Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A ridge of high pressure will build across the United Kingdom from the south. However, pressure will fall to the north of Scotland on Tuesday.

* 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

    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Variable 3 or less, becoming westerly or northwesterly 3 or 4, backing southerly or southwesterly 5 or 6 later, occasionally 7 in northwest.
    • Sea State

      Smooth or slight, becoming slight or moderate.
    • Weather

      Showers, rain later.
    • Visibility

      Good, becoming moderate occasionally poor later.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Southerly or southwesterly 5 or 6, occasionally 7 in northwest.
    • Sea State

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

      Occasional rain.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Sunday 28th Aug

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Variable 3 or less, becoming southwest 5 or 6 later.
    • Sea State

      Slight, occasionally moderate later.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Southwest backing south, 5 or 6, decreasing 4 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain at first.
    • Visibility

      Good, occasionally moderate at first.

    Issued at 23:00 UTC on Sunday 28th Aug

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Variable becoming west 3 or 4, backing southwest 4 or 5 later.
    • Sea State

      Slight.
    • Weather

      Showers at first.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

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

      Slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Sunday 28th Aug

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      West or northwest 3 or 4.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      West backing south, 3 or 4.
    • Sea State

      Slight, occasionally smooth later.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Sunday 28th Aug

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northerly or northwesterly, but southwesterly at first in south, 3 or 4, becoming variable 3 or less later.
    • Sea State

      Slight.
    • Weather

      Thundery showers at first, then fair.
    • Visibility

      Good, occasionally poor at first.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Variable 3 or less, becoming southerly or southeasterly 3 or 4 later.
    • Sea State

      Slight, occasionally smooth later.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Sunday 28th Aug

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Westerly 4 or 5, veering northwesterly 3 or 4, becoming variable 3 or less later.
    • Sea State

      Moderate becoming slight.
    • Weather

      Showers at first.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Variable 3 or less.
    • Sea State

      Slight, becoming smooth.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Sunday 28th Aug

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

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

      Moderate becoming slight.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

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

      Slight becoming smooth.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Sunday 28th Aug

  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 Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      West or northwest 3 or 4, occasionally 5 at first, becoming variable 3 or less later.
    • Sea State

      Moderate becoming slight.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

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

      Slight, occasionally moderate later in west.
    • Weather

      Mainly fair.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  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 Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Westerly or northwesterly 3 or 4, occasionally 5 until later.
    • Sea State

      Slight, occasionally moderate at first.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Westerly or southwesterly 3 or 4, occasionally 5 later in northwest.
    • Sea State

      Slight, occasionally moderate later in west.
    • Weather

      Mainly fair.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  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 Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwesterly 3 or 4, becoming variable 3 or less, becoming southwesterly 4 or 5 later.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

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

      Slight becoming moderate.
    • Weather

      Mainly fair.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwest backing southwest, 4 or 5.
    • Sea State

      Slight, occasionally smooth for a time later.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Southwest 4 or 5, occasionally 6 later.
    • Sea State

      Slight becoming moderate.
    • Weather

      Mainly fair.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  12. Isle of Man

    Isle of Man

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwest backing south or southwest later, 3 or 4, occasionally 5 at first.
    • Sea State

      Slight, becoming smooth or slight.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      South or southwest 3 or 4, increasing 5 or 6 later.
    • Sea State

      Smooth or slight, becoming moderate later.
    • Weather

      Mainly fair.
    • Visibility

      Mainly god.

    Issued at 23:00 UTC on Sunday 28th Aug

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwest backing south or southwest, 4 or 5.
    • Sea State

      Slight, occasionally moderate later.
    • Weather

      Fair, then rain for a time.
    • Visibility

      Good, occasionally moderate for a time.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      South or southwest 4 or 5, occasionally 6 later.
    • Sea State

      Moderate, occasionally slight at first, becoming rough later in northwest.
    • Weather

      Mainly fair.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  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 Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwesterly backing southerly or southwesterly, 4 or 5.
    • Sea State

      Slight, occasionally moderate later.
    • Weather

      Fair, then rain for a time.
    • Visibility

      Good, occasionally moderate for a time.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Southerly or southwesterly 4 or 5, occasionally 6 later.
    • Sea State

      Moderate, occasionally slight at first.
    • Weather

      Mainly fair.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwesterly backing westerly 3 or 4, backing southwesterly 5 or 6 later.
    • Sea State

      Slight, becoming moderate later.
    • Weather

      Fair, then occasional rain for a time.
    • Visibility

      Good, occasionally moderate for a time.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Southerly or southwesterly 5 or 6, occasionally 7 later in north.
    • Sea State

      Moderate, occasionally rough later.
    • Weather

      Rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 23:00 UTC on Sunday 28th Aug

  16. The Minch * warning

    The Minch

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    Strong wind warning

    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Variable 3 or less, becoming south or southwest 4 or 5, increasing 6 or 7 later.
    • Sea State

      Smooth or slight, becoming slight or moderate.
    • Weather

      Fair, then rain for a time.
    • Visibility

      Moderate or good, occasionally poor for a time.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      South or southwest 6 or 7, perhaps gale 8 later.
    • Sea State

      Slight or moderate, becoming moderate or rough.
    • Weather

      Rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 23:00 UTC on Sunday 28th Aug

  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 Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Variable 3 or less, becoming south or southwest 4 or 5, increasing 6 or 7 later.
    • Sea State

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

      Fair, then rain for a time.
    • Visibility

      Moderate or good, occasionally poor for a time.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      South or southwest 6 or 7, perhaps gale 8 later.
    • Sea State

      Moderate or rough, becoming rough or very rough later.
    • Weather

      Rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 23:00 UTC on Sunday 28th Aug

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Variable 3 or less, becoming west 3 or 4, backing south 5 or 6 later.
    • Sea State

      Slight, becoming moderate later.
    • Weather

      Showers, rain later.
    • Visibility

      Good, becoming moderate later.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 23:00 UTC on Sunday 28th Aug

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

    Gale Warnings in operation for Sea Area Fair Isle: Nil

    23:00 UTC Sun 28th Aug – 10:59 UTC Mon 29th Aug

    • Wind

      Variable 3 or less becoming west 3 or 4.
    • Sea State

      Slight, occasionally moderate at first in west.
    • Weather

      Isolated showers.
    • Visibility

      Mainly good.

    11:00 UTC Mon 29th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      West 3 or 4 backing south 5 or 6.
    • Sea State

      Slight becoming moderate.
    • Weather

      Rain later.
    • Visibility

      Good becoming moderate.

    Issued at 23:00 UTC on Sunday 28th Aug

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

    • Wind

      Northwest 4 to 5, perhaps 6 at first, decreasing 3 to 4 around dawn.
    • Sea State

      Moderate, locally rather rough, decreasing slight to moderate in the morning.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

    • Wind

      Northwest 2 to 4, becoming northeast or variable 1 to 3 by Wednesday morning, occasionally 4 in the afternoon.
    • Sea State

      Smooth or slight, with a low swell at first.
    • Weather

      Fair or fine.
    • Visibility

      Good.

    Issued at 23:00 UTC on Sunday 28th Aug

Selsey Bill to Lyme Regis

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23:00 UTC Sun 28th Aug – 22:59 UTC Mon 29th Aug

  • Wind

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

    Moderate becoming slight.
  • Weather

    Fair.
  • Visibility

    Good.

23:00 UTC Mon 29th Aug – 22:59 UTC Tue 30th Aug

  • Wind

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

    Slight becoming smooth.
  • Weather

    Fair.
  • Visibility

    Good.

Issued at 23:00 UTC on Sunday 28th Aug