Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 200000UTC, low 64 north 26 west 995 expected 65 north 29 west 993 by 210000UTC. Low 57 north 25 west 1005 expected 53 north 18 west 1005 by same time. High 50 north 48 west 1029 expected 47 north 32 west 1026 by that time

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Variable 2 to 4.
Sea state
Slight or moderate.
Weather
Fog patches at first.
Visibility
Good, occasionally very poor at first.

Shannon

Wind
Variable becoming southerly or southwesterly except in far east, 2 to 4, occasionally 5 later.
Sea state
Slight or moderate.
Weather
Fog patches at first.
Visibility
Good, occasionally very poor at first.

Rockall

Wind
Variable becoming southerly or southwesterly except in far east, 2 to 4, occasionally 5 later.
Sea state
Slight or moderate.
Weather
Fog patches at first.
Visibility
Good, occasionally very poor at first.

Bailey

Wind
Southerly or southeasterly, 3 to 5.
Sea state
Moderate, but rough at first in northwest.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

Faeroes

Wind
Southerly or southeasterly, 3 to 5.
Sea state
Moderate.
Weather
Fog patches.
Visibility
Moderate or good, occasionally very poor.

Southeast Iceland

Wind
Southerly or southeasterly 3 to 5.
Sea state
Moderate or rough, becoming moderate.
Weather
Occasional rain, fog patches.
Visibility
Moderate or good, occasionally very poor.

East Northern Section

In north

Wind
Cyclonic 4 to 6, occasionally 7 until later in northwest.
Sea state
Moderate or rough, but very rough in far northwest.
Weather
Occasional rain.
Visibility
Moderate or good.

In south

Wind
Southerly or southeasterly 4 or 5 until later in east, otherwise northerly or northwesterly 5 to 7, occasionally 4 later in west.
Sea state
Moderate or rough.
Weather
Occasional rain.
Visibility
Moderate or good.

West Northern Section

High seas storm warning
Issued:

At 200000UTC, low 64 north 26 west 995 expected 65 north 29 west 993 by 210000UTC. Northerly winds will reach storm force 10 at times in West Northern Section north of 64 north and between 34 west and 30 west, moderating slowly after 210300UTC. Northeasterly winds will also reach storm force 10 at times throughout in Denmark Strait south of 68 north and between 34 west and 23 west.

In north

Wind
Variable 2 to 4 in far west, otherwise cyclonic 7 to severe gale 9, occasionally storm 10 until later in northeast.
Sea state
Very rough or high in north, otherwise rough or very rough.
Weather
Sleet or snow in far north, otherwise occasional rain.
Visibility
Poor or very poor in far north, otherwise moderate or good.

In south

Wind
Westerly or northwesterly 3 to 5, occasionally 6 in east, becoming variable 3 or less in northwest.
Sea state
Moderate or rough, occasionally very rough later in far north.
Weather
Occasional rain later.
Visibility
Good, occasionally moderate later.

East Central Section

In north

Wind
Southerly 4 to 6 until later in east, otherwise northwesterly 5 to 7, occasionally gale 8 in north.
Sea state
Moderate or rough, occasionally very rough in north.
Weather
Occasional rain.
Visibility
Moderate or good, occasionally poor in north.

In south

Wind
Southerly or southwesterly 3 to 5 in east until later, otherwise northwesterly 4 to 6, occasionally 7 at first in north.
Sea state
Moderate or rough.
Weather
Occasional rain until later.
Visibility
Moderate or good, occasionally poor at first.

West Central Section

Wind
Northerly or northwesterly 4 to 6, becoming variable 2 to 4.
Sea state
Moderate or rough, becoming moderate.
Weather
Mainly fair.
Visibility
Good.

Denmark Strait

High seas storm warning
Issued:

At 200000UTC, low 64 north 26 west 995 expected 65 north 29 west 993 by 210000UTC. Northerly winds will reach storm force 10 at times in West Northern Section north of 64 north and between 34 west and 30 west, moderating slowly after 210300UTC. Northeasterly winds will also reach storm force 10 at times throughout in Denmark Strait south of 68 north and between 34 west and 23 west.

Wind
Easterly or northeasterly 4 to 6 in far south throughout, otherwise northeasterly 7 to severe gale 9, occasionally storm 10 south of 68 north.
Sea state
Rough or very rough, occasionally high in west.
Weather
Occasional rain far south, otherwise sleet or snow.
Visibility
Moderate or good far south, otherwise poor or very poor. Light, occasionally moderate icing within 150 miles of greenland coast with temperatures of minus 02 to minus 04.

North Iceland

In north

Wind
Variable 2 to 4, becoming easterly or northeasterly 4 to 6 later in south, occasionally 7 later in south.
Sea state
Slight or moderate, becoming moderate or rough later.
Weather
Occasionally sleet or snow later in far south.
Visibility
Good, occasionally very poor later in far south. Occasional light icing in far southwest with temperatures of minus 02 to minus 04.

In south

Wind
Easterly or northeasterly 6 to gale 8, becoming variable 2 to 4 later in south.
Sea state
Moderate or rough, but very rough in north.
Weather
Occasional rain far south, otherwise sleet or snow.
Visibility
Moderate or good far south, otherwise poor or very poor. Occasional light icing in far northwest with temperatures of minus 02 to minus 04.

Norwegian Basin

In west

Wind
Southerly or southeasterly 3 to 5.
Sea state
Moderate.
Weather
Occasional rain.
Visibility
Moderate or good.

In east

Wind
Easterly or northeasterly 3 to 5.
Sea state
Moderate.
Weather
Mainly fair.
Visibility
Good.

Outlook for following 24 hours

Severe gales expected in Denmark Strait. Gales expected in East Central Section and north Iceland.

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.