Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

An area of low pressure will move into Ireland, losing its identity, however it will bring rain to most areas, and fog patches to some 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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly, veering southwesterly later, 4 or 5, occasionally 6 in northwest, increasing 6 to gale 8 later.
    • Sea State

      Slight or moderate, becoming moderate or rough later, occasionally very rough later in northwest.
    • Weather

      Showers, perhaps thundery at first, then occasional rain later.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      Westerly or southwesterly 6 to gale 8, increasing severe gale 9 at times, backing southerly 4 or 5 for a time.
    • Sea State

      Moderate or rough, becoming very rough or high in northwest.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly, veering southwesterly later, 4 or 5, becoming variable 3 for a time in south, increasing 6 or 7 later.
    • Sea State

      Slight or moderate, occasionally rough later.
    • Weather

      Showers, rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      Southwesterly 5 to 7, increasing gale 8 at times.
    • Sea State

      Slight or moderate, becoming rough at times.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

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

      Slight or moderate, occasionally smooth at first.
    • Weather

      Showers, rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 5 to 7, occasionally 4 at first.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or showers later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 18:00 UTC on Monday 26th Sep

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

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

      Slight or moderate.
    • Weather

      Showers, rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

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

      Slight or moderate, occasionally smooth.
    • Weather

      Occasional rain or showers later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 18:00 UTC on Monday 26th Sep

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

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

      Smooth or slight, occasionally moderate later.
    • Weather

      Showers, rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

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

      Slight or moderate, occasionally smooth at first.
    • Weather

      Occasional rain at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 18:00 UTC on Monday 26th Sep

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

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

      Slight or moderate, occasionally smooth at first in east.
    • Weather

      Showers, rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

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

      Slight or moderate.
    • Weather

      Occasional rain at first.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 18:00 UTC on Monday 26th Sep

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

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

      Slight or moderate.
    • Weather

      Occasional rain or showers, fog patches later.
    • Visibility

      Moderate or good, occasionally very poor later.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 4 or 5, occasionally 6 later.
    • Sea State

      Slight or moderate.
    • Weather

      Mainly fair.
    • Visibility

      Moderate or good, occasionally poor at first.

    Issued at 18:00 UTC on Monday 26th Sep

  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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly 5 or 6, occasionally 7 at first in west, veering westerly 4 or 5.
    • Sea State

      Moderate or rough, occasional slight in shelter mainly in east.
    • Weather

      Occasional rain or showers, fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      Westerly or northwesterly, backing southwesterly later, 3 or 4, increasing 5 or 6 later.
    • Sea State

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

      Occasional rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 18:00 UTC on Monday 26th Sep

  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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      South 5 to 7, veering west or southwest 4 or 5.
    • Sea State

      Moderate, occasionally rough, but slight at times in Bristol Channel.
    • Weather

      Occasional rain or showers, fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 4 or 5, increasing 6 or 7 later.
    • Sea State

      Moderate, occasionally rough later, but slight at times in the Bristol Channel.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 18:00 UTC on Monday 26th Sep

  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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly 4 or 5, increasing 6 at times, occasionally 3 at first in north, veering southwesterly 4 or 5 later.
    • Sea State

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

      Occasional rain or showers, fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      Westerly or southwesterly 4 or 5, increasing 6 or 7, perhaps gale 8 later.
    • Sea State

      Slight or moderate, occasionally rough later.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 18:00 UTC on Monday 26th Sep

  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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Variable 3 or 4, becoming south, veering west or southwest later, 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate, occasionally smooth at first.
    • Weather

      Occasional rain or showers, fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 4 or 5, increasing 6 or 7, perhaps gale 8 later.
    • Sea State

      Slight or moderate, occasionally rough later.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Variable 3 or 4, becoming south, veering west or southwest later, 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate, occasionally smooth at first.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 4 or 5, increasing 6 or 7.
    • Sea State

      Slight or moderate, occasionally rough later.
    • Weather

      Occasional rain or showers later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Monday 26th Sep

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly, veering westerly later, 3 or 4, increasing 5 or 6, occasionally 7 later in far north.
    • Sea State

      Slight or moderate, occasionally rough later in far north.
    • Weather

      Occasional rain or showers, fog patches developing.
    • Visibility

      Moderate or good, occasionally very poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      Westerly 5 or 6, occasionally 7 in far north, backing southwesterly 5 to 7 later.
    • Sea State

      Slight or moderate, becoming rough or very rough in north.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly, veering westerly later, 3 or 4, increasing 5 or 6.
    • Sea State

      Slight or moderate, but smooth at first in the Firth of Clyde, occasionally rough later near Mull of Kintyre.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      Westerly 5 or 6, backing southwesterly 5 to 7 later.
    • Sea State

      Slight or moderate, occasionally rough near Mull of Kintyre.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      South, veering west later, 3 or 4, increasing 5 to 7.
    • Sea State

      Slight or moderate, becoming rough or very rough later.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 5 to 7, occasionally gale 8 later.
    • Sea State

      Rough or very rough, occasionally high in northwest.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  16. The Minch * warning

    The Minch

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      South, veering southwest later, 5 to 7, occasionally 4 at first, then increasing gale 8 at times later.
    • Sea State

      Slight or moderate, becoming moderate or rough later, occasionally very rough later in south.
    • Weather

      Showers, perhaps thundery at first, then occasional rain.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 6 to gale 8, increasing severe gale 9 at times.
    • Sea State

      Moderate or rough, occasionally very rough in south and far north.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  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

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      South, veering southwest later, 5 to 7, occasionally 4 at first, then increasing gale 8 at times later.
    • Sea State

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

      Showers, perhaps thundery at first, then occasional rain.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West or southwest 6 to gale 8, increasing severe gale 9 at times.
    • Sea State

      Very rough or high, occasionally rough.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      South, veering southwest later, 4 or 5, occasionally 6 at first, then increasing 6 to gale 8 later.
    • Sea State

      Moderate or rough, occasionally very rough later.
    • Weather

      Showers, perhaps thundery at first, then occasional rain later.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 18:00 UTC on Monday 26th Sep

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

    Gale Warnings in operation for Sea Area Fair Isle: Southeasterly gale force 8 expected later.

    18:00 UTC Mon 26th Sep – 05:59 UTC Tue 27th Sep

    • Wind

      South 4 or 5, occasionally 6 at first.
    • Sea State

      Moderate.
    • Weather

      Showers, perhaps thundery at first.
    • Visibility

      Moderate or good, occasionally poor.

    06:00 UTC Tue 27th Sep – 17:59 UTC Tue 27th Sep

    • Wind

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

      Moderate or rough, occasionally very rough later.
    • Weather

      Occasional rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 18:00 UTC on Monday 26th Sep

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    18:00 UTC Mon 26th Sep – 17:59 UTC Tue 27th Sep

    • Wind

      Southerly 3 in the south to 5 in the north, increasing 5 to 6 by midnight, veering southwest to west Tuesday morning and decreasing 3 to 5, further decreasing 3 to 4 by evening.
    • Sea State

      Slight to moderate, locally rather rough in the north and west by midnight.
    • Weather

      Occasional rain or drizzle. Risk of fog patches from dawn.
    • Visibility

      Good, becoming moderate to poor in rain or drizzle and perhaps very poor by dawn.

    18:00 UTC Tue 27th Sep – 17:59 UTC Wed 28th Sep

    • Wind

      West to northwest 3 to 4, backing southwest by Wednesday afternoon, locally 5 in the north by evening.
    • Sea State

      Slight in the southeast to rather rough in the northwest, with a low swell.
    • Weather

      Occasional light rain or drizzle with a risk of mist or fog patches, clearing overnight.
    • Visibility

      Moderate to poor, perhaps very poor, becoming good overnight.

    Issued at 18:00 UTC on Monday 26th Sep