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High seas forecast

Issued at:

For the period to

General synopsis

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Low 61 north 05 west 990 expected 64 north 03 west 980 by that time. at 221200UTC, high 73 north 35 west 1020 expected 72 north 28 west 1019 by 231200UTC. High 37 north 15 west 1034, slow moving, declining 1033 by same time. Low 67 north 05 east 1003 losing its identity by that time

Sole
Wind
Southwest 5 to 7, perhaps gale 8 later.
Sea state
Rough or very rough, occasionally high later in west.
Weather
Occasional rain or showers.
Visibility
Good, occasionally poor.
Shannon
Wind
South or southwest 6 to gale 8, decreasing 5 at times, perhaps severe gale 9 later.
Sea state
Rough or very rough, occasionally high.
Weather
Occasional rain or squally showers.
Visibility
Good, occasionally poor.
Rockall
Wind
South or southwest 6 to gale 8, decreasing 5 at times.
Sea state
Rough or very rough, occasionally high.
Weather
Occasional rain or squally showers.
Visibility
Good, occasionally poor.
Bailey
Wind
South or southwest 6 to gale 8, decreasing 5 at times.
Sea state
Rough or very rough.
Weather
Occasional rain or squally showers.
Visibility
Good, occasionally poor.
Faeroes
Wind
Cyclonic, becoming south or southwest, 5 to 7.
Sea state
Rough or very rough.
Weather
Occasional rain or showers, squally later.
Visibility
Good, occasionally poor.
Southeast Iceland
High seas storm warning - issued: 20:00 on Mon 22 Jan 2018 UTC

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Easterly or southeasterly winds will reach storm force 10 in East Northern Section and the west of Southeast Iceland north of 63 north until 230200UTC. Northerly or northeasterly winds will reach storm force 10 or violent storm force 11 in the north and west of West Northern Section and in Denmark Strait south of 68 north throughout. Westerly or northwesterly winds will reach storm force 10 in the far south of West Northern Section between 230300UTC and 231800UTC. Westerly or southwesterly, veering northwesterly, winds will reach storm force 10 or violent storm force 11 in the West Central Section at times throughout. Westerly or southwesterly winds will reach storm force 10 in East Central Section after 230200UTC, and in the south of East Northern Section between 230500UTC and 231500UTC. Southwesterly winds will also reach violent storm force 11 in the far northwest of East Central Section between 230400UTC and 230800UTC.

Wind
Easterly 7 to severe gale 9, occasionally storm 10 at first in west, becoming cyclonic 6 to gale 8.
Sea state
Rough or very rough, occasionally high at first in west.
Weather
Occasional rain or sleet.
Visibility
Moderate or poor.
East Northern Section
High seas storm warning - issued: 20:00 on Mon 22 Jan 2018 UTC

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Easterly or southeasterly winds will reach storm force 10 in East Northern Section and the west of Southeast Iceland north of 63 north until 230200UTC. Northerly or northeasterly winds will reach storm force 10 or violent storm force 11 in the north and west of West Northern Section and in Denmark Strait south of 68 north throughout. Westerly or northwesterly winds will reach storm force 10 in the far south of West Northern Section between 230300UTC and 231800UTC. Westerly or southwesterly, veering northwesterly, winds will reach storm force 10 or violent storm force 11 in the West Central Section at times throughout. Westerly or southwesterly winds will reach storm force 10 in East Central Section after 230200UTC, and in the south of East Northern Section between 230500UTC and 231500UTC. Southwesterly winds will also reach violent storm force 11 in the far northwest of East Central Section between 230400UTC and 230800UTC.

In north

Wind
Cyclonic, becoming easterly or southeasterly, 7 to severe gale 9, occasionally storm 10 at first in north, then decreasing 5 to 7 for a time.
Sea state
Very rough or high.
Weather
Occasional rain or squally showers, wintry in north and west.
Visibility
Moderate or good, occasionally poor, or very poor in north.

In south

Wind
Southwesterly 6 to gale 8, becoming cyclonic 7 to severe gale 9, increasing storm 10 for a time.
Sea state
Very rough or high, occasionally very high in south.
Weather
Occasional rain or squally showers, wintry at times in west.
Visibility
Moderate or good, occasionally poor.
West Northern Section
High seas storm warning - issued: 20:00 on Mon 22 Jan 2018 UTC

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Easterly or southeasterly winds will reach storm force 10 in East Northern Section and the west of Southeast Iceland north of 63 north until 230200UTC. Northerly or northeasterly winds will reach storm force 10 or violent storm force 11 in the north and west of West Northern Section and in Denmark Strait south of 68 north throughout. Westerly or northwesterly winds will reach storm force 10 in the far south of West Northern Section between 230300UTC and 231800UTC. Westerly or southwesterly, veering northwesterly, winds will reach storm force 10 or violent storm force 11 in the West Central Section at times throughout. Westerly or southwesterly winds will reach storm force 10 in East Central Section after 230200UTC, and in the south of East Northern Section between 230500UTC and 231500UTC. Southwesterly winds will also reach violent storm force 11 in the far northwest of East Central Section between 230400UTC and 230800UTC.

In northwest

Wind
Cyclonic, mainly northerly or northeasterly, gale 8 to storm 10, increasing violent storm 11 at times.
Sea state
High or very high.
Weather
Sleet or snow, with wintry squally showers at times later.
Visibility
Moderate or poor, occasionally very poor.

In southeast

Wind
Cyclonic 6 to gale 8, increasing severe gale 9 at times, but occasionally storm 10 in far south and at first in far north.
Sea state
Very rough or high, occasionally very high in south and west.
Weather
Occasional rain or squally showers, wintry at times.
Visibility
Moderate or good, occasionally poor.
East Central Section
High seas storm warning - issued: 20:00 on Mon 22 Jan 2018 UTC

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Easterly or southeasterly winds will reach storm force 10 in East Northern Section and the west of Southeast Iceland north of 63 north until 230200UTC. Northerly or northeasterly winds will reach storm force 10 or violent storm force 11 in the north and west of West Northern Section and in Denmark Strait south of 68 north throughout. Westerly or northwesterly winds will reach storm force 10 in the far south of West Northern Section between 230300UTC and 231800UTC. Westerly or southwesterly, veering northwesterly, winds will reach storm force 10 or violent storm force 11 in the West Central Section at times throughout. Westerly or southwesterly winds will reach storm force 10 in East Central Section after 230200UTC, and in the south of East Northern Section between 230500UTC and 231500UTC. Southwesterly winds will also reach violent storm force 11 in the far northwest of East Central Section between 230400UTC and 230800UTC.

Wind
Westerly or southwesterly 6 to gale 8, increasing severe gale 9 or storm 10, occasionally violent storm 11 for a time in far northwest.
Sea state
Very rough or high, occasionally very high.
Weather
Occasional rain or squally showers, wintry at times in far northwest.
Visibility
Moderate or poor.
West Central Section
High seas storm warning - issued: 20:00 on Mon 22 Jan 2018 UTC

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Easterly or southeasterly winds will reach storm force 10 in East Northern Section and the west of Southeast Iceland north of 63 north until 230200UTC. Northerly or northeasterly winds will reach storm force 10 or violent storm force 11 in the north and west of West Northern Section and in Denmark Strait south of 68 north throughout. Westerly or northwesterly winds will reach storm force 10 in the far south of West Northern Section between 230300UTC and 231800UTC. Westerly or southwesterly, veering northwesterly, winds will reach storm force 10 or violent storm force 11 in the West Central Section at times throughout. Westerly or southwesterly winds will reach storm force 10 in East Central Section after 230200UTC, and in the south of East Northern Section between 230500UTC and 231500UTC. Southwesterly winds will also reach violent storm force 11 in the far northwest of East Central Section between 230400UTC and 230800UTC.

Wind
Cyclonic at first in far north, otherwise westerly or southwesterly, veering northwesterly, gale 8 to storm 10, increasing violent storm 11 at times.
Sea state
High or very high.
Weather
Squally showers, wintry at times except in southeast.
Visibility
Moderate or poor.
Denmark Strait
High seas storm warning - issued: 20:00 on Mon 22 Jan 2018 UTC

At 221200UTC, low 57 north 40 west 968 expected 58 north 26 west 963 by 231200UTC. Lows 61 north 32 west 963 and 60 north 29 west 969, merging, expected 56 north 31 west 967 by same time. Easterly or southeasterly winds will reach storm force 10 in East Northern Section and the west of Southeast Iceland north of 63 north until 230200UTC. Northerly or northeasterly winds will reach storm force 10 or violent storm force 11 in the north and west of West Northern Section and in Denmark Strait south of 68 north throughout. Westerly or northwesterly winds will reach storm force 10 in the far south of West Northern Section between 230300UTC and 231800UTC. Westerly or southwesterly, veering northwesterly, winds will reach storm force 10 or violent storm force 11 in the West Central Section at times throughout. Westerly or southwesterly winds will reach storm force 10 in East Central Section after 230200UTC, and in the south of East Northern Section between 230500UTC and 231500UTC. Southwesterly winds will also reach violent storm force 11 in the far northwest of East Central Section between 230400UTC and 230800UTC.

Wind
Northeasterly gale 8 to storm 10, occasionally violent storm 11 in south.
Sea state
Rough or very rough, occasionally high.
Weather
Occasional sleet or snow.
Visibility
Moderate or poor, occasionally very poor. Occasional severe icing, with temperatures ms05 to ms08.
North Iceland

In north

Wind
Variable 3 or 4, becoming easterly or northeasterly 5 to 7, occasionally gale 8 later in south.
Sea state
Slight or moderate, becoming rough later in south.
Weather
Snow showers.
Visibility
Moderate or good, occasionally very poor. Occasional light or moderate icing in south, with temperatures ms03 to ms06.

In south

Wind
Easterly or northeasterly, becoming cyclonic in south, 6 to gale 8, increasing severe gale 9 at times.
Sea state
Rough or very rough, occasionally moderate at first in north.
Weather
Occasional rain or sleet, wintry showers in northwest.
Visibility
Moderate or good, occasionally poor. Occasional light or moderate icing in far northwest, with temperatures ms03 to ms06.
Norwegian Basin
Wind
Cyclonic 6 to gale 8, increasing severe gale 9 at times.
Sea state
Moderate at first in east, otherwise rough or very rough, occasionally high.
Weather
Occasional rain or sleet.
Visibility
Moderate or good, occasionally poor.

Outlook for following 24 hours

Storms expected in Rockall, East Northern Section, West Northern Section, East Central Section, West Central Section, Denmark Strait, north Iceland and Norwegian Basin. Gales or severe gales expected in all areas.

Unscheduled storm warnings are broadcast via Safetynet and in bulletin WONT54 EGRR available via some internet and ftpmail outlets

High seas forecast and storm warnings

High seas forecasts are issued twice daily at 0930 and 2130 GMT and cover the next 24 hours and outlooks for the following 24 hours.

The part of the North Atlantic known as Metarea I is divided into twelve sea areas, six of which are also in the Shipping forecast.

The high seas forecast contains a general synopsis and sea-area forecasts containg forecast wind direction and force, weather and visibility for the next 24 hours with an outlook for the following 24 hours.

 

In the UK, the Maritime & Coastguard Agency (MCA) is responsible for the provision of Maritime Safety Information (MSI) to ships at sea, which includes the broadcast of warnings and forecasts. The Met Office initiates warnings and prepares routine forecasts for dissemination on behalf of the MCA.

Caution: The internet is not part of the Maritime Safety Information system and should never be relied upon as the only means to obtain the latest forecast and warning information. Access to the service may be interrupted or delayed from time to time, updates may also be delayed. Please refer to GMDSS services, INMARSAT SafetyNET or international NAVTEX for the latest information. When using these web pages, always check that the page on your screen is not from your cache. Use the Refresh or Reload button if in any doubt.

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