Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A cold and showery westerly airflow will affect most areas through Monday and Tuesday. A ridge of high pressure will build from the southwest on Wednesday.

* 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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Or southwest 5 to 7, occasionally gale 8 later.
    • Sea State

      Slight in shelter at first, otherwise moderate or rough, occasionally very rough north and west of Orkney.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      West 6 to gale 8, backing southwest 4 or 5 later.
    • Sea State

      Moderate or rough, but very rough until later north and west of Orkney.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Southwest 6 to gale 8, increasing gale 8 or severe gale 9 later.
    • Sea State

      Slight in shelter, otherwise moderate or rough.
    • Weather

      Wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwest 6 to gale 8, occasionally severe gale 9 at first, veering west 4 or 5 later.
    • Sea State

      Slight in shelter, otherwise moderate or rough.
    • Weather

      Wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Southwest 5 to 7, perhaps gale 8 later.
    • Sea State

      Slight near shore, otherwise moderate.
    • Weather

      Wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwest, veering west, 5 to 7, veering northwest 4 or 5 later.
    • Sea State

      Slight near shore, otherwise moderate.
    • Weather

      Wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 5 to 7, occasionally gale 8 at first.
    • Sea State

      Slight in shelter otherwise moderate.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwest, veering west, 5 to 7, veering northwest 4 or 5 later.
    • Sea State

      Slight in shelter, otherwise moderate.
    • Weather

      Squally wintry showers at first.
    • Visibility

      Good, occasionally poor at first.

    Issued at 18:00 UTC on Monday 2nd Mar

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Westerly or southwesterly 5 to 7, increasing gale 8 at times.
    • Sea State

      Slight in shelter otherwise moderate.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwesterly 5 to 7, veering northwesterly 4 or 5 later.
    • Sea State

      Slight in shelter otherwise moderate.
    • Weather

      Squally wintry showers at first.
    • Visibility

      Good, occasionally poor at first.

    Issued at 18:00 UTC on Monday 2nd Mar

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 5 to 7, occasionally gale 8 until later.
    • Sea State

      Moderate, occasionally rough.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Westerly or southwesterly 5 to 7, veering northwesterly 4 or 5 later.
    • Sea State

      Moderate, occasionally rough.
    • Weather

      Squally wintry showers at first.
    • Visibility

      Good, occasionally poor at first.

    Issued at 18:00 UTC on Monday 2nd Mar

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 5 to 7, increasing gale 8 at times.
    • Sea State

      Slight in shelter, otherwise moderate, occasionally rough.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Westerly or southwesterly 5 to 7, veering northwesterly 4 or 5 later.
    • Sea State

      Slight in shelter, otherwise moderate, occasionally rough.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West 6 to gale 8.
    • Sea State

      Slight in sheltered east, otherwise moderate or rough, and very rough in far west.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      West 6 to gale 8, veering northwest 4 or 5 later.
    • Sea State

      Slight in sheltered east, otherwise moderate or rough, and very rough in far west.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West 6 to gale 8.
    • Sea State

      Slight or moderate in east, rough or very rough in west.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      West 6 to gale 8, veering northwest 4 or 5 later.
    • Sea State

      Very rough becoming rough in west, slight or moderate in east.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 6 to gale 8.
    • Sea State

      Moderate or rough, occasionally very rough in far south.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwest, veering west, 6 to gale 8, decreasing 4 or 5 later.
    • Sea State

      Moderate or rough, becoming slight or slight or moderate.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 6 to gale 8.
    • Sea State

      Slight in shelter, otherwise moderate, occasionally rough.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      West or southwest 6 to gale 8, decreasing 4 or 5 later.
    • Sea State

      Moderate or rough, becoming slight for a time.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 6 to gale 8, veering northwest 5 or 6 later.
    • Sea State

      Moderate or rough.
    • Weather

      Showers.
    • Visibility

      Moderate or good.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      West or southwest 6 to gale 8, veering west or northwest 5 or 6 later.
    • Sea State

      Moderate or rough.
    • Weather

      Showers.
    • Visibility

      Mainly good.

    Issued at 18:00 UTC on Monday 2nd Mar

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Southwesterly 6 to gale 8, occasionally severe gale 9 later in north.
    • Sea State

      Slight in shelter, otherwise moderate or rough, but very rough becoming high in northwest.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwesterly, veering westerly, 6 to gale 8, occasionally severe gale 9 in north, then decreasing 5 or 6 later.
    • Sea State

      Slight in shelter, otherwise moderate or rough, and very rough or high in northwest.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Westerly, backing southwesterly, 6 to gale 8, occasionally severe gale 9 later.
    • Sea State

      Slight in shelter, otherwise moderate or rough.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Southwesterly 7 to severe gale 9, veering northwesterly 6 to gale 8.
    • Sea State

      Slight in shelter, otherwise moderate or rough, becoming very rough for a time in far northwest.
    • Weather

      Squally wintry showers until later.
    • Visibility

      Good, occasionally poor.

    Issued at 18:00 UTC on Monday 2nd Mar

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 6 to gale 8, occasionally severe gale 9 later.
    • Sea State

      Slight or moderate in shelter, otherwise rough or very rough, becoming high or very high.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, becoming moderate or poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Westerly 7 to severe gale 9, veering northwest 5 or 6, then backing southwest later.
    • Sea State

      Moderate in shelter, otherwise high or very high, becoming rough or very rough.
    • Weather

      Squally wintry showers, occasional rain later.
    • Visibility

      Moderate or poor, becoming good.

    Issued at 18:00 UTC on Monday 2nd Mar

  16. The Minch * warning

    The Minch

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 6 to gale 8, increasing severe gale 9 for a time, then veering northwest later.
    • Sea State

      Very rough in far north and far south, otherwise slight or moderate, occasionally rough later.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, becoming moderate or poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Northwest 6 to gale 8, decreasing 4 or 5, then backing southwest 5 to 7.
    • Sea State

      Rough or very rough in far north and far south, otherwise slight or moderate.
    • Weather

      Squally wintry showers, occasional rain later.
    • Visibility

      Moderate or poor, becoming good.

    Issued at 18:00 UTC on Monday 2nd Mar

  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

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West or southwest 6 to gale 8, increasing severe gale 9 for a time, then veering northwest later.
    • Sea State

      Rough or very rough, becoming high or very high.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, becoming moderate or poor.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      Northwest 6 to gale 8, decreasing 4 or 5, then backing southwest 5 to 7.
    • Sea State

      High or very high, becoming rough or very rough.
    • Weather

      Squally wintry showers, occasional rain later.
    • Visibility

      Moderate or poor, becoming good.

    Issued at 18:00 UTC on Monday 2nd Mar

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Southwest 5 to 7, backing south 4 or 5 later.
    • Sea State

      Moderate in sheltered east, otherwise rough becoming very rough.
    • Weather

      Wintry showers until later.
    • Visibility

      Good, occasionally moderate.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 18:00 UTC on Monday 2nd Mar

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

    Gale Warnings in operation for Sea Area Fair Isle: Nil

    18:00 UTC Mon 2nd Mar – 05:59 UTC Tue 3rd Mar

    • Wind

      Southwest 5 to 7.
    • Sea State

      Rough becoming very rough in west, moderate in east.
    • Weather

      Wintry showers.
    • Visibility

      Moderate or good.

    06:00 UTC Tue 3rd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      Southwest 5 or 6, occasionally 7 at first, backing south 4 or 5 later.
    • Sea State

      Very rough in west, moderate in east.
    • Weather

      Showers dying out.
    • Visibility

      Mainly good.

    Issued at 18:00 UTC on Monday 2nd Mar

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

    • Wind

      West 5 to 6, occasionally 7 with gusts to 50kt, especially near showers, backing southwest for a time overnight.
    • Sea State

      Rather rough to rough becoming moderate for a time in the south overnight.
    • Weather

      Scattered rain or hail showers risk of thunder.
    • Visibility

      Good except in showers.

    18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

    • Wind

      West 5 to 6 with gusts to 40kt, veering northwest overnight, decreasing 4 to 5 Wednesday morning, further veering northerly by evening.
    • Sea State

      Rather rough to rough becoming moderate with swell.
    • Weather

      Isolated rain or hail showers overnight.
    • Visibility

      Good except in showers.

    Issued at 18:00 UTC on Monday 2nd Mar

From Cape Wrath to Rattray Head including Orkney

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Strong wind warning

18:00 UTC Mon 2nd Mar – 17:59 UTC Tue 3rd Mar

  • Wind

    Or southwest 5 to 7, occasionally gale 8 later.
  • Sea State

    Slight in shelter at first, otherwise moderate or rough, occasionally very rough north and west of Orkney.
  • Weather

    Squally wintry showers.
  • Visibility

    Good, occasionally poor.

18:00 UTC Tue 3rd Mar – 17:59 UTC Wed 4th Mar

  • Wind

    West 6 to gale 8, backing southwest 4 or 5 later.
  • Sea State

    Moderate or rough, but very rough until later north and west of Orkney.
  • Weather

    Squally wintry showers.
  • Visibility

    Good, occasionally poor.

Issued at 18:00 UTC on Monday 2nd Mar