Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 281200UTC, low 49 north 37 west 960 moving steadily east and losing its identity by 291200UTC. New low moving steadily east expected 51 north 20 west 967 by same time. New low moving rapidly northeast expected 45 north 33 west 988 by that time. at 281200UTC, low 56 north 22 west 966 losing its identity by 291200UTC. New low expected 54 north 39 west 968 by that time

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Cyclonic 5 to 7, increasing gale 8 at times, perhaps severe gale 9 later.
Sea state
Very rough or high, occasionally very high later in west.
Weather
Showers.
Visibility
Moderate or poor.

Shannon

Wind
Variable 3 at first in southwest, otherwise cyclonic 6 to gale 8.
Sea state
Rough or very rough, occasionally high later in southwest.
Weather
Showers.
Visibility
Good, occasionally poor.

Rockall

Wind
Southeast 6 to gale 8.
Sea state
Rough or very rough.
Weather
Showers.
Visibility
Moderate or good.

Bailey

Wind
In south, southeasterly 5 to 7, occasionally gale 8 later. in north, southeasterly 5 to 7, occasionally gale 8 at first.
Sea state
In south, rough or very rough. in north, rough or very rough, occasionally high at first.
Weather
In south, showers. in north, rain or showers.
Visibility
In south, moderate or good. in north, good, occasionally poor.

Faeroes

Wind
Southeasterly 5 to 7, occasionally gale 8 at first.
Sea state
Rough or very rough.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
In east, southeasterly 5 to 7, occasionally gale 8 at first. in west, easterly 6 to gale 8, occasionally severe gale 9 at first.
Sea state
In east, rough or very rough, occasionally high at first. in west, very rough or high becoming rough or very rough.
Weather
In east, rain or showers. in west, rain.
Visibility
In east, good, occasionally poor. in west, moderate or poor.

East Northern Section

High seas storm warning
Issued:

At 281200UTC, low 49 north 37 west 960 moving steadily east and losing its identity by 291200UTC and new low moving steadily east expected 51 north 20 west 967 by same time. Westerly winds are expected to reach storm force 10 south of 49 north in West Central Section in the western half of the area until 290200UTC but violent storm force 11 south of 49 north in the eastern half of the area until 290800UTC. Westerly winds are then expected to reach storm force 10 to violent storm force 11 south of 49 north in East Central Section in the western half of the area until 291200UTC and then storm force 10 south of 49 north in the eastern half of the area from 290300UTC and until 291800UTC. New low moving rapidly northeast expected 45 north 33 west 988 by 291200UTC. Westerly winds are expected to reach storm force 10 in the far southwest of East Central Section from 291600UTC. Finally easterly winds are expected to reach storm force 10 near the south Iceland coast in East Northern Section east of 21 west until 290100UTC.

In north

Wind
Easterly or northeasterly, severe gale 9 or storm 10 at first near south iceland, otherwise 6 to gale 8, decreasing 4 to 6 later.
Sea state
Very rough or high becoming rough or very rough.
Weather
Occasional rain or showers, squally at times.
Visibility
Moderate or good, occasionally poor.

In south

Wind
Cyclonic 5 to 7, decreasing 4 at times in south, but occasionally gale 8 in east and at first in northwest.
Sea state
Rough or very rough occasionally high.
Weather
Showers, squally at times.
Visibility
Moderate or good, occasionally poor.

West Northern Section

In north

Wind
Northeasterly 6 to gale 8, occasionally severe gale 9 at first.
Sea state
Very rough or high.
Weather
Occasional rain in far south, otherwise squally showers, wintry in northwest.
Visibility
Moderate or poor, occasionally good. Occasional light icing expected in far northwest.

In south

Wind
Northeasterly 7 to severe gale 9 until later in far north and northwest, otherwise cyclonic 4 to 6, occasionally 7 later in southwest.
Sea state
Very rough or high.
Weather
Occasional rain or showers, squally in far north and northwest.
Visibility
Moderate or poor, occasionally good.

East Central Section

High seas storm warning
Issued:

At 281200UTC, low 49 north 37 west 960 moving steadily east and losing its identity by 291200UTC and new low moving steadily east expected 51 north 20 west 967 by same time. Westerly winds are expected to reach storm force 10 south of 49 north in West Central Section in the western half of the area until 290200UTC but violent storm force 11 south of 49 north in the eastern half of the area until 290800UTC. Westerly winds are then expected to reach storm force 10 to violent storm force 11 south of 49 north in East Central Section in the western half of the area until 291200UTC and then storm force 10 south of 49 north in the eastern half of the area from 290300UTC and until 291800UTC. New low moving rapidly northeast expected 45 north 33 west 988 by 291200UTC. Westerly winds are expected to reach storm force 10 in the far southwest of East Central Section from 291600UTC. Finally easterly winds are expected to reach storm force 10 near the south Iceland coast in East Northern Section east of 21 west until 290100UTC.

In north

Wind
Variable 2 to 4 at first in far northeast, otherwise cyclonic 6 to gale 8, occasionally severe gale 9 in west and decreasing 5 at times elsewhere.
Sea state
Very rough or high, occasionally rough in northeast.
Weather
Occasional rain or showers, squally at times and perhaps thundery.
Visibility
Moderate or poor, occasionally good.

In south

Wind
Cyclonic mainly westerly or southwesterly, 5 to 7 at first in far east, otherwise gale 8 to storm 10, occasionally violent storm 11 until later in west.
Sea state
Very rough or high becoming high or very high.
Weather
Rain or squally thundery showers.
Visibility
Poor, occasionally moderate.

West Central Section

High seas storm warning
Issued:

At 281200UTC, low 49 north 37 west 960 moving steadily east and losing its identity by 291200UTC and new low moving steadily east expected 51 north 20 west 967 by same time. Westerly winds are expected to reach storm force 10 south of 49 north in West Central Section in the western half of the area until 290200UTC but violent storm force 11 south of 49 north in the eastern half of the area until 290800UTC. Westerly winds are then expected to reach storm force 10 to violent storm force 11 south of 49 north in East Central Section in the western half of the area until 291200UTC and then storm force 10 south of 49 north in the eastern half of the area from 290300UTC and until 291800UTC. New low moving rapidly northeast expected 45 north 33 west 988 by 291200UTC. Westerly winds are expected to reach storm force 10 in the far southwest of East Central Section from 291600UTC. Finally easterly winds are expected to reach storm force 10 near the south Iceland coast in East Northern Section east of 21 west until 290100UTC.

In north

Wind
Cyclonic 5 to 7, occasionally gale 8 in south and west and decreasing 4 at times elsewhere.
Sea state
Very rough or high.
Weather
Occasional rain or showers, squally at times.
Visibility
Moderate or good, occasionally poor.

In area south of 49 north

Wind
Westerly or southwesterly severe gale 9 or storm 10, occasionally violent storm 11 at first in east, decreasing 7 to severe gale 9.
Sea state
Very high becoming high or very high.
Weather
Rain or squally thundery showers, turning wintry at times.
Visibility
Poor, occasionally very poor.

In rest of area

Wind
Cyclonic 5 to 7, becoming westerly or southwesterly 7 to severe gale 9.
Sea state
High.
Weather
Occasional rain or squally thundery showers, perhaps turning wintry at times.
Visibility
Moderate or poor.

Denmark Strait

Wind
Northeasterly 6 to gale 8, occasionally severe gale 9 at first in far southwest.
Sea state
Rough or very rough, becoming moderate or rough in east.
Weather
Occasional sleet or snow.
Visibility
Moderate or good, occasionally poor. Light or moderate icing expected near the ice edge and in the north with temperatures ms03 to ms06.

North Iceland

In north

Wind
Cyclonic 3 to 5.
Sea state
Moderate, occasionally rough in far south.
Weather
Snow showers.
Visibility
Good, occasionally very poor. Light or moderate icing expected near the ice edge in far southwest with temperatures ms03 to ms06.

In south

Wind
Cyclonic mainly easterly 4 to 6, occasionally 7 in far south and southwest.
Sea state
Moderate or rough, occasionally very rough at first in far south.
Weather
Sleet or snow showers.
Visibility
Good, occasionally poor. Light or moderate icing expected near the ice edge in far northwest with temperatures ms03 to ms06.

Norwegian Basin

Wind
Cyclonic 3 to 5 in far southeast, otherwise easterly or southeasterly 4 to 6.
Sea state
Moderate or rough, occasionally very rough at first in southwest.
Weather
Showers in west, mainly fair in east.
Visibility
Good, occasionally moderate in west. Occasional light icing later in far northeast with temperatures ms03 or ms04.

Outlook for following 24 hours

Violent storms expected in East Central Section and West Central Section with severe gales in Sole, Shannon, Rockall and West Northern Section. Gales expected in Bailey, East Northern Section and Denmark Strait.

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.