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The general synopsis at 4 December 08:00 UTC

At 040000UTC, low 40 north 49 west 987 expected 46 north 36 west 962 by 050000UTC. Low 55 north 42 west 978 expected 58 north 45 west 986 by same time. Lows 47 north 38 west 987 and 68 north 18 west 998 losing their identities by that time. New high expected 70 north 15 west 1022 by 050000UTC.

Issued 4 December 08:00 UTC

  1. Sole

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    • Wind

      East or southeast 4 or 5, occasionally 6 at first.
    • Sea State

      Moderate, occasionally rough at first.
    • Weather

      Showers.
    • Visibility

      Good.
  2. Shannon

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    • Wind

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

      Moderate or rough.
    • Weather

      Showers.
    • Visibility

      Good.
  3. Rockall

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    • Wind

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

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

      Showers.
    • Visibility

      Good.
  4. Bailey

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    • Wind

      South or southeast 4 or 5, decreasing 3 at times, occasionally 6 at first.
    • Sea State

      Moderate.
    • Weather

      Showers.
    • Visibility

      Good.
  5. Faeroes

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    • Wind

      West or southwest 4 or 5, increasing 6 at times, becoming mainly variable 3 or 4.
    • Sea State

      Slight or moderate.
    • Weather

      Showers, fog patches at first.
    • Visibility

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

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    • Wind

      Southwesterly 5 to 7, becoming variable 3 or 4.
    • Sea State

      Moderate, occasionally rough at first.
    • Weather

      Showers, fog patches at first.
    • Visibility

      Moderate or good, occasionally very poor at first.
  7. East Northern Section

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    • Wind

      Southerly or southeasterly 5 to 7, occasionally gale 8 in west, but decreasing 4 at times in northeast.
    • Sea State

      Moderate or rough, occasionally very rough in west.
    • Weather

      Occasional rain, mainly in west.
    • Visibility

      Moderate or good, occasionally poor.
  8. West Northern Section

    Storm warning issued 4 December 08:00 UTC

    Northeasterly winds will reach storm force 10 in the southwest of Denmark Strait and in the far northwest of West Northern Section between 041200UTC and 050000UTC. At 040000UTC, low 40 north 49 west 987 expected 46 north 36 west 962 by 050000UTC. Winds will reach storm force 10 between 25 and 100 miles of the centre in the southern semicircle between 041800UTC and 050500UTC.

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    • Wind

      Cyclonic in west, otherwise southerly, backing easterly or southeasterly, 5 to 7, increasing gale 8 at times, but becoming variable 4 for a time.
    • Sea State

      Rough or very rough.
    • Weather

      Occasional rain, fog patches.
    • Visibility

      Moderate or good, occasionally very poor.
  9. East Central Section

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    • Wind

      Southerly or southeasterly 5 to 7, decreasing 4 at times in south, occasionally gale 8 later in west.
    • Sea State

      Moderate or rough, occasionally very rough in west.
    • Weather

      Occasional rain or showers, thundery at times in southwest.
    • Visibility

      Moderate or good, occasionally poor.
  10. West Central Section

    Storm warning issued 4 December 08:00 UTC

    Northeasterly winds will reach storm force 10 in the southwest of Denmark Strait and in the far northwest of West Northern Section between 041200UTC and 050000UTC. At 040000UTC, low 40 north 49 west 987 expected 46 north 36 west 962 by 050000UTC. Winds will reach storm force 10 between 25 and 100 miles of the centre in the southern semicircle between 041800UTC and 050500UTC.

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    • Wind

      Cyclonic 4 or 5, increasing 6 to gale 8, then increasing severe gale 9 or storm 10 for a time mainly in west.
    • Sea State

      Rough or very rough, occasionally high later.
    • Weather

      Occasional rain or showers, thundery at times.
    • Visibility

      Moderate or good, occasionally poor.
  11. Denmark Strait

    Storm warning issued 4 December 08:00 UTC

    Northeasterly winds will reach storm force 10 in the southwest of Denmark Strait and in the far northwest of West Northern Section between 041200UTC and 050000UTC. At 040000UTC, low 40 north 49 west 987 expected 46 north 36 west 962 by 050000UTC. Winds will reach storm force 10 between 25 and 100 miles of the centre in the southern semicircle between 041800UTC and 050500UTC.

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    • Wind

      Northerly 5 or 6 at first in south, otherwise variable 3 or 4.
    • Sea State

      Smooth or slight, occasionally moderate in south.
    • Weather

      Occasional snow later in south.
    • Visibility

      Moderate or good, occasionally very poor later in south.
  12. North Iceland

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    • Wind

      Cyclonic 5 to 7, occasionally gale 8 at first, becoming variable 3 or 4, then becoming easterly or southeasterly 5 or 6 in west.
    • Sea State

      Moderate or rough, occasionally very rough at first.
    • Weather

      Occasional sleet or snow, turning to rain in southeast, fog patches in south.
    • Visibility

      Moderate or good, occasionally very poor. Occasional light or moderate icing at first in northwest, with temperatures ms02 to ms05.
  13. Norwegian Basin

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    • Wind

      Westerly or southwesterly, veering northwesterly later, 5 to 7, increasing gale 8 at times, occasionally severe gale 9 for a time in east, becoming variable 3 or 4 later in northwest.
    • Sea State

      Moderate or rough, occasionally very rough in northeast.
    • Weather

      Occasional rain or showers, wintry later in east, fog patches at first in west.
    • Visibility

      Moderate or good, occasionally poor, or very poor at first in west.