Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

A deep low near the faeroe islands will move into southern Norway by late tomorrow. This will bring a brisk westerly or northwesterly flow across the British Isles with gales at first in northern Scotland.

* 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 Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      Southwest veering northwest 6 to gale 8, occasionally severe gale 9 at first near Orkney, decreasing 4 or 5 later.
    • Sea State

      Very rough or high, becoming moderate or rough in northwest, slight or moderate, occasionally rough in southeast.
    • Weather

      Rain then showers.
    • Visibility

      Moderate or good, occasionally poor at first near Orkney.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Northwest veering north 4 or 5, occasionally 6 at first, becoming variable 3 or 4 later.
    • Sea State

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

      Showers.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  2. Rattray Head to Berwick on Tweed * warning

    Rattray Head to Berwick on Tweed

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West or northwest 5 to 7.
    • Sea State

      Slight or moderate, occasionally rough near Rattray Head.
    • Weather

      Rain at times near Rattray Head.
    • Visibility

      Good, occasionally moderate near Rattray Head.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      West or northwest 5 or 6, becoming variable 3 or 4.
    • Sea State

      Slight or moderate, occasionally smooth.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  3. Berwick on Tweed to Whitby * warning

    Berwick on Tweed to Whitby

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight, occasionally moderate near Berwick-upon-Tweed.
    • Weather

      Fair.
    • Visibility

      Good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

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

      Slight, occasionally moderate at first offshore.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  4. Whitby to Gibraltar Point * warning

    Whitby to Gibraltar Point

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight.
    • Weather

      Occasional rain at first.
    • Visibility

      Good, occasionally moderate at first.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      West or northwest 4 or 5, occasionally 6 at first, becoming variable 3 or less later.
    • Sea State

      Slight, occasionally moderate offshore.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight or moderate.
    • Weather

      Rain at times.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Westerly or northwesterly 4 or 5, occasionally 6 at first, becoming variable 3 or less, occasionally 4 later.
    • Sea State

      Slight or moderate, occasionally smooth.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight or moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Westerly or southwesterly, veering northwesterly, 4 or 5, becoming variable 3 or less, occasionally 4 later.
    • Sea State

      Smooth or slight, occasionally moderate at first.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 18:00 UTC on Saturday 24th Jun

  7. Selsey Bill to Lyme Regis * warning

    Selsey Bill to Lyme Regis

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight or moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

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

      Smooth or slight, occasionally moderate at first.
    • Weather

      Fair.
    • Visibility

      Moderate or good.

    Issued at 18:00 UTC on Saturday 24th Jun

  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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    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight or moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Moderate or good, occasionally poor.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Variable 3 or less, increasing 4 at times.
    • Sea State

      Slight or moderate, becoming smooth in shelter.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    Issued at 18:00 UTC on Saturday 24th Jun

  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 Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight or moderate.
    • Weather

      Rain at times.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      West or northwest 3 or 4, occasionally 5 at first in the Bristol Channel, becoming variable 3 or less, then becoming south or southwest 4 or 5 later.
    • Sea State

      Slight or moderate, occasionally smooth.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    Issued at 18:00 UTC on Saturday 24th Jun

  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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    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

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

      Slight, becoming moderate for a time in Saint Georges Channel.
    • Weather

      Rain at times.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Variable 3 or 4, becoming south or southeast 4 or 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Saturday 24th Jun

  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 Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West veering northwest 4 or 5, occasionally 6 at first.
    • Sea State

      Slight.
    • Weather

      Rain at times.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Northwest 4 or 5, becoming variable 3 or less, then becoming east or southeast 4 or 5, occasionally 6 later.
    • Sea State

      Slight, occasionally smooth.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Saturday 24th Jun

  12. Isle of Man * warning

    Isle of Man

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West or northwest 4 or 5, occasionally 6 at first, becoming variable 3 or 4 later.
    • Sea State

      Slight, occasionally moderate at first.
    • Weather

      Rain at times.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Variable 3 or less, occasionally 4 at first, becoming southeast 4 or 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Saturday 24th Jun

  13. Lough Foyle to Carlingford Lough * warning

    Lough Foyle to Carlingford Lough

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West, veering north or northwest, 4 or 5, occasionally 6 at first.
    • Sea State

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

      Rain or showers.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      North or northwest 4 or 5, becoming variable 3 or less, then becoming east 4 or 5 later.
    • Sea State

      Smooth or slight, occasionally moderate at first.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Saturday 24th Jun

  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 Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      Westerly, veering northerly or northwesterly, 4 or 5, increasing 6 at times.
    • Sea State

      Slight or moderate.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Westerly or northwesterly 4 or 5, becoming variable 3 or less, then becoming easterly or northeasterly 4 or 5 later.
    • Sea State

      Smooth or slight, occasionally moderate at first.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Saturday 24th Jun

  15. Mull of Kintyre to Ardnamurchan Point * warning

    Mull of Kintyre to Ardnamurchan Point

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West veering northwest 5 or 6, decreasing 4 at times.
    • Sea State

      Moderate or rough, occasionally very rough at first in far northwest.
    • Weather

      Showers.
    • Visibility

      Good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

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

      Slight or moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 18:00 UTC on Saturday 24th Jun

  16. The Minch * warning

    The Minch

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West or northwest 6 to gale 8, decreasing 4 or 5.
    • Sea State

      Slight or moderate or rough, occasionally rough.
    • Weather

      Showers.
    • Visibility

      Good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Northwest 3 or 4, becoming variable 3, then becoming north or northeast 4 or 5 later.
    • Sea State

      Slight or moderate, occasionally smooth.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  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 Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      West or northwest 6 to gale 8, decreasing 4 or 5.
    • Sea State

      Rough or very rough, becoming moderate.
    • Weather

      Showers.
    • Visibility

      Good.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Northwest 3 or 4, becoming variable 3, then becoming north or northeast 4 or 5 later.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  18. Shetland Isles * warning

    Shetland Isles

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      Cyclonic 6 to gale 8, becoming north or northwest 5 or 6.
    • Sea State

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

      Rain or showers.
    • Visibility

      Good, occasionally moderate at first.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 18:00 UTC on Saturday 24th Jun

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

    Gale Warnings in operation for Sea Area Fair Isle: Severe gale force 9 veering westerly and decreasing gale force 8 soon. Issued at 0945 UTC on 24 June 2017.

    18:00 UTC Sat 24th Jun – 05:59 UTC Sun 25th Jun

    • Wind

      Cyclonic 5 to 7, occasionally gale 8 until later.
    • Sea State

      Rough or very rough, becoming moderate east of shetland.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good.

    06:00 UTC Sun 25th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      Cyclonic 5 to 7, becoming north or northwest 5 or 6.
    • Sea State

      Moderate or rough, occasionally very rough at first near fair isle.
    • Weather

      Showers.
    • Visibility

      Good.

    Issued at 18:00 UTC on Saturday 24th Jun

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

    • Wind

      Southwest to west 4 to 5, perhaps occasionally 6 Sunday morning.
    • Sea State

      Slight to moderate, perhaps locally rather rough in the north at times on Sunday.
    • Weather

      Patchy light rain or drizzle and mist patches, clearing for a time overnight.
    • Visibility

      Good, occasionally moderate to poor.

    18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

    • Wind

      Southwest to west 4 to 5, decreasing 3 to 4 in the evening, becoming variable 1 to 3 by midnight, then mainly northeasterly 2 to 4 by Monday afternoon.
    • Sea State

      Slight, perhaps moderate at first, with a low swell, becoming smooth or slight overnight.
    • Weather

      Patchy light rain or drizzle and mist, clearing late evening, risk of a shower on Monday.
    • Visibility

      Moderate to good, occasionally poor, becoming good.

    Issued at 18:00 UTC on Saturday 24th Jun

Lyme Regis to Lands End including the Isles of Scilly

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18:00 UTC Sat 24th Jun – 17:59 UTC Sun 25th Jun

  • Wind

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

    Slight or moderate.
  • Weather

    Rain or drizzle at times.
  • Visibility

    Moderate or good, occasionally poor.

18:00 UTC Sun 25th Jun – 17:59 UTC Mon 26th Jun

  • Wind

    Variable 3 or less, increasing 4 at times.
  • Sea State

    Slight or moderate, becoming smooth in shelter.
  • Weather

    Occasional rain later.
  • Visibility

    Moderate or good.

Issued at 18:00 UTC on Saturday 24th Jun