Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

Low pressure over the North Sea at first will move slowly west, affecting many coastal areas for a time before a large area of high pressure to the north of Scotland extends south and exerts its settling influence in all areas.

* 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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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      East or northeast 3 or 4, occasionally 5 near Cape Wrath, becoming variable 3 or less later.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

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

      Moderate at times in northwest, otherwise slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  2. Rattray Head to Berwick on Tweed

    Rattray Head to Berwick on Tweed

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      North or northeast 4 or 5, becoming variable 3 or 4.
    • Sea State

      Slight.
    • Weather

      Occasional rain for a time.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Variable 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      North or northeast 4 or 5, veering southeast 3 or 4.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain at first.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

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

      Smooth becoming slight later.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      North veering southeast 4 or 5, becoming variable 3 later.
    • Sea State

      Moderate becoming slight.
    • Weather

      Occasional rain at first.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      East or northeast 3 or 4, becoming variable 3 or less later.
    • Sea State

      Smooth becoming slight later.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Northerly 5 at first in north, otherwise variable 3 or 4.
    • Sea State

      Moderate at first in north, otherwise slight, occasionally smooth.
    • Weather

      Occasional rain at first.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Northeasterly 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Easterly or northeasterly 3 or 4, increasing 5 at times later.
    • Sea State

      Slight, occasionally smooth.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Easterly or northeasterly 4 or 5, increasing 6 for a time in east.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

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

      Slight or moderate, becoming smooth at times near shore.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      East or northeast 3 or 4, increasing 5 for a time.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  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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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      East or northeast 4 or 5, becoming variable 3 for a time.
    • Sea State

      Rough until later in far southwest, otherwise slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      East or northeast 3 or 4, increasing 5 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  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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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      East or northeast 4 or 5, becoming variable 3 for a time.
    • Sea State

      Slight or moderate, becoming rough for a time in southwest.
    • Weather

      Fair.
    • Visibility

      Good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      East or northeast 4 or 5, becoming variable 3 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th 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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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      North or northeast 4 or 5, becoming variable 3 or less.
    • Sea State

      Slight occasionally moderate, becoming mainly smooth in north.
    • Weather

      Fair.
    • Visibility

      Good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Variable 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      North or northeast 4 or 5, becoming variable 3 or less later.
    • Sea State

      Slight, becoming smooth later.
    • Weather

      Occasional rain for a time.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Variable 3 or less, occasionally 4 at first.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  12. Isle of Man

    Isle of Man

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      North or northeast 4 or 5, becoming variable 3 or less later.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Variable 3 or less.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable 3 or 4, becoming easterly or northeasterly 5 for a time.
    • Sea State

      Smooth or slight, occasionally moderate in far north.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

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

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th 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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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable 3 or 4, becoming easterly or northeasterly 5 for a time.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Variable 3 or less, becoming southeasterly 4 or 5 for a time in the North Channel.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  15. Mull of Kintyre to Ardnamurchan Point

    Mull of Kintyre to Ardnamurchan Point

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable 3 or less, becoming east or southeast 4 or 5.
    • Sea State

      Slight or moderate, occasionally rough at first in northwest.
    • Weather

      Occasional rain later in south.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      South or southeast 3 or 4, becoming variable 3 or less.
    • Sea State

      Slight or moderate, becoming smooth later in shelter.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  16. The Minch

    The Minch

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable 3 or 4, becoming southeast 4 or 5 for a time later.
    • Sea State

      Smooth or slight, occasionally moderate in far south.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Southerly or southwesterly 3 or 4, increasing 5 at times.
    • Sea State

      Moderate at first in far south, otherwise smooth or slight.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  17. Ardnamurchan Point to Cape Wrath including the Outer Hebrides

    Ardnamurchan Point to Cape Wrath including the Outer Hebrides

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable 3 or 4, becoming easterly 5 for a time at first in far north, then becoming southeasterly 5 for a time later in far south.
    • Sea State

      Moderate, occasionally rough at first.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Southerly or southwesterly 3 or 4, increasing 5 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    Issued at 11:00 UTC on Sunday 19th Apr

  18. Shetland Isles * warning

    Shetland Isles

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    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable, mainly northeast, 3 or 4, occasionally 5 at first in far east.
    • Sea State

      Moderate, but slight to east of Shetland.
    • Weather

      Fair.
    • Visibility

      Good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 11:00 UTC on Sunday 19th Apr

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

    Gale Warnings in operation for Sea Area Fair Isle: Nil

    11:00 UTC Sun 19th Apr – 22:59 UTC Sun 19th Apr

    • Wind

      Variable, mainly northeasterly, 3 or 4, occasionally 5 in east.
    • Sea State

      Moderate, but slight in east.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Variable, mainly northeasterly, 3 or 4.
    • Sea State

      Moderate, but slight in east.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

    • Wind

      Northeast 4 to 5, occasionally 6 with gusts to 35kt in the north of the area this afternoon.
    • Sea State

      Slight to moderate in the south, moderate to rather rough in the north.
    • Weather

      Fair or fine.
    • Visibility

      Good.

    11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

    • Wind

      Northeast to east 4 to 5.
    • Sea State

      Slight to moderate with swell.
    • Weather

      Fair or fine.
    • Visibility

      Good.

    Issued at 11:00 UTC on Sunday 19th Apr

Lyme Regis to Lands End including the Isles of Scilly

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11:00 UTC Sun 19th Apr – 10:59 UTC Mon 20th Apr

  • Wind

    East or northeast 4 or 5, becoming variable 3 for a time.
  • Sea State

    Rough until later in far southwest, otherwise slight or moderate.
  • Weather

    Fair.
  • Visibility

    Moderate or good.

11:00 UTC Mon 20th Apr – 10:59 UTC Tue 21st Apr

  • Wind

    East or northeast 3 or 4, increasing 5 at times.
  • Sea State

    Slight or moderate.
  • Weather

    Fair.
  • Visibility

    Moderate or good.

Issued at 11:00 UTC on Sunday 19th Apr