Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A large area of low pressure to the north of Scotland will move slowly northeastwards to lie over the Norwegian Sea by Sunday. This will bring a cool and showery westerly air flow to the whole country before a frontal system moves across southern England on Sunday.

* 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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    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

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

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest 4 or 5.
    • Sea State

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

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    Issued at 23:00 UTC on Friday 1st Jul

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      Westerly or southwesterly 5 or 6, increasing 7 at times later in south.
    • Sea State

      Slight, occasionally moderate later.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      Westerly or southwesterly 4 or 5, increasing 6 at times in south, then becoming variable 3 or less later in north.
    • Sea State

      Slight, occasionally moderate.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    Issued at 23:00 UTC on Friday 1st Jul

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

      Slight, occasionally moderate.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest 4 or 5.
    • Sea State

      Smooth or slight, occasionally moderate at first.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      West or southwest 5 or 6.
    • Sea State

      Slight.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest becoming variable for a time later, 3 or 4, occasionally 5 at first.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      Westerly or southwesterly 5 or 6, occasionally 7 in south.
    • Sea State

      Slight or moderate.
    • Weather

      Showers, thundery for a time.
    • Visibility

      Good, occasionally poor for a time.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      Westerly or southwesterly 4 or 5, occasionally 6 at times, then becoming variable 3 or 4 later in north.
    • Sea State

      Slight, occasionally moderate at first.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      Westerly or southwesterly 5 to 7.
    • Sea State

      Moderate, occasionally slight.
    • Weather

      Showers, thundery for a time.
    • Visibility

      Good, occasionally poor later.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      Westerly or southwesterly 5 or 6, decreasing 3 or 4, then becoming variable for a time later.
    • Sea State

      Moderate becoming slight.
    • Weather

      Occasional rain or drizzle for a time.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 23:00 UTC on Friday 1st Jul

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      West or southwest 5 to 7.
    • Sea State

      Moderate, occasionally slight.
    • Weather

      Showers, thundery for a time.
    • Visibility

      Good, occasionally poor for a time.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest 5 or 6, decreasing 3 or 4, then becoming cyclonic for a time.
    • Sea State

      Moderate becoming slight.
    • Weather

      Occasional rain or drizzle, becoming fair later.
    • Visibility

      Moderate or poor, becoming good later.

    Issued at 23:00 UTC on Friday 1st Jul

  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 Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

      Slight or moderate, occasionally rough west of Lizard.
    • Weather

      Showers.
    • Visibility

      Good.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West becoming cyclonic for a time, 3 or 4, increasing 5 at times.
    • Sea State

      Moderate west of Lizard, otherwise slight.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or poor, occasionally good.

    Issued at 23:00 UTC on Friday 1st Jul

  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 Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      West 5 or 6, occasionally 7 at first, backing southwest 4 or 5 later.
    • Sea State

      Moderate or rough.
    • Weather

      Showers.
    • Visibility

      Good.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      Southwest, becoming cyclonic for a time, 3 or 4, occasionally 5 at first.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain or drizzle.
    • Visibility

      Moderate or poor, occasionally good.

    Issued at 23:00 UTC on Friday 1st Jul

  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 Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

      Slight or moderate, but rough at first near St Davids Head.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

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

      Slight, occasionally moderate at first in south.
    • Weather

      Occasional rain or drizzle later.
    • Visibility

      Good, becoming moderate or poor later.

    Issued at 23:00 UTC on Friday 1st Jul

  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 Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      West or southwest 5 to 7, decreasing 4 at times later.
    • Sea State

      Slight or moderate.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      Westerly or southwesterly 4 or 5, becoming variable 3 or less later in north.
    • Sea State

      Slight.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Good.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

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

      Smooth or slight.
    • Weather

      Showers for a time.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      Westerly or southwesterly 5 to 7, decreasing 4 at times later in south.
    • Sea State

      Slight or moderate, occasionally rough in north.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

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

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  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 Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      Westerly or westerly 5 or 6, increasing 7 for a time.
    • Sea State

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

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      Southwesterly 4 or 5, increasing 6 at times, then becoming variable 3 or 4 later.
    • Sea State

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      West or southwest 5 to 7.
    • Sea State

      Moderate or rough.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest 4 or 5, occasionally 6 at first, decreasing mainly 3 later.
    • Sea State

      Moderate, occasionally rough at first.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 23:00 UTC on Friday 1st Jul

  16. The Minch * warning

    The Minch

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

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

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest 5 or 6, decreasing 3 or 4 later.
    • Sea State

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

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    Issued at 23:00 UTC on Friday 1st Jul

  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 Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

      Moderate or rough.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West or southwest 5 or 6, decreasing 3 or 4 later.
    • Sea State

      Moderate, occasionally rough at first.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.

    Issued at 23:00 UTC on Friday 1st Jul

  18. Shetland Isles * warning

    Shetland Isles

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    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

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

      Slight or moderate.
    • Weather

      Mainly fair.
    • Visibility

      Mainly good.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 23:00 UTC on Friday 1st Jul

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

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

    23:00 UTC Fri 1st Jul – 10:59 UTC Sat 2nd Jul

    • Wind

      West or southwest 2 or 3 occasionally 4 later.
    • Sea State

      Moderate but slight just east of shetland.
    • Weather

      Isolated showers.
    • Visibility

      Good, occasionally moderate.

    11:00 UTC Sat 2nd Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      West or southwest 3 or 4.
    • Sea State

      Moderate but slight just east of shetland.
    • Weather

      Isolated showers.
    • Visibility

      Mainly good.

    Issued at 23:00 UTC on Friday 1st Jul

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

    • Wind

      Westerly 5 to 6, decreasing 4 to 5 by Saturday evening.
    • Sea State

      Moderate to rather rough.
    • Weather

      Isolated showers, dying out in the afternoon.
    • Visibility

      Good, occasionally moderate in showers.

    23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

    • Wind

      West to southwest 4 to 5, backing southwest to south by dawn, occasionally 6 in the morning, veering west by midday, further veering northwest for a time in the afternoon.
    • Sea State

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

      Occasional rain and drizzle spreading in from the west, with mist and a risk of fog patches, perhaps clearing for a time later.
    • Visibility

      Good, becoming moderate by early morning, occasionally poor or very poor perhaps locally good for a time later.

    Issued at 23:00 UTC on Friday 1st Jul

Lyme Regis to Lands End including the Isles of Scilly

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Strong wind warning

23:00 UTC Fri 1st Jul – 22:59 UTC Sat 2nd Jul

  • Wind

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

    Slight or moderate, occasionally rough west of Lizard.
  • Weather

    Showers.
  • Visibility

    Good.

23:00 UTC Sat 2nd Jul – 22:59 UTC Sun 3rd Jul

  • Wind

    West becoming cyclonic for a time, 3 or 4, increasing 5 at times.
  • Sea State

    Moderate west of Lizard, otherwise slight.
  • Weather

    Occasional rain or drizzle.
  • Visibility

    Moderate or poor, occasionally good.

Issued at 23:00 UTC on Friday 1st Jul