Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

An area of low pressure in the North Sea will slowly fill, with a transient ridge of high pressure building across the United Kingdom from the south on Saturday. An area of low pressure will move northeastwards to the north of Scotland on Sunday, bringing strong winds with gales in the northwest.

* 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 Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest 4 or 5, occasionally 6 later near Cape Wrath.
    • Sea State

      Moderate occasionally slight later.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Southwest 5 or 6, backing south 6 or 7, veering southwest 4 or 5 for a time later.
    • Sea State

      Slight or moderate, becoming moderate or rough.
    • Weather

      Rain at times.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Friday 29th Apr

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest, 4 or 5 occasionally 6 at first.
    • Sea State

      Moderate, occasionally slight later.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

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

      Slight or moderate, becoming moderate or rough.
    • Weather

      Fair, then rain at times.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Friday 29th Apr

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest 4 or 5 occasionally 6 at first, becoming variable 3 or less, becoming southwest 4 or 5 later.
    • Sea State

      Moderate, becoming slight later.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

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

      Slight becoming moderate.
    • Weather

      Fair, then rain at times.
    • Visibility

      Good, occasionally moderate.

    Issued at 23:00 UTC on Friday 29th Apr

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest 4 or 5 occasionally 6 at first, becoming variable 3 or less.
    • Sea State

      Moderate, becoming slight.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

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

      Slight, becoming moderate later.
    • Weather

      Fair, occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 23:00 UTC on Friday 29th Apr

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwesterly 4 or 5, occasionally 6 at first in north, becoming variable 3 or less.
    • Sea State

      Slight, occasionally moderate at first.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Variable 3 or less, becoming southerly or southwesterly 4 or 5.
    • Sea State

      Slight.
    • Weather

      Fair, occasionally rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 23:00 UTC on Friday 29th Apr

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

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

      Slight.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

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

      Slight.
    • Weather

      Fair, occasionally rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 23:00 UTC on Friday 29th Apr

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

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

      Slight.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Northwest 4 or 5, becoming variable 3 or less, becoming southwest 4 or 5 later.
    • Sea State

      Slight.
    • Weather

      Fair, occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 23:00 UTC on Friday 29th 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

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      North or northwest 4 or 5, occasionally 6 at first, backing west 3 or 4 later.
    • Sea State

      Slight, occasionally moderate for a time in west.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      West 3 or 4, backing southwest 4 or 5.
    • Sea State

      Slight occasionally moderate later in west.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th 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

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest later, 4 or 5, occasionally 6 at first.
    • Sea State

      Slight occasionally moderate for a time in west.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

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

      Slight becoming moderate.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  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

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest later, 4 or 5 occasionally 6 at first.
    • Sea State

      Slight.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Southwest 4 or 5, backing south 5 or 6, veering southwest 6 or 7 later.
    • Sea State

      Slight becoming moderate.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  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

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest later, 4 or 5, occasionally 6 for a time.
    • Sea State

      Slight.
    • Weather

      Showers, fair later.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Southwest 4 or 5, increasing 6 or 7.
    • Sea State

      Slight becoming moderate.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  12. Isle of Man

    Isle of Man

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    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

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

      Slight or moderate becoming smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      South or southwest 3 or 4, increasing 5 or 6 increasing 7 at times, decreasing 4 or 5 for a time later.
    • Sea State

      Smooth or slight, becoming moderate or rough.
    • Weather

      Fair then rain.
    • Visibility

      Good, becoming moderate occasionally poor.

    Issued at 23:00 UTC on Friday 29th Apr

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing south later, 5 or 6 decreasing 4 for a time.
    • Sea State

      Moderate.
    • Weather

      Showers, rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      South or southwest 5 or 6, increasing 7 at times.
    • Sea State

      Moderate, becoming rough later in north.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  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

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwesterly backing southerly later, 5 or 6 decreasing 4 for a time.
    • Sea State

      Moderate.
    • Weather

      Showers, rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Southerly or southwesterly 5 or 6, increasing 7 at times.
    • Sea State

      Moderate, becoming rough later in north.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing south later, 5 or 6, decreasing 4 for a time, occasionally 7 later.
    • Sea State

      Moderate.
    • Weather

      Showers, rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      South or southwest 5 to 7.
    • Sea State

      Moderate becoming rough later.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  16. The Minch * warning

    The Minch

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest 5 or 6, backing south 6 to gale 8 later.
    • Sea State

      Slight or moderate.
    • Weather

      Showers, rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      South 6 to gale 8, veering west 4 or 5, backing south or southwest 6 to gale 8 later.
    • Sea State

      Moderate or rough.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  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 Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest 5 or 6, backing south 6 to gale 8 later.
    • Sea State

      Moderate, occasionally rough later.
    • Weather

      Showers, rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      South 6 to gale 8, veering west 4 or 5, backing south or southwest 6 to gale 8 later.
    • Sea State

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

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Friday 29th Apr

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest 4 or 5, backing south 5 or 6 later.
    • Sea State

      Moderate or rough.
    • Weather

      Showers.
    • Visibility

      Good.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 23:00 UTC on Friday 29th Apr

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

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

    23:00 UTC Fri 29th Apr – 10:59 UTC Sat 30th Apr

    • Wind

      Northwest backing southwest 4, increasing 5 later in the west.
    • Sea State

      Moderate or rough.
    • Weather

      Mainly fair, perhaps isolated shower.
    • Visibility

      Good.

    11:00 UTC Sat 30th Apr – 22:59 UTC Sat 30th Apr

    • Wind

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

      Moderate, becoming rough.
    • Weather

      Mainly fair, perhaps isolated shower.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 29th Apr

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

    • Wind

      North 4 to 5, occasionally 6 until mid-morning, backing northwest by afternoon, decreasing 3 to 4 towards midnight.
    • Sea State

      Slight to moderate, perhaps rather rough in the south until afternoon.
    • Weather

      Isolated showers.
    • Visibility

      Good, occasionally moderate in showers.

    23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

    • Wind

      Northwest 3 to 4, decreasing 2 to 3 and backing west to southwest around dawn, increasing 3 to 4 by afternoon and 4 to 5 by evening.
    • Sea State

      Slight to moderate, increasing moderate to rather rough by Monday.
    • Weather

      Patchy light rain or drizzle spreading from the west later Sunday afternoon.
    • Visibility

      Good, locally moderate to poor in rain and drizzle.

    Issued at 23:00 UTC on Friday 29th Apr

Lyme Regis to Lands End including the Isles of Scilly

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Strong wind warning

23:00 UTC Fri 29th Apr – 22:59 UTC Sat 30th Apr

  • Wind

    North or northwest 4 or 5, occasionally 6 at first, backing west 3 or 4 later.
  • Sea State

    Slight, occasionally moderate for a time in west.
  • Weather

    Showers, fair later.
  • Visibility

    Good.

23:00 UTC Sat 30th Apr – 22:59 UTC Sun 1st May

  • Wind

    West 3 or 4, backing southwest 4 or 5.
  • Sea State

    Slight occasionally moderate later in west.
  • Weather

    Occasional rain.
  • Visibility

    Moderate or good.

Issued at 23:00 UTC on Friday 29th Apr