Y Tywydd Rhagolwg Llongau

Gosodiadau
Iaith

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

Map of shipping forecast areas

The general synopsis at 1800

Low 100 miles west of Bailey 985 expected northwest Bailey 993 by 1800 Thursday. High eastern German Bight 1029 expected Baltic sea 1028 by same time

Issued 4 May 23:15 UTC

  1. Viking

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    • Wind

      Southerly 5 to 7.
    • Sea State

      Moderate or rough.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good.
  2. North Utsire

    Gale Warning: Gale warning issued 4 May 21:42 UTC

    Southerly gale force 8 expected soon

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    • Wind

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

      Moderate or rough.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good.
  3. South Utsire

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    • Wind

      Southerly 5 to 7, occasionally 4 later.
    • Sea State

      Moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Good, occasionally poor.
  4. Forties

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    • Wind

      Southerly 5 to 7, occasionally 4 later.
    • Sea State

      Moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Good, occasionally poor.
  5. Cromarty

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    • Wind

      Southerly 5 to 7, occasionally 4 later.
    • Sea State

      Moderate.
    • Weather

      Rain or drizzle at times.
    • Visibility

      Good, occasionally poor.
  6. Forth

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    • Wind

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

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Moderate or good.
  7. Tyne

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    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  8. Dogger

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    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  9. Fisher

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    • Wind

      Southerly backing southeasterly 4 or 5, occasionally 6 in west.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  10. German Bight

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    • Wind

      Southeasterly 3 or 4, occasionally 5 in west and south.
    • Sea State

      Slight, occasionally moderate in west.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  11. Humber

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    • Wind

      Southeasterly 4 or 5, occasionally 6 in northwest.
    • Sea State

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  12. Thames

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    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  13. Dover

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    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  14. Wight

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    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  15. Portland

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    • Wind

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

      Slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  16. Plymouth

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    • Wind

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

      Slight or moderate, becoming rough in south and west.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  17. Biscay

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    • Wind

      East or northeast 4 or 5, becoming cyclonic 3 or 4 later.
    • Sea State

      Moderate or rough.
    • Weather

      Thundery showers later in south.
    • Visibility

      Good, occasionally moderate later in south.
  18. Trafalgar

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    • Wind

      Easterly 6 to gale 8 at first in southeast, otherwise cyclonic 4 or 5.
    • Sea State

      Moderate or rough.
    • Weather

      Thundery showers.
    • Visibility

      Good, occasionally poor.
  19. FitzRoy

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    • Wind

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

      Rough in west and north, moderate or rough in east and south.
    • Weather

      Showers, thundery in south.
    • Visibility

      Good, occasionally poor.
  20. Sole

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    • Wind

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

      Rough.
    • Weather

      Occasional drizzle then fair.
    • Visibility

      Good, occasionally moderate at first.
  21. Lundy

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    • Wind

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

      Moderate or rough.
    • Weather

      Occasional drizzle then fair.
    • Visibility

      Good, occasionally moderate at first.
  22. Fastnet

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    • Wind

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

      Moderate or rough.
    • Weather

      Occasional drizzle then fair.
    • Visibility

      Good, occasionally moderate at first.
  23. Irish Sea

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    • Wind

      South 5 or 6 becoming variable 3 or 4.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional drizzle then fair.
    • Visibility

      Good, occasionally poor.
  24. Shannon

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    • Wind

      Southwesterly 5 to 7 at first in north and west, otherwise westerly or northwesterly 3 or 4.
    • Sea State

      High at first in far northwest, otherwise very rough becoming rough.
    • Weather

      Showers.
    • Visibility

      Moderate or good.
  25. Rockall

    Gale Warning: Gale warning issued 5 May 03:27 UTC

    Southwesterly severe gale force 9 decreasing gale force 8 imminent

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    • Wind

      Southwesterly 6 to gale 8, occasionally severe gale 9 at first, decreasing 4 or 5 later.
    • Sea State

      Very rough or high, becoming rough later.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.
  26. Malin

    Gale Warning: Gale warning issued 4 May 10:10 UTC

    Gale force 8, increasing severe gale force 9 and veering southwesterly later

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    • Wind

      Southwesterly 6 to gale 8, occasionally severe gale 9 at first, decreasing 4 or 5 later.
    • Sea State

      Very rough or high, becoming rough later.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.
  27. Hebrides

    Gale Warning: Gale warning issued 4 May 10:10 UTC

    Gale force 8, increasing severe gale force 9 and veering southwesterly later

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    • Wind

      Southerly or southwesterly 6 to gale 8, increasing severe gale 9 at times.
    • Sea State

      Very rough or high.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.
  28. Bailey

    Gale Warning: Gale warning issued 5 May 03:27 UTC

    Southwesterly severe gale force 9 decreasing gale force 8 imminent

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    • Wind

      Southerly or southwesterly 6 to gale 8, increasing severe gale 9 at times.
    • Sea State

      Very rough or high.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.
  29. Fair Isle

    Gale Warning: Gale warning issued 4 May 21:42 UTC

    Southerly gale force 8 increasing severe gale force 9 soon

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    • Wind

      Southerly or southwesterly 6 to gale 8, occasionally severe gale 9 in west.
    • Sea State

      Rough or very rough in east, very rough or high in west.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.
  30. Faeroes

    Gale Warning: Gale warning issued 4 May 21:42 UTC

    Southerly gale force 8 increasing severe gale force 9 soon

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    • Wind

      Southerly or southwesterly 6 to gale 8, increasing severe gale 9 at times.
    • Sea State

      Very rough or high.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.
  31. Southeast Iceland

    Gale Warning: Gale warning issued 5 May 03:27 UTC

    Gale force 8 backing southwesterly soon

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    • Wind

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

      Rough or very rough, but high for a time at first in far south.
    • Weather

      Rain or showers.
    • Visibility

      Moderate or good, occasionally poor.