Weather High Seas

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Map of high seas locations

The general synopsis at 20 December 08:00 UTC

At 200000UTC, low 57 north 39 west 987 expected 64 north 38 west 956 by 210000UTC. High 48 north 16 west 1035 expected 46 north 02 west 1038 by same time. New high expected 78 north 15 west 1012 by that time. Lows 66 north 10 east 978 and 72 north 20 east 979 both losing their identities

Issued 20 December 08:00 UTC

  1. Sole

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    • Wind

      West 4 or 5, backing southwest 5 or 6.
    • Sea State

      Very rough, becoming rough.
    • Weather

      Fair then occasional drizzle.
    • Visibility

      Good, occasionally poor.
  2. Shannon

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    • Wind

      West, backing southwest, 5 to 7.
    • Sea State

      Moderate or rough, but very rough for a time.
    • Weather

      Showers then occasional drizzle.
    • Visibility

      Good occasionally poor.
  3. Rockall

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    • Wind

      Northwest, backing southwest, 6 to gale 8.
    • Sea State

      Very rough or high.
    • Weather

      Squally showers then occasional rain.
    • Visibility

      Moderate or good, occasionally poor.
  4. Bailey

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    • Wind

      Northwest, backing southwest, 6 to gale 8.
    • Sea State

      Very rough or high.
    • Weather

      Squally showers then occasional rain.
    • Visibility

      Moderate or good, occasionally poor.
  5. Faeroes

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    • Wind

      Northwesterly, backing southerly, 6 to gale 8.
    • Sea State

      Rough or very rough, occasionally high at first.
    • Weather

      Wintry showers then rain.
    • Visibility

      Moderate, occasionally poor.
  6. Southeast Iceland

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    • Wind

      Northwesterly 5 or 6, backing southerly or southeasterly 6 to gale 8.
    • Sea State

      Rough or very rough.
    • Weather

      Rain or wintry showers.
    • Visibility

      Moderate, occasionally poor.
  7. East Northern Section

    Storm warning issued 20 December 08:00 UTC

    At 200000UTC, low 57 north 39 west 987 expected 64 north 38 west 956 by 210000UTC. Northerly or northeasterly winds will reach storm force 10 to hurricane force 12 in the far northwest of West Northern Section and the far west of Denmark Strait. Storm force 10 or violent storm force 11 westerly winds will develop between 57 north and 62 north in West Northern Section after 201800UTC, and in East Northern Section after 210600UTC.

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    • Wind

      Southerly, veering westerly or southwesterly, 7 to severe gale 9, occasionally storm 10 later in far west.
    • Sea State

      High or very high.
    • Weather

      Occasional rain then squally wintry showers.
    • Visibility

      Moderate or poor.
  8. West Northern Section

    Storm warning issued 20 December 08:00 UTC

    At 200000UTC, low 57 north 39 west 987 expected 64 north 38 west 956 by 210000UTC. Northerly or northeasterly winds will reach storm force 10 to hurricane force 12 in the far northwest of West Northern Section and the far west of Denmark Strait. Storm force 10 or violent storm force 11 westerly winds will develop between 57 north and 62 north in West Northern Section after 201800UTC, and in East Northern Section after 210600UTC.

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    • Wind

      Westerly or southwesterly 7 to severe gale 9, increasing storm 10 or violent storm 11 later.
    • Sea State

      Very rough or high, occasionally very high later.
    • Weather

      Occasional rain then snow showers.
    • Visibility

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

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    • Wind

      Southerly 4 or 5, veering southwesterly 5 or 6, occasionally 7 later.
    • Sea State

      Rough or very rough, occasionally moderate later.
    • Weather

      Drizzle at times.
    • Visibility

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

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    • Wind

      Southwesterly, veering northerly or northwesterly in northwest, 5 to 7, increasing gale 8 at times.
    • Sea State

      Rough or very rough, occasionally moderate in far south.
    • Weather

      Rain and drizzle, wintry showers in far northwest.
    • Visibility

      Moderate or good, occasionally poor.
  11. Denmark Strait

    Storm warning issued 20 December 08:00 UTC

    At 200000UTC, low 57 north 39 west 987 expected 64 north 38 west 956 by 210000UTC. Northerly or northeasterly winds will reach storm force 10 to hurricane force 12 in the far northwest of West Northern Section and the far west of Denmark Strait. Storm force 10 or violent storm force 11 westerly winds will develop between 57 north and 62 north in West Northern Section after 201800UTC, and in East Northern Section after 210600UTC.

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    • Wind

      Easterly or northeasterly 5 to 7, occasionally gale 8 in far west, increasing severe gale 9 to violent storm 11, occasionally hurricane force 12 later in far southwest, then becoming cyclonic 5 to 7 later in far south.
    • Sea State

      Rough or very rough, occasionally high in far south.
    • Weather

      Rain or snow.
    • Visibility

      Poor or very poor. Moderate to severe icing near ice edge with temperatures ms02 to ms05.
  12. North Iceland

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    • Wind

      Northerly 5 to 7, occasionally gale 8 at first in far east, becoming variable 3 or 4, then becoming easterly 7 to severe gale 9.
    • Sea State

      Rough or very rough, occasionally high at first.
    • Weather

      Snow showers, rain and snow later.
    • Visibility

      Moderate or good, occasionally very poor later.
  13. Norwegian Basin

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    • Wind

      Northerly 4 or 5, increasing 6 or 7, then backing northwesterly 5 to 7 later.
    • Sea State

      Very rough.
    • Weather

      Squally wintry showers.
    • Visibility

      Good, occasionally moderate.