Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 270000UTC, low 57 north 27 west 989 expected 58 north 19 west 987 by 280000UTC. Low 55 north 12 west 1004 expected 62 north 13 west 992 by same time. Low 73 north 12 west 997 expected 73 north 03 west 1007 by that time. at 270000UTC, low 65 north 37 west 996 losing its identity. High 63 north 07 east 1018 dissipating

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
South veering west 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain.
Visibility
Good, occasionally moderate.

Shannon

Wind
South 4 or 5, veering southwest 5 to 7.
Sea state
Moderate becoming rough, occasionally very rough later.
Weather
Rain then showers.
Visibility
Good, occasionally poor at first.

Rockall

Wind
Cyclonic 4 to 6, becoming southwest 5 to 7, occasionally gale 8 later.
Sea state
Moderate or rough, becoming very rough or high later.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Cyclonic 4 to 6, becoming south 5 to 7 later.
Sea state
Moderate or rough, occasionally very rough later in far southwest.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Faeroes

Wind
East veering south 4 to 6.
Sea state
Moderate, occasionally slight.
Weather
Rain or showers, fog patches at first.
Visibility
Moderate or good, occasionally very poor at first.

Southeast Iceland

Wind
Southeasterly 4 or 5, backing easterly 5 to 7, then becoming cyclonic 6 to gale 8 later.
Sea state
Moderate or rough.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

East Northern Section

Wind
Cyclonic 5 to 7, occasionally gale 8 in far south.
Sea state
Moderate or rough, becoming very rough or high in far south.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

West Northern Section

In north

Wind
Cyclonic 3 to 5, occasionally 6 at first in far southeast, and later in far northwest.
Sea state
Moderate or rough.
Weather
Rain at times in far east and far north.
Visibility
Good, occasionally poor in far east and far north.

In south

Wind
Cyclonic 3 to 5 in far northwest, otherwise westerly or northwesterly 5 to 7, occasionally gale 8 at first in far southeast.
Sea state
Moderate or rough, occasionally very rough in far southeast.
Weather
Rain at times in far east.
Visibility
Good, occasionally poor.

East Central Section

Wind
Westerly or southwesterly 5 to 7, occasionally gale 8 in far north.
Sea state
Rough or very rough, occasionally high in far north.
Weather
Rain or showers, becoming mainly fair later except in far northeast.
Visibility
Good, occasionally poor in northeast.

West Central Section

Wind
Westerly 5 to 7, occasionally gale 8 at first in far northeast, backing southwesterly 4 to 6 later, but then becoming cyclonic 5 to 7 in far southwest.
Sea state
Moderate or rough, occasionally very rough at first in east.
Weather
Rain later in southwest.
Visibility
Moderate or good, occasionally poor later in southwest.

Denmark Strait

Wind
Easterly or northeasterly 4 to 6, increasing 7 or gale 8 later in far west.
Sea state
Slight or moderate, becoming moderate or rough.
Weather
Occasional rain and fog patches.
Visibility
Moderate or poor, occasionally very poor.

North Iceland

In north

Wind
Cyclonic 4 to 6, becoming variable 2 to 4 later.
Sea state
Slight or moderate.
Weather
Occasional rain or drizzle and fog patches, fog banks developing later near ice edge.
Visibility
Moderate or poor, occasionally very poor.

In south

Wind
Variable 2 to 4, becoming cyclonic 4 to 6, then easterly 5 to 7 later in north.
Sea state
Slight or moderate, becoming moderate or rough later.
Weather
Occasional rain and fog patches.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Easterly 3 to 5, veering southeasterly or southerly 4 to 6.
Sea state
Moderate.
Weather
Occasional rain and fog patches.
Visibility
Moderate or good, occasionally very poor.

Outlook for the following 24 hours

Gales expected in Rockall, East Northern Section, both central sections, Denmark Strait and north Iceland.

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.

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