Y Tywydd Dyfroedd Gyda'r Glannau

Gosodiadau
Iaith

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

Summary

For today a high centred over southern Scandinavia will give mainly fair weather and an easterly flow of air. On Sunday it will then turn unsettled and windy across southern parts, courtesy of a low moving westwards along the English Channel.

* 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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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Southerly or southeasterly 4 or 5, but variable 2 or 3 in Moray Firth and west of Orkney.
    • Sea State

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

      Occasional drizzle at first in far northwest, otherwise fair.
    • Visibility

      Mainly good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Southeasterly 4 or 5 at first in east, otherwise variable 2 or 3, becoming easterly 3 or 4.
    • Sea State

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

      Fair.
    • Visibility

      Good, occasionally moderate later.

    Issued at 05:00 UTC on Saturday 19th Apr

  2. Rattray Head to Berwick on Tweed

    Rattray Head to Berwick on Tweed

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

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

      Moderate at first near Rattray Head, otherwise slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Southeasterly backing northeasterly 3 or 4, occasionally 5 later in south.
    • Sea State

      Smooth or slight, becoming moderate later.
    • Weather

      Fair.
    • Visibility

      Good, occasionally moderate later.

    Issued at 05:00 UTC on Saturday 19th Apr

  3. Berwick on Tweed to Whitby

    Berwick on Tweed to Whitby

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      East or southeast, backing northeast later, 3 or 4.
    • Sea State

      Moderate at first in south, otherwise slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeasterly 4 or 5, occasionally 6 in south.
    • Sea State

      Slight, becoming moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.

    Issued at 05:00 UTC on Saturday 19th Apr

  4. Whitby to Gibraltar Point

    Whitby to Gibraltar Point

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Northeast 3 or 4, occasionally 5 later.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeast 5 or 6, veering east 4 or 5 later.
    • Sea State

      Moderate, occasionally slight later in south.
    • Weather

      Occasional rain.
    • Visibility

      Moderate or good.

    Issued at 05:00 UTC on Saturday 19th Apr

  5. Gibraltar Point to North Foreland * warning

    Gibraltar Point to North Foreland

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    Strong wind warning

    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Northeasterly 4 or 5, occasionally 6 later.
    • Sea State

      Slight or moderate.
    • Weather

      Showers at first, occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeasterly 5 to 7, veering easterly 3 or 4 later.
    • Sea State

      Moderate, becoming slight later.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 05:00 UTC on Saturday 19th Apr

  6. North Foreland to Selsey Bill * warning

    North Foreland to Selsey Bill

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    Strong wind warning

    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Northeasterly 4 or 5, occasionally 6 in Strait of Dover.
    • Sea State

      Moderate in Strait of Dover, otherwise slight or moderate.
    • Weather

      Showers at first, occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeasterly 5 or 6, occasionally 7 at first, veering easterly 3 or 4 later.
    • Sea State

      Moderate in Strait of Dover, otherwise slight or moderate.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 05:00 UTC on Saturday 19th Apr

  7. Selsey Bill to Lyme Regis

    Selsey Bill to Lyme Regis

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

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

      Smooth or slight, becoming moderate later offshore.
    • Weather

      Fair, occasional rain later.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeast 5 to 7, veering east 4 or 5 later.
    • Sea State

      Slight or moderate.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 05:00 UTC on Saturday 19th Apr

  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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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      East or northeast 4 or 5, becoming variable 2 or 3 for a time in Lyme bay.
    • Sea State

      Slight, occasionally moderate in west.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeast 4 or 5, backing north 5 to 7, then veering east 5 or 6 later.
    • Sea State

      Slight or moderate, becoming rough near Isles of Scilly.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.

    Issued at 05:00 UTC on Saturday 19th Apr

  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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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      East backing northeast 4 or 5.
    • Sea State

      Slight, occasionally smooth in east.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeast 4 or 5, backing north 5 to 7, then veering northeast 5 or 6 later.
    • Sea State

      Slight, becoming moderate in west.
    • Weather

      Fair at first, then rain or showers.
    • Visibility

      Moderate or good, occasionally poor later.

    Issued at 05:00 UTC on Saturday 19th Apr

  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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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Easterly or northeasterly, becoming variable for a time, 3 or 4, occasionally 5 north of Anglesey.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeasterly 4 or 5, backing northerly 5 to 7, then veering northeast 5 or 6 later.
    • Sea State

      Slight or moderate.
    • Weather

      Fair, then occasional rain.
    • Visibility

      Good, occasionally moderate later.

    Issued at 05:00 UTC on Saturday 19th Apr

  11. Great Ormes Head to the Mull of Galloway

    Great Ormes Head to the Mull of Galloway

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      East or southeast 4 or 5, becoming variable 3 or 4, then becoming northeast later.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeast 4 or 5, occasionally 6 later.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 05:00 UTC on Saturday 19th Apr

  12. Isle of Man

    Isle of Man

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Southeast 4 or 5, backing east or northeast 3 or 4.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Northeast 4 or 5, occasionally 6 later.
    • Sea State

      Slight, becoming moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Good, occasionally moderate later.

    Issued at 05:00 UTC on Saturday 19th Apr

  13. Lough Foyle to Carlingford Lough

    Lough Foyle to Carlingford Lough

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

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

      Slight or moderate in north, otherwise smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      East 3 or 4, backing northeast 4 or 5.
    • Sea State

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

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Saturday 19th Apr

  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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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Easterly or southeasterly 3 or 4, occasionally 5 at first in North Channel, becoming variable 2 or 3 later.
    • Sea State

      Slight or moderate in North Channel, otherwise smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Variable 3 or 4, becoming northeast 4 or 5.
    • Sea State

      Smooth or slight in Firth of Clyde, otherwise slight or moderate.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Saturday 19th Apr

  15. Mull of Kintyre to Ardnamurchan Point

    Mull of Kintyre to Ardnamurchan Point

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Easterly or southeasterly 3 or 4, occasionally 5 in southwest.
    • Sea State

      Moderate or rough in west, otherwise slight.
    • Weather

      Fair.
    • Visibility

      Good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Southeasterly backing northeasterly 3 or 4, occasionally 5 later in south.
    • Sea State

      Moderate or rough in west, otherwise slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Saturday 19th Apr

  16. The Minch

    The Minch

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      South or southeast 3 or 4, becoming variable 2 or 3.
    • Sea State

      Smooth or slight.
    • Weather

      Rain or drizzle, then fair.
    • Visibility

      Moderate or good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Variable 2 or 3, becoming northeast 3 or 4, occasionally 5 later.
    • Sea State

      Smooth or slight.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Saturday 19th Apr

  17. Ardnamurchan Point to Cape Wrath including the Outer Hebrides

    Ardnamurchan Point to Cape Wrath including the Outer Hebrides

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

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

      Moderate or rough.
    • Weather

      Rain or drizzle, then fair.
    • Visibility

      Moderate or good.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      Variable becoming northeast 3 or 4, occasionally 5 later.
    • Sea State

      Moderate or rough.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Saturday 19th Apr

  18. Shetland Isles * warning

    Shetland Isles

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    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      Southwesterly backing southerly 4 or 5.
    • Sea State

      Moderate or rough, becoming slight to the east of the isles.
    • Weather

      Occasional rain at first.
    • Visibility

      Good, occasionally moderate at first.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      --
    • Sea State

      --
    • Weather

      --
    • Visibility

      --

    Issued at 05:00 UTC on Saturday 19th Apr

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

    Gale Warnings in operation for Sea Area Fair Isle: Nil at time of issue.

    05:00 UTC Sat 19th Apr – 16:59 UTC Sat 19th Apr

    • Wind

      Southwest backing south 4 or 5.
    • Sea State

      Moderate or rough.
    • Weather

      Rain clearing later.
    • Visibility

      Good, occasionally moderate at first.

    17:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      South 4 or 5.
    • Sea State

      Moderate or rough, occasionally slight east of Shetland.
    • Weather

      Fair.
    • Visibility

      Good.

    Issued at 05:00 UTC on Saturday 19th Apr

  19. The Channel Islands * warning

    The Channel Islands

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    Strong wind warning

    05:00 UTC Sat 19th Apr – 04:59 UTC Sun 20th Apr

    • Wind

      East to northeast 3 to 4, increasing 4 to 5 in the afternoon, backing northeast to north overnight and increasing 5 to 6.
    • Sea State

      Slight, locally moderate becoming mainly moderate overnight.
    • Weather

      Isolated showers rain in the east early Sunday morning.
    • Visibility

      Good, locally moderate in showers and moderate to poor in rain later.

    05:00 UTC Sun 20th Apr – 04:59 UTC Mon 21st Apr

    • Wind

      North to northeast 5 to 6, veering northeast to east 4 to 5 during the afternoon and becoming locally cyclonic variable 1 to 4 in the south, becoming southeast 3 to 4 overnight.
    • Sea State

      Moderate, locally rather rough, becoming mainly slight overnight, with a low swell.
    • Weather

      Rain becoming intermittent during the afternoon, mostly clearing overnight.
    • Visibility

      Moderate to poor, becoming moderate to good.

    Issued at 05:00 UTC on Saturday 19th Apr