Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 121200UTC, low 64 north 09 west 993, losing its identity. High 47 north 32 west 1036 slow moving with little change. New high expected 67 north 18 west 1016 by 131200UTC

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Northerly 4 or 5, backing northwesterly 4 to 6, occasionally 7 later in east.
Sea state
Moderate becoming rough, occasionally very rough later.
Weather
Showers later.
Visibility
Good occasionally moderate later.

Shannon

Wind
Northwesterly 5 to 7, occasionally gale 8 until later in northeast.
Sea state
Moderate or rough, becoming rough or very rough.
Weather
Fair then showers.
Visibility
Good.

Rockall

Wind
Northwest 6 to gale 8, veering north 4 to 6 later.
Sea state
Rough or very rough, becoming very rough or high for a time.
Weather
Squally showers.
Visibility
Good occasionally poor.

Bailey

Wind
Northwest 6 to gale 8, veering north 4 to 6 later.
Sea state
Rough or very rough, becoming very rough or high for a time.
Weather
Squally showers.
Visibility
Good occasionally poor.

Faeroes

Wind
Cyclonic 5 to 7, becoming northerly 4 to 6 later.
Sea state
Rough or very rough becoming moderate or rough later.
Weather
Rain or showers.
Visibility
Good occasionally poor.

Southeast Iceland

Wind
Cyclonic 5 to 7, occasionally gale 8 at first, becoming northerly 4 to 6 later.
Sea state
Rough or very rough becoming moderate or rough later.
Weather
Rain or showers.
Visibility
Good occasionally poor.

East Northern Section

Wind
Northwesterly 5 to 7, but 7 or gale 8 at first in southeast, backing westerly or northwesterly 3 to 5.
Sea state
Later.
Weather
Rough or very rough, but high at first in far southeast, becoming moderate or rough.
Visibility
Mainly fair, then occasional rain. Good, occasionally poor.

West Northern Section

Wind
Westerly or southwesterly, but cyclonic in north, 3 to 5, backing southerly 5 or 6 later in southwest.
Sea state
Moderate or rough, but slight in far northwest.
Weather
Occasional rain and drizzle, fog patches, becoming extensive fog later in southwest.
Visibility
Moderate or good, occasionally very poor, becoming moderate to very poor later in southwest.

East Central Section

Wind
Variable 2 to 4 in southwest, otherwise northerly or northwesterly 4 to 6, occasionally 7 at first in far northeast.
Sea state
Moderate or rough.
Weather
Occasional rain.
Visibility
Good occasionally moderate.

West Central Section

Wind
Variable 2 to 4 in southeast, otherwise southerly or southwesterly 3 to 5, backing southerly 5 to 7 later in west.
Sea state
Moderate, occasionally rough later in west and slight later in east.
Weather
Mainly fair in south, occasional rain, drizzle and fog patches in north.
Visibility
Good in south, moderate or good occasionally very poor in north.

Denmark Strait

Wind
Variable 2 to 4.
Sea state
Moderate or rough becoming slight or moderate later.
Weather
Occasional rain and drizzle, turning to snow in north, freezing rain at first in far south and fog patches later in south.
Visibility
Moderate or good occasionally very poor.

North Iceland

In north of area

Wind
Northerly or northeasterly, becoming variable, 2 to 4.
Sea state
Moderate, becoming slight or moderate later.
Weather
Occasional snow and fog patches.
Visibility
Moderate or good occasionally very poor.

In south of area

Wind
Northerly or northeasterly 5 to 7, decreasing 3 to 5 later.
Sea state
Moderate or rough, becoming slight or moderate later.
Weather
Occasional rain or sleet, fog patches.
Visibility
Moderate or good occasionally very poor.

Norwegian Basin

Wind
Cyclonic becoming northeasterly, 4 to 6.
Sea state
Moderate or rough.
Weather
Rain or showers, perhaps thundery at first in southwest.
Visibility
Good occasionally poor.

Outlook for the following 24 hours

Gales are expected in West Central Section and Norwegian Basin.

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

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.