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 midnight

Atlantic low 994 moving steadily east-northeast, expected just south of Iceland 998 by midnight tonight. Low southwest Scotland 1014 losing its identity

Issued 28 July 04:05 UTC

  1. Viking

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    • Wind

      Westerly or northwesterly 4.
    • Sea State

      Slight.
    • Weather

      Fog patches, thundery showers.
    • Visibility

      Moderate or good, occasionally very poor.
  2. North Utsire

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    • Wind

      Westerly or northwesterly 4.
    • Sea State

      Slight.
    • Weather

      Thundery showers.
    • Visibility

      Moderate or good.
  3. South Utsire

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    • Wind

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

      Slight, occasionally moderate.
    • Weather

      Thundery showers.
    • Visibility

      Moderate or good.
  4. Forties

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    • Wind

      In northeast, westerly or northwesterly 4. In southwest, variable 4.
    • Sea State

      Slight.
    • Weather

      In northeast, thundery showers. In southwest, fair.
    • Visibility

      Moderate or good.
  5. Cromarty

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    • Wind

      Variable 4, occasionally southwest 5 later.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  6. Forth

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    • Wind

      Variable 4.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  7. Tyne

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    • Wind

      Variable 4.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  8. Dogger

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    • Wind

      Variable 4.
    • Sea State

      Slight.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  9. Fisher

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    • Wind

      Northerly or northwesterly 3 increasing 4 or 5.
    • Sea State

      Slight, becoming slight or moderate.
    • Weather

      Fair.
    • Visibility

      Moderate or good.
  10. German Bight

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    • Wind

      In north, northerly or northwesterly 3 increasing 4 or 5. In south, northeasterly 4 or 5, increasing 6 at times.
    • Sea State

      In north, slight, becoming slight or moderate. in south, slight or moderate.
    • Weather

      In north, fair. In south, thundery showers.
    • Visibility

      Moderate or good.
  11. Humber

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    • Wind

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

      Slight or moderate.
    • Weather

      Thundery showers.
    • Visibility

      Moderate or good.
  12. Thames

    Gale Warning: Gale warning issued 28 July 03:40 UTC

    Northeasterly gale force 8 expected soon

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    • Wind

      Northerly or northeasterly 4 or 5 increasing 6 to gale 8.
    • Sea State

      Slight or moderate becoming moderate or rough.
    • Weather

      Rain or thundery showers.
    • Visibility

      Good, occasionally poor.
  13. Dover

    Gale Warning: Gale warning issued 28 July 03:40 UTC

    Northeasterly gale force 8 expected soon

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    • Wind

      Northerly or northeasterly 4 or 5 increasing 6 to gale 8.
    • Sea State

      Slight or moderate becoming moderate or rough.
    • Weather

      Rain or thundery showers.
    • Visibility

      Good, occasionally poor.
  14. Wight

    Gale Warning: Gale warning issued 28 July 03:40 UTC

    Northerly gale force 8 expected later

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    • Wind

      In east, northerly or northeasterly 4 or 5 increasing 6 to gale 8. In west, northerly or northwesterly 4 or 5, increasing 6 at times.
    • Sea State

      In east, slight or moderate becoming moderate or rough. in west, slight or moderate.
    • Weather

      In east, rain or thundery showers. In west, thundery showers.
    • Visibility

      In east, good, occasionally poor. In west, moderate or good.
  15. Portland

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    • Wind

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

      Slight or moderate.
    • Weather

      Thundery showers.
    • Visibility

      Moderate or good.
  16. Plymouth

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    • Wind

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

      Slight or moderate.
    • Weather

      Thundery showers.
    • Visibility

      Moderate or good.
  17. Biscay

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    • Wind

      Northerly or northwesterly 4 or 5, occasionally 6 in north and east.
    • Sea State

      Slight or moderate.
    • Weather

      Thundery showers.
    • Visibility

      Moderate or good.
  18. Trafalgar

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    • Wind

      Cyclonic 4 or 5, becoming northerly 5 to 7 in north.
    • Sea State

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

      Fog patches at first in east.
    • Visibility

      Moderate or good, occasionally very poor at first in east.
  19. FitzRoy

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    • Wind

      In south, northerly 5 to 7, perhaps gale 8 later in southeast. In north, northerly or northwesterly 4 or 5, increasing 6 at times.
    • Sea State

      In south, moderate or rough. in north, slight or moderate.
    • Weather

      Showers.
    • Visibility

      In south, good. In north, moderate or good.
  20. Sole

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    • Wind

      Northerly or northwesterly 4 or 5, occasionally 6 in east.
    • Sea State

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Moderate or good.
  21. Lundy

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    • Wind

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

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Moderate or good.
  22. Fastnet

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    • Wind

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

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Moderate or good.
  23. Irish Sea

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    • Wind

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

      Slight or moderate.
    • Weather

      Showers.
    • Visibility

      Moderate or good.
  24. Shannon

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    • Wind

      West or northwest 4 or 5.
    • Sea State

      Slight or moderate.
    • Weather

      Occasional rain later.
    • Visibility

      Moderate or good.
  25. Rockall

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    • Wind

      Northwesterly, backing southwesterly for a time, 4 or 5, increasing 6 later in north.
    • Sea State

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

      Rain for a time.
    • Visibility

      Good, occasionally poor.
  26. Malin

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    • Wind

      Northwest backing west or southwest, 4 or 5.
    • Sea State

      Slight or moderate.
    • Weather

      Rain or showers.
    • Visibility

      Good, occasionally poor.
  27. Hebrides

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    • Wind

      Northwest backing west or southwest, 4 or 5, occasionally 6 later.
    • Sea State

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

      Rain or showers.
    • Visibility

      Good, occasionally poor.
  28. Bailey

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    • Wind

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

      Slight or moderate becoming rough or very rough.
    • Weather

      Rain or showers.
    • Visibility

      Good, occasionally poor.
  29. Fair Isle

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    • Wind

      Westerly backing southwesterly 4, increasing 5 or 6 later in west.
    • Sea State

      Slight, becoming moderate later in west.
    • Weather

      Fog patches, rain later.
    • Visibility

      Moderate or good, occasionally very poor.
  30. Faeroes

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    • Wind

      Variable 4 becoming southerly 5 or 6.
    • Sea State

      Slight, becoming moderate or rough.
    • Weather

      Rain or showers, fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.
  31. Southeast Iceland

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    • Wind

      Variable 4 becoming southerly 5 or 6, then becoming cyclonic later.
    • Sea State

      Slight, becoming moderate or rough.
    • Weather

      Rain or showers, fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.