moderate.

    • Weather

      Showers, occasional rain later.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  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

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 5 to 7.

    • Sea State

      Slight or moderate, becoming moderate or rough in far west.

    • Weather

      Showers later.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest veering north 5 to 7.

    • Sea State

      Slight or moderate, but moderate or rough in far west.

    • Weather

      Squally showers.

    • Visibility

      Moderate or good.

    Issued at 17:00 UTC on Wednesday 22nd May

  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

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwesterly 4 or 5 increasing 5 or 6, occasionally 7 west of Barry and Minehead.

    • Sea State

      Slight or moderate, becoming moderate or rough west of the Gower and Ilfracombe.

    • Weather

      Fair then showers, squally in west.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North or northwest 5 to 7.

    • Sea State

      Slight in shelter, otherwise moderate or rough.

    • Weather

      Showers, squally at times, becoming mainly fair later.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

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

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

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest veering north 4 or 5, increasing 6 or 7, perhaps gale 8 later.

    • Sea State

      Slight, becoming moderate or rough.

    • Weather

      Showers becoming squally.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North 6 to gale 8, decreasing mainly 5 or 6 later.

    • Sea State

      Moderate or rough.

    • Weather

      Showers, squally at first, fair later.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  11. Great Ormes Head to the Mull of Galloway * warning

    Great Ormes Head to the Mull of Galloway

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 5 to 7.

    • Sea State

      Slight in shelter, otherwise moderate or rough.

    • Weather

      Showers becoming squally.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest veering north 5 to 7, occasionally gale 8 at first, veering northeast 4 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough, becoming mainly slight later.

    • Weather

      Showers, squally at first, fair later.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 5 or 6 increasing 6 or 7.

    • Sea State

      Moderate, occasionally rough later.

    • Weather

      Showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North or northwest 6 or 7 veering north or northeast 4 later.

    • Sea State

      Moderate or rough, becoming slight or moderate.

    • Weather

      Mainly fair.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 5 to 7, perhaps gale 8 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest veering north 6 to gale 8, decreasing 3 or 4 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough, becoming mainly slight later.

    • Weather

      Showers, squally at first, then fair.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

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

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

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 5 to 7, perhaps gale 8 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest veering north 6 to gale 8, decreasing 3 or 4 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough, becoming mainly slight later.

    • Weather

      Showers, squally at first, then fair.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest veering north 5 to 7, perhaps gale 8 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North or northwest 6 to gale 8, decreasing 3 or 4 later.

    • Sea State

      Slight in shelter, otherwise moderate or rough, becoming mainly slight later.

    • Weather

      Showers, squally at first, then fair.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  16. The Minch * warning

    The Minch

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest veering north 5 to 7, perhaps gale 8 later.

    • Sea State

      Slight in shelter otherwise moderate or rough, but becoming very rough in far north.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North 6 to gale 8, decreasing 3 or 4, becoming variable 3 or less later.

    • Sea State

      Slight in shelter otherwise moderate or rough, but very rough at first in far north, and becoming mainly slight later.

    • Weather

      Showers, squally at first, then fair.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd 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

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest veering north 5 to 7, perhaps gale 8 later.

    • Sea State

      Rough or very rough.

    • Weather

      Squally showers.

    • Visibility

      Good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      North 6 to gale 8, decreasing 3 or 4, becoming variable 3 or less later.

    • Sea State

      Rough or very rough, becoming moderate or rough.

    • Weather

      Showers, squally at first, then fair.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 5 to 7, veering north 6 to gale 8.

    • Sea State

      Moderate or rough, becoming rough or very rough.

    • Weather

      Rain or squally showers.

    • Visibility

      Moderate or good.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      --

    • Sea State

      --

    • Weather

      --

    • Visibility

      --

    Issued at 17:00 UTC on Wednesday 22nd May

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

    Gale Warnings in operation for Sea Area Fair Isle: Northerly gale force 8.

    17:00 UTC Wed 22nd May – 04:59 UTC Thu 23rd May

    • Wind

      Northwest 5 to 7 veering north 6 to gale 8.

    • Sea State

      Rough or very rough, but moderate just east of Shetland.

    • Weather

      Rain or showers.

    • Visibility

      Mainly good.

    05:00 UTC Thu 23rd May – 16:59 UTC Thu 23rd May

    • Wind

      North 6 to gale 8.

    • Sea State

      Rough or very rough.

    • Weather

      Showers.

    • Visibility

      Good.

    Issued at 17:00 UTC on Wednesday 22nd May

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

    • Wind

      Northwest 4 to 5, increasing 5 to 6 tonight and veering northwest to north.

    • Sea State

      Slight becoming moderate overnight, locally rather rough later.

    • Weather

      Isolated showers developing by morning, becoming more frequent in the afternoon.

    • Visibility

      Good, locally moderate in showers.

    17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

    • Wind

      Northwest to north 5 to 6, veering north by evening.

    • Sea State

      Rather rough, perhaps locally rough later.

    • Weather

      Scattered showers, then rain from Friday morning.

    • Visibility

      Good, locally moderate in showers, becoming moderate to poor in rain.

    Issued at 17:00 UTC on Wednesday 22nd May

Lyme Regis to Lands End including the Isles of Scilly

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Strong wind warning

17:00 UTC Wed 22nd May – 16:59 UTC Thu 23rd May

  • Wind

    Northwest 5 to 7.

  • Sea State

    Slight or moderate, becoming moderate or rough in far west.

  • Weather

    Showers later.

  • Visibility

    Good.

17:00 UTC Thu 23rd May – 16:59 UTC Fri 24th May

  • Wind

    Northwest veering north 5 to 7.

  • Sea State

    Slight or moderate, but moderate or rough in far west.

  • Weather

    Squally showers.

  • Visibility

    Moderate or good.

Issued at 17:00 UTC on Wednesday 22nd May

Arfordir a Môr