Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 140000UTC, low 49 north 42 west 968 expected 54 north 38 west 971 by 150000UTC. Low 65 north 31 west 986 losing its identity by same time. High 48 north 15 east 1042 moving away to the east by that time. New high expected 49 north 01 west 1036 by 150000UTC. New lows expected 69 north 15 west 977, 61 north 31 west 973 and 44 north 39 west 999 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Southerly or southeasterly 4 or 5.
Sea state
Rough, becoming moderate or rough in east.
Weather
Occasional drizzle at first in northwest, otherwise fair.
Visibility
Moderate or good.

Shannon

Wind
Southwesterly 3 to 5, increasing 6 or 7 later in north.
Sea state
Rough, occasionally very rough in northwest.
Weather
Drizzle and fog patches at first.
Visibility
Poor or very poor, becoming good.

Rockall

Wind
Southwest 5 or 6, increasing 7 or gale 8.
Sea state
Rough or very rough.
Weather
Occasional rain or drizzle.
Visibility
Good, occasionally poor.

Bailey

Wind
Southwest 5 to 7, backing south or southwest 6 to gale 8.
Sea state
Rough or very rough, occasionally high.
Weather
Showers, then rain or drizzle.
Visibility
Good, becoming moderate or poor for a time.

Faeroes

Wind
Southwest 5 to 7, backing south or southwest 6 to gale 8.
Sea state
Rough or very rough, occasionally high.
Weather
Showers, then rain or drizzle.
Visibility
Good, becoming moderate or poor for a time.

Southeast Iceland

Wind
Southwesterly 5 or 6, increasing 7 or gale 8, perhaps severe gale 9 later.
Sea state
Rough or very rough, occasionally high.
Weather
Showers, occasional rain or drizzle.
Visibility
Good, becoming moderate or poor for a time.

East Northern Section

In north

Wind
Southerly or southeasterly, veering southwesterly, 6 to gale 8, occasionally severe gale 9 in west.
Sea state
Very rough, but occasionally rough at first in north, becoming very rough or high.
Weather
Rain or drizzle, showers later in south.
Visibility
Moderate or poor, becoming good later.

In south

Wind
Southerly, veering southwesterly, 6 to gale 8, occasionally severe gale 9 in west.
Sea state
Very rough, becoming very rough or high.
Weather
Rain or drizzle for a time, showers later in west.
Visibility
Good, becoming moderate or poor for a time.

West Northern Section

High seas storm warning
Issued:

At 140000UTC, low 49 north 42 west 968 expected 54 north 38 west 971 by 150000UTC. Southwesterly winds are expected to reach storm force 10 in the southeastern quadrant of the low, within 100 and 150 miles of the low centre until 141500UTC. In addition northerly or northeasterly winds are expected to reach storm force 10 to violent storm force 11 within 100 miles of the Greenland coast, mainly over the ice, in Denmark Strait throughout, gradually becoming confined to north of 67 north from 141500UTC but broadening to within 150 miles of the Greenland coast, this extending into sea area north Iceland from 141500UTC until 150600UTC between 68 and 73 north and west of 18 west.

In northwest

Wind
Northeasterly 5 or 6, but cyclonic 4 or 5 at first in north, backing northerly 6 to gale 8, then northwesterly 4 to 6 later.
Sea state
Rough or very rough, occasionally high later in southeast.
Weather
Occasional rain, sleet and snow at first, then wintry showers, moderate or poor at first, otherwise moderate or good, occasionally poor.
Visibility
Occasional light or moderate icing expected in north.

In southeast

Wind
Southerly, veering southwesterly 6 to gale 8, occasionally severe gale 9, becoming cyclonic gale 8 to storm 10 later in south.
Sea state
Rough or very rough, becoming very rough or high, occasionally very high later in south.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

East Central Section

Wind
Southerly 6 to gale 8, decreasing 4 to 6 later except in northwest.
Sea state
Rough or very rough, becoming very rough or high in northwest.
Weather
Rain or drizzle at times, then mainly fair later in west.
Visibility
Moderate or good, occasionally poor.

West Central Section

High seas storm warning
Issued:

At 140000UTC, low 49 north 42 west 968 expected 54 north 38 west 971 by 150000UTC. Southwesterly winds are expected to reach storm force 10 in the southeastern quadrant of the low, within 100 and 150 miles of the low centre until 141500UTC. In addition northerly or northeasterly winds are expected to reach storm force 10 to violent storm force 11 within 100 miles of the Greenland coast, mainly over the ice, in Denmark Strait throughout, gradually becoming confined to north of 67 north from 141500UTC but broadening to within 150 miles of the Greenland coast, this extending into sea area north Iceland from 141500UTC until 150600UTC between 68 and 73 north and west of 18 west.

Wind
Cyclonic, mainly southerly or southwesterly, 7 to severe gale 9, decreasing 6 at times in south, occasionally storm 10 later in northwest.
Sea state
Very rough or high, occasionally very high.
Weather
Occasional rain or showers, perhaps thundery at times, fog patches at first in northwest, becoming mainly fair later in east.
Visibility
Moderate or good, occasionally poor, and very poor at first in northwest.

Denmark Strait

High seas storm warning
Issued:

At 140000UTC, low 49 north 42 west 968 expected 54 north 38 west 971 by 150000UTC. Southwesterly winds are expected to reach storm force 10 in the southeastern quadrant of the low, within 100 and 150 miles of the low centre until 141500UTC. In addition northerly or northeasterly winds are expected to reach storm force 10 to violent storm force 11 within 100 miles of the Greenland coast, mainly over the ice, in Denmark Strait throughout, gradually becoming confined to north of 67 north from 141500UTC but broadening to within 150 miles of the Greenland coast, this extending into sea area north Iceland from 141500UTC until 150600UTC between 68 and 73 north and west of 18 west.

In southeast

Wind
Cyclonic 5 or 6, increasing 6 to gale 8, occasionally severe gale 9.
Sea state
Rough or very rough, occasionally high later.
Weather
Mainly fair then rain, sleet and snow, fog patches near Iceland.
Visibility
Good, becoming moderate or poor, occasionally very poor. Moderate or severe icing developing north of 66 north from 141400utc with temperatures of ms04 to ms07.

In rest of area

Wind
Northerly or northeasterly, storm force 10 to violent storm force 11, decreasing 7 to severe gale 9 later in west.
Sea state
Rough or very rough, occasionally high later in east.
Weather
Sleet or snow at times.
Visibility
Moderate to very poor. Moderate or severe icing expected mainly near ice edge but broadening to within 100 miles of the ice edge from 141200utc, with temperatures of ms05 to ms08, becoming very severe at times north of 67 north with temperatures of ms09 to ms13.

North Iceland

High seas storm warning
Issued:

At 140000UTC, low 49 north 42 west 968 expected 54 north 38 west 971 by 150000UTC. Southwesterly winds are expected to reach storm force 10 in the southeastern quadrant of the low, within 100 and 150 miles of the low centre until 141500UTC. In addition northerly or northeasterly winds are expected to reach storm force 10 to violent storm force 11 within 100 miles of the Greenland coast, mainly over the ice, in Denmark Strait throughout, gradually becoming confined to north of 67 north from 141500UTC but broadening to within 150 miles of the Greenland coast, this extending into sea area north Iceland from 141500UTC until 150600UTC between 68 and 73 north and west of 18 west.

In southeast

Wind
Southwesterly, backing southerly for a time, 4 to 6, increasing 6 to gale 8 later.
Sea state
Rough or very rough, becoming mainly very rough later.
Weather
Mainly fair at first in south, otherwise occasional rain or drizzle, fog patches.
Visibility
Good at first in south, otherwise moderate or poor, occasionally very poor.

In northwest

Wind
Northerly or northeasterly 6 to gale 8, increasing severe gale 9 or storm 10.
Sea state
Moderate or rough, becoming rough or very rough later.
Weather
Snow.
Visibility
Poor or very poor, occasionally moderate. Moderate to severe icing within 100 miles of ice edge north of 70 north.
Wind
Rest of area, cyclonic 4 to 6.
Sea state
Rough, occasionally moderate, becoming rough or very rough later.
Weather
Occasional rain and fog patches in southeast, sleet or snow at times elsewhere.
Visibility
Moderate to very poor. Moderate or severe icing developing west of 14 west from 141200utc with temperatures of ms05 to ms08, becoming very severe at times near ice edge with temperatures of ms010 to ms13.

Norwegian Basin

Wind
Westerly 4 to 6, backing southwesterly 6 to gale 8, occasionally severe gale 9 later in fair east.
Sea state
Rough or very rough.
Weather
Showers at first, rain or drizzle spreading eastwards.
Visibility
Moderate or good, becoming moderate or poor for a time.

Outlook for following 24 hours

Storms expected in, West Northern Section, West Central Section, Denmark Strait and north Iceland. Severe gales expected in Southeast Iceland, East Northern Section and Norwegian Basin, with gales in all other areas except Sole and Shannon.

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

The high seas forecast information

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 containing forecast wind direction and force, weather and visibility for the next 24 hours with an outlook for the following 24 hours.

Marine forecasts disclaimer

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.