Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

High pressure will slowly decline, but conditions should remain quiet in all areas. However, the weather is expected to become rather more changeable across northern and western 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

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southerly or southwesterly 4 or 5, occasionally 6 in far east, but becoming variable 3 or 4 at times.
    • Sea State

      Smooth in Moray Firth, otherwise slight or moderate, occasionally rough in far northwest.
    • Weather

      Fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Mainly southerly, veering westerly later, 4 or 5, becoming variable 3 or less at times.
    • Sea State

      Smooth in Moray Firth, otherwise slight or moderate, occasionally rough at first in far northwest.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 00:00 UTC on Saturday 21st Jan

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southerly 4 or 5, occasionally 6 in far north, becoming variable 3 at times in south.
    • Sea State

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

      Mainly fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Southerly 4 or 5, veering westerly 3 or 4 later.
    • Sea State

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

      Occasional drizzle.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Variable, mainly south, 3 or 4, occasionally 5 later.
    • Sea State

      Smooth becoming slight.
    • Weather

      Occasional drizzle later.
    • Visibility

      Good, occasionally moderate later.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      South veering southwest 4 or 5, veering west 3 or 4 later.
    • Sea State

      Slight, occasionally moderate, becoming smooth or slight later.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeast veering south later, 3 or 4.
    • Sea State

      Slight, occasionally moderate later.
    • Weather

      Occasional drizzle for a time.
    • Visibility

      Moderate or good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      South veering southwest 3 or 4, increasing 5 at times.
    • Sea State

      Slight, occasionally moderate, becoming smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

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

      Slight, becoming smooth or slight.
    • Weather

      Fair.
    • Visibility

      Mainly good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Variable, mainly southwesterly at first, 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Easterly, veering southerly or southeasterly, 3 or 4, occasionally 5 at first.
    • Sea State

      Slight, occasionally moderate at first in west, becoming smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Variable, mainly southerly or southeasterly 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      East or southeast, but mainly northeast inshore, becoming variable, mainly south later, 3 or 4.
    • Sea State

      Slight, occasionally moderate at first, becoming smooth in shelter.
    • Weather

      Fair.
    • Visibility

      Mainly good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Variable, mainly south or southeast, 3 or 4.
    • Sea State

      Smooth in shelter, otherwise slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  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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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeast veering south 3 or 4, occasionally 5 later.
    • Sea State

      Slight or moderate, becoming smooth at times inshore east of the Lizard.
    • Weather

      Showers later in far west.
    • Visibility

      Mainly good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

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

      Smooth at times inshore east of the Lizard, otherwise slight or moderate.
    • Weather

      Showers at first, mainly in west.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  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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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeast veering south later, 3 or 4, increasing 5 at times.
    • Sea State

      Slight in far east, otherwise moderate.
    • Weather

      Showers later, mainly in west.
    • Visibility

      Good, occasionally moderate.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      South or southwest 3 or 4, occasionally 5 at first.
    • Sea State

      Slight in far east, otherwise moderate.
    • Weather

      Showers, mainly in west.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  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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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

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

      Slight or moderate, becoming smooth or slight in north.
    • Weather

      Showers later in south.
    • Visibility

      Mainly good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Variable, mainly southeast, veering southwest 3 or 4, occasionally 5 at first.
    • Sea State

      Slight or moderate in south, smooth or slight in north.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  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

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeasterly 4 or 5, increasing 6 at times until later in northwest.
    • Sea State

      Slight or moderate for a time in northwest, otherwise smooth or slight.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Southerly or southeasterly 4 or 5, veering westerly or southwesterly 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeast 4 or 5, increasing 6 at times, veering south or southeast 3 or 4 later.
    • Sea State

      Smooth or slight, occasionally moderate at first.
    • Weather

      Showers later.
    • Visibility

      Good, occasionally moderate later.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

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

      Smooth or slight.
    • Weather

      Showers.
    • Visibility

      Good, occasionally moderate.

    Issued at 00:00 UTC on Saturday 21st Jan

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeasterly 4 or 5, occasionally 6 in North Channel, veering southerly 3 or 4 later.
    • Sea State

      Slight or moderate, becoming smooth or slight later in east.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Variable, mainly southerly 3 or 4.
    • Sea State

      Smooth or slight in east, slight or moderate in north.
    • Weather

      Showers, mainly in east.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  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

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeasterly 4 or 5, occasionally 6 in North Channel, veering southerly 3 or 4 later.
    • Sea State

      Slight or moderate until later in North Channel, otherwise smooth or slight.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Variable, mainly southerly 3 or 4.
    • Sea State

      Smooth or slight, occasionally moderate near Mull of Kintyre.
    • Weather

      Showers.
    • Visibility

      Moderate or good.

    Issued at 00:00 UTC on Saturday 21st Jan

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      South 5 or 6, decreasing 4 at times later.
    • Sea State

      Slight or moderate in southeast, moderate or rough in northwest.
    • Weather

      Fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

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

      Moderate or rough for a time in northwest, otherwise slight or moderate.
    • Weather

      Showers.
    • Visibility

      Mainly good.

    Issued at 00:00 UTC on Saturday 21st Jan

  16. The Minch * warning

    The Minch

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    Strong wind warning

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      South 5 or 6.
    • Sea State

      Slight or moderate, occasionally rough in far south.
    • Weather

      Fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

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

      Slight or moderate, occasionally rough at first in far south, becoming smooth in central areas.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 00:00 UTC on Saturday 21st Jan

  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

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      South 5 or 6.
    • Sea State

      Moderate or rough.
    • Weather

      Fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

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

      Moderate or rough.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 00:00 UTC on Saturday 21st Jan

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      South or southwest 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate in east and south, moderate or rough in north and west.
    • Weather

      Fair.
    • Visibility

      Good.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 00:00 UTC on Saturday 21st Jan

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

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

    00:00 UTC Sat 21st Jan – 11:59 UTC Sat 21st Jan

    • Wind

      Southerly or southwesterly 5 or 6, decreasing 4 at times, mainly in southeast.
    • Sea State

      Slight or moderate in south and east, moderate or rough in north and west.
    • Weather

      Mainly fair.
    • Visibility

      Mainly good.

    12:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southerly or southwesterly 5 or 6, decreasing 4 at times, mainly in southeast.
    • Sea State

      Slight or moderate in south and east, moderate or rough in north and west.
    • Weather

      Mainly fair.
    • Visibility

      Mainly good.

    Issued at 00:00 UTC on Saturday 21st Jan

  19. The Channel Islands

    The Channel Islands

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    00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

    • Wind

      Southeasterly 2 to 4, perhaps occasionally 5 in the north of the area at first, locally variable 1 to 3 from dawn.
    • Sea State

      Slight.
    • Weather

      Fair or fine becoming fair to cloudy.
    • Visibility

      Good, occasionally moderate.

    00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

    • Wind

      Southeasterly or variable 1 to 3.
    • Sea State

      Smooth or slight with a low swell.
    • Weather

      Fair to cloudy.
    • Visibility

      Good, occasionally moderate.

    Issued at 00:00 UTC on Saturday 21st Jan

The Channel Islands

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00:00 UTC Sat 21st Jan – 23:59 UTC Sat 21st Jan

  • Wind

    Southeasterly 2 to 4, perhaps occasionally 5 in the north of the area at first, locally variable 1 to 3 from dawn.
  • Sea State

    Slight.
  • Weather

    Fair or fine becoming fair to cloudy.
  • Visibility

    Good, occasionally moderate.

00:00 UTC Sun 22nd Jan – 23:59 UTC Sun 22nd Jan

  • Wind

    Southeasterly or variable 1 to 3.
  • Sea State

    Smooth or slight with a low swell.
  • Weather

    Fair to cloudy.
  • Visibility

    Good, occasionally moderate.

Issued at 00:00 UTC on Saturday 21st Jan