Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

High pressure will dominate the weather across the United Kingdom over the next few days, bringing light winds to many areas away from the far north. Meanwhile, a weakening frontal zone remain slow-moving across the British Isles, bringing poor visibility at times.

* 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

    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Southwesterly 4 or 5, decreasing 3 at times, but occasionally 6 in far northwest.
    • Sea State

      Moderate or rough in northwest, slight or moderate in southeast.
    • Weather

      Occasional rain or drizzle, fog patches in far northwest.
    • Visibility

      Moderate or good, occasionally very poor in far northwest.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southwesterly 4 or 5, occasionally 6 in northwest, then increasing 7 or gale 8 later in far northwest.
    • Sea State

      Slight in southeast, otherwise moderate or rough, occasionally very rough later in far northwest.
    • Weather

      Occasional rain or drizzle at first.
    • Visibility

      Good, occasionally moderate at first.

    Issued at 12:00 UTC on Monday 16th Jan

  2. Rattray Head to Berwick on Tweed

    Rattray Head to Berwick on Tweed

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      West or southwest 4 or 5, becoming variable 3 or less at times.
    • Sea State

      Slight, occasionally moderate in east.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southwest 4 or 5.
    • Sea State

      Slight.
    • Weather

      Occasional rain or drizzle at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 12:00 UTC on Monday 16th Jan

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Southerly or southwesterly 4 or 5, occasionally variable 3 at first in north.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

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

      Smooth or slight.
    • Weather

      Occasional rain or drizzle at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 12:00 UTC on Monday 16th Jan

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Southerly 4 or 5, occasionally 3 in south, then occasionally 6 later in north.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or drizzle, becoming fair in south.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southerly or southwesterly 4 or 5, occasionally 6 at first in north.
    • Sea State

      Slight or moderate, becoming smooth or slight.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 12:00 UTC on Monday 16th Jan

  5. Gibraltar Point to North Foreland

    Gibraltar Point to North Foreland

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Variable, becoming easterly or southeasterly, 2 or 3, increasing 4 at times.
    • Sea State

      Smooth or slight, occasionally moderate at first in north.
    • Weather

      Occasional rain or showers at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southerly or southeasterly, becoming variable at times in south, 3 or 4, veering southwesterly 4 or 5 in north.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or drizzle later in north.
    • Visibility

      Moderate or good, occasionally poor later in north.

    Issued at 12:00 UTC on Monday 16th Jan

  6. North Foreland to Selsey Bill

    North Foreland to Selsey Bill

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Variable 2 or 3, becoming easterly 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or showers at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Easterly or northeasterly 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 12:00 UTC on Monday 16th Jan

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Northerly 4 or 5 at first in far west, otherwise variable 2 or 3, becoming easterly 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or drizzle, becoming fair later.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Easterly, backing northeasterly later, 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 12:00 UTC on Monday 16th 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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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

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

      Mainly moderate in far southwest, otherwise smooth or slight.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southeast, backing east, 3 or 4.
    • Sea State

      Moderate in far southwest, otherwise smooth or slight.
    • Weather

      Occasional rain or drizzle at first.
    • Visibility

      Good, occasionally moderate at first.

    Issued at 12:00 UTC on Monday 16th 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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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Northwest 4 or 5, veering northeast, then southeast later, 3 or 4.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      East or southeast 3 or 4.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or drizzle, becoming fair in south.
    • Visibility

      Moderate or good, occasionally poor in north.

    Issued at 12:00 UTC on Monday 16th 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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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

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

      Smooth or slight.
    • Weather

      Occasional rain or drizzle later.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      South or southeast 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 12:00 UTC on Monday 16th Jan

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      West or northwest 3 or 4, becoming variable 3 or less, then south 3 or 4 later.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or drizzle, fog patches later in north.
    • Visibility

      Moderate or good, occasionally poor, but becoming very poor at times later in north.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southerly or southwesterly 3 or 4, occasionally 5 in north.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or drizzle and fog patches.
    • Visibility

      Moderate or good, occasionally very poor.

    Issued at 12:00 UTC on Monday 16th Jan

  12. Isle of Man

    Isle of Man

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

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

      Smooth or slight.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor later.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      South or southwest 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain or drizzle at first.
    • Visibility

      Good, occasionally moderate at first.

    Issued at 12:00 UTC on Monday 16th Jan

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

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

      Slight or moderate in northwest, smooth or slight in southeast.
    • Weather

      Occasional rain or drizzle, becoming fair later in north.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      South or southwest, becoming variable at times, 3 or 4.
    • Sea State

      Slight or moderate in northwest, smooth or slight in southeast.
    • Weather

      Occasional rain or drizzle in south, otherwise mainly fair.
    • Visibility

      Moderate or good, occasionally poor in south.

    Issued at 12:00 UTC on Monday 16th Jan

  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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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Westerly, backing southerly or southwesterly, but becoming variable at times, 3 or 4.
    • Sea State

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

      Occasional rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southerly or southwesterly 3 or 4.
    • Sea State

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

      Mainly fair.
    • Visibility

      Good, occasionally poor.

    Issued at 12:00 UTC on Monday 16th Jan

  15. Mull of Kintyre to Ardnamurchan Point

    Mull of Kintyre to Ardnamurchan Point

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    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Southwesterly 4 or 5, occasionally 3 in south.
    • Sea State

      Moderate or rough.
    • Weather

      Occasional rain or drizzle, fog patches, becoming fair later.
    • Visibility

      Moderate, occasionally very poor, becoming good later.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

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

      Moderate or rough.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 12:00 UTC on Monday 16th Jan

  16. The Minch * warning

    The Minch

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    Strong wind warning

    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

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

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

      Occasional rain or drizzle, fog patches, showers later.
    • Visibility

      Moderate, occasionally very poor, becoming good later.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southwesterly 5 to 7, occasionally gale 8 in north.
    • Sea State

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

      Occasional rain or showers.
    • Visibility

      Good, occasionally moderate.

    Issued at 12:00 UTC on Monday 16th 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

    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

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

      Rough.
    • Weather

      Occasional rain or drizzle, fog patches, showers later.
    • Visibility

      Moderate, occasionally very poor, becoming good later.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      Southwesterly 5 to 7, occasionally gale 8 in north.
    • Sea State

      Rough or very rough.
    • Weather

      Occasional rain or showers.
    • Visibility

      Good, occasionally moderate.

    Issued at 12:00 UTC on Monday 16th Jan

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Southerly 5 to 7 at first in far east, otherwise southwesterly 4 or 5, occasionally 6 later, but becoming variable 3 for a time in northwest.
    • Sea State

      Moderate or rough.
    • Weather

      Occasional rain or drizzle with fog patches.
    • Visibility

      Moderate or poor, occasionally very poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 12:00 UTC on Monday 16th Jan

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

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

    12:00 UTC Mon 16th Jan – 23:59 UTC Mon 16th Jan

    • Wind

      Southerly 5 to 7 in at first in far east, otherwise southwesterly 4 or 5, becoming variable 3 in the northwest.
    • Sea State

      Moderate or rough.
    • Weather

      Occasional rain or drizzle with fog patches.
    • Visibility

      Moderate, occasionally very poor.

    00:00 UTC Tue 17th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      Variable 3 at first in the northwest, otherwise southwesterly 4 or 5, increasing 6 at times.
    • Sea State

      Moderate or rough.
    • Weather

      Occasional rain or drizzle with fog patches.
    • Visibility

      Moderate, occasionally very poor.

    Issued at 12:00 UTC on Monday 16th Jan

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

    • Wind

      North 4 to 5 in the west of the area, perhaps 6 at first, southeast 2 to 3 in the east, becoming generally southeast to east 3 to 4 by midnight.
    • Sea State

      Moderate, occasionally rather rough at first, decreasing mainly slight overnight.
    • Weather

      Occasional rain, drizzle and mist patches, mostly clearing by dawn tomorrow.
    • Visibility

      Moderate to good, occasionally poor.

    12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

    • Wind

      East to northeast 4 to 5, occasionally 3.
    • Sea State

      Slight with a low swell, moderate in the north of the area.
    • Weather

      Fair.
    • Visibility

      Moderate to good.

    Issued at 12:00 UTC on Monday 16th Jan

Lyme Regis to Lands End including the Isles of Scilly

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12:00 UTC Mon 16th Jan – 11:59 UTC Tue 17th Jan

  • Wind

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

    Mainly moderate in far southwest, otherwise smooth or slight.
  • Weather

    Occasional rain or drizzle.
  • Visibility

    Moderate or good, occasionally poor.

12:00 UTC Tue 17th Jan – 11:59 UTC Wed 18th Jan

  • Wind

    Southeast, backing east, 3 or 4.
  • Sea State

    Moderate in far southwest, otherwise smooth or slight.
  • Weather

    Occasional rain or drizzle at first.
  • Visibility

    Good, occasionally moderate at first.

Issued at 12:00 UTC on Monday 16th Jan