Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A deep area of low pressure over the eastern North Sea will move away southeastwards. A transient ridge of high pressure will follow across the British Isles from the west with Atlantic fronts then moving eastwards to affect the north during the day.

* 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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest backing southwest 5 to 7, occasionally gale 8 near Rattray Head at first and near Cape Wrath later.
    • Sea State

      Rough or very rough, becoming moderate in east.
    • Weather

      Showers then rain.
    • Visibility

      Moderate or good, occasionally poor in north.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Southwesterly 5 to 7, occasionally gale 8 at first in north, decreasing 4 at times in east.
    • Sea State

      Moderate or rough, occasionally very rough in north.
    • Weather

      Rain then showers.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 23:00 UTC on Tuesday 21st Oct

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest backing southwest 5 to 7, occasionally gale 8 near Rattray Head at first.
    • Sea State

      Very rough at first near Rattray Head, otherwise rough becoming moderate.
    • Weather

      Showers becoming fair, then occasional rain.
    • Visibility

      Moderate or good, occasionally poor later.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Southwest 5 to 7.
    • Sea State

      Slight or moderate.
    • Weather

      Rain at times, showers later.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwesterly 6 to gale 8, backing southwesterly 4 or 5, occasionally 6 in north.
    • Sea State

      Rough or very rough, becoming slight or moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Slight or moderate.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 6 to gale 8, backing southwest 4 or 5.
    • Sea State

      Rough or very rough, becoming slight or moderate.
    • Weather

      Occasional rain in north later.
    • Visibility

      Good, becoming moderate in north.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Southwest 4 or 5.
    • Sea State

      Slight or moderate.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwesterly 6 to gale 8, decreasing 5 or 6, then backing westerly 4 or 5 later.
    • Sea State

      Very rough at first near northeast Norfolk, otherwise moderate or rough, becoming slight or moderate.
    • Weather

      Showers then fair.
    • Visibility

      Good.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Westerly backing southwesterly 4 or 5.
    • Sea State

      Slight or moderate.
    • Weather

      Mainly fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwesterly 6 to gale 8, decreasing 4 or 5, backing westerly later.
    • Sea State

      Rough, becoming slight or moderate.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Slight or moderate.
    • Weather

      Fair then occasional drizzle.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 5 to 7, backing west 4 or 5.
    • Sea State

      Moderate or rough, becoming slight or moderate.
    • Weather

      Fair.
    • Visibility

      Good.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Slight or moderate.
    • Weather

      Occasional drizzle.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest backing southwest 5 or 6, decreasing 4 at times.
    • Sea State

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

      Occasional drizzle later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Moderate or rough near the Isles of Scilly, otherwise slight or moderate.
    • Weather

      Occasional drizzle.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest backing southwest 5 or 6, decreasing 4 at times.
    • Sea State

      Rough becoming moderate.
    • Weather

      Occasional drizzle later.
    • Visibility

      Good, occasionally moderate later.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Moderate.
    • Weather

      Occasional drizzle.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest backing southwest 5 or 6, occasionally 7 at first.
    • Sea State

      Moderate or rough.
    • Weather

      Mainly fair then occasional rain or drizzle.
    • Visibility

      Moderate or good.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Southwest 5 or 6.
    • Sea State

      Moderate.
    • Weather

      Occasional drizzle.
    • Visibility

      Moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 5 to 7, occasionally gale 8 at first, backing southwest 5 or 6.
    • Sea State

      Rough becoming moderate.
    • Weather

      Squally showers becoming fair, then occasional rain.
    • Visibility

      Moderate or good, occasionally poor later.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Southwest 5 or 6, decreasing 4 at times in Liverpool Bay.
    • Sea State

      Slight or moderate in Liverpool Bay, otherwise moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 21st Oct

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 6 or 7, backing west then southwest 5 or 6.
    • Sea State

      Moderate or rough, becoming moderate.
    • Weather

      Fair then rain or drizzle for a time.
    • Visibility

      Good, becoming moderate or poor for a time.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Moderate, becoming slight or moderate later.
    • Weather

      Occasional rain or drizzle later.
    • Visibility

      Good, becoming moderate or poor later.

    Issued at 23:00 UTC on Tuesday 21st Oct

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 5 to 7, occasionally gale 8 at first, backing southwest 5 or 6.
    • Sea State

      Rough or very rough, becoming moderate or rough.
    • Weather

      Showers then rain or drizzle.
    • Visibility

      Moderate or good, occasionally poor later.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Moderate or rough in north, otherwise slight or moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 21st Oct

  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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwesterly 5 to 7, occasionally gale 8 in North Channel at first, backing southwesterly 5 or 6.
    • Sea State

      Very rough at first in North Channel, otherwise rough becoming slight or moderate.
    • Weather

      Showers then rain or drizzle.
    • Visibility

      Good becoming moderate, occasionally poor.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Slight or moderate.
    • Weather

      Rain or drizzle.
    • Visibility

      Moderate or poor, occasionally good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest backing southwest 5 to 7, occasionally gale 8 at first and later.
    • Sea State

      Rough or very rough.
    • Weather

      Showers then rain.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Rough but very rough in west.
    • Weather

      Rain or drizzle, showers later.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 21st Oct

  16. The Minch * warning

    The Minch

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      West backing southwest 4 or 5, occasionally 6, increasing 6 to gale 8.
    • Sea State

      Moderate or rough.
    • Weather

      Showers then rain.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Moderate or rough.
    • Weather

      Rain then showers.
    • Visibility

      Moderate or poor, becoming moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  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 Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      West backing southwest 4 or 5, occasionally 6, increasing 6 to gale 8.
    • Sea State

      Rough or very rough.
    • Weather

      Showers then rain.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

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

      Rough or very rough.
    • Weather

      Rain then showers.
    • Visibility

      Moderate or poor, becoming moderate or good.

    Issued at 23:00 UTC on Tuesday 21st Oct

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 6 to gale 8, backing west 3 or 4, then backing south 6 to gale 8, veering southwest 5 to 7 later.
    • Sea State

      Rough or very rough.
    • Weather

      Fair then rain.
    • Visibility

      Moderate or good, occasionally poor.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 23:00 UTC on Tuesday 21st Oct

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

    Gale Warnings in operation for Sea Area Fair Isle: NORTHWESTERLY STORM FORCE 10 DECREASING SEVERE GALE FORCE 9 IMMINENT

    23:00 UTC Tue 21st Oct – 10:59 UTC Wed 22nd Oct

    • Wind

      Northwest 6 to gale 8, backing west 3 or 4, then southwest 5 or 6.
    • Sea State

      Rough or very rough.
    • Weather

      Rain later.
    • Visibility

      Good, occasionally moderate later.

    11:00 UTC Wed 22nd Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Southwest 5 or 6, backing south 6 to gale 8, veering southwest 5 to 7.
    • Sea State

      Rough or very rough.
    • Weather

      Rain.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Tuesday 21st Oct

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    23:00 UTC Tue 21st Oct – 22:59 UTC Wed 22nd Oct

    • Wind

      Northwest 5 to 6, locally 7 with gusts to 45kt at first, decreasing 4 to 5 by midday, backing west in the afternoon and southwest towards midnight.
    • Sea State

      Rather rough to rough decreasing moderate to rather rough by afternoon.
    • Weather

      Fair or cloudy.
    • Visibility

      Moderate to good.

    23:00 UTC Wed 22nd Oct – 22:59 UTC Thu 23rd Oct

    • Wind

      Southwest 4 to 5, locally 6 in the north at times.
    • Sea State

      Moderate to rather rough, with a low swell.
    • Weather

      Risk of a little rain or drizzle at times.
    • Visibility

      Moderate to good.

    Issued at 23:00 UTC on Tuesday 21st Oct