Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 111200UTC, low 53 north 28 west 990 expected 61 north 24 west 994 by 121200UTC. Low 42 north 31 west 1009 expected 47 north 21 west 1012 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
In west, southerly 3 to 5. in east, variable 2 to 4.
Sea state
In west, moderate. in east, slight or moderate.
Weather
In west, showers, perhaps thundery. in east, fair.
Visibility
In west, good, occasionally moderate. in east, good, occasionally moderate later.

Shannon

Wind
Southeast 4 to 6, veering south 3 to 5 later.
Sea state
Moderate or rough, becoming moderate later.
Weather
Rain, perhaps thundery, fog patches.
Visibility
Moderate or good, occasionally very poor.

Rockall

Wind
Southeast 4 to 6, veering south 3 to 5 later.
Sea state
Moderate or rough.
Weather
Rain, perhaps thundery, fog patches.
Visibility
Moderate or good, occasionally very poor.

Bailey

Wind
South or southeast 4 to 6.
Sea state
Moderate or rough.
Weather
Rain, fog patches.
Visibility
Moderate or good, occasionally very poor.

Faeroes

Wind
Southeasterly veering southerly, 4 to 6.
Sea state
Slight or moderate, becoming moderate or rough, then moderate later.
Weather
Rain, fog patches.
Visibility
Moderate, occasionally very poor.

Southeast Iceland

Wind
Cyclonic 4 to 6.
Sea state
Slight or moderate, becoming moderate or rough, then moderate later.
Weather
Rain, fog patches.
Visibility
Moderate, occasionally very poor.

East Northern Section

Wind
Cyclonic 4 to 6, occasionally 7 at first in south and just southwest of iceland.
Sea state
Moderate or rough, but slight or moderate in far north.
Weather
Rain, drizzle and fog patches, but occasional rain later in south.
Visibility
Moderate occasionally very poor, becoming good occasionally moderate later in south.

West Northern Section

Wind
Cyclonic, mainly northerly or northwesterly 4 to 6.
Sea state
Moderate or rough, but slight or moderate in northwest.
Weather
Rain, drizzle and fog patches in east, mainly fair in west.
Visibility
Moderate occasionally very poor in east, good in west.

East Central Section

Wind
Cyclonic, mainly southerly or southwesterly, 4 to 6, becoming variable 2 to 4 later in far south.
Sea state
Moderate or rough.
Weather
Rain, drizzle and fog patches at first in far north, otherwise occasional rain or showers, thundery in south.
Visibility
Moderate or good occasionally very poor at first in far north, otherwise good occasionally poor.

West Central Section

Wind
Cyclonic, mainly westerly or northwesterly, 4 to 6, occasionally 7 at first in north, becoming variable 2 to 4 later except in northeast.
Sea state
Moderate or rough.
Weather
Rain, drizzle and fog patches at first in northeast, otherwise showers.
Visibility
Moderate or good occasionally very poor at first in northeast, otherwise good occasionally moderate.

Denmark Strait

Wind
Variable 2 to 4, becoming northeasterly 4 to 6.
Sea state
Slight occasionally moderate, becoming moderate later.
Weather
Fog patches, but until later in west, becoming fog banks later in east.
Visibility
Moderate or good occasionally very poor, becoming good later in west and moderate to very poor later in east.

North Iceland

In northeast of area

Wind
Northwesterly 4 to 6, decreasing 3 or 4 later.
Sea state
Moderate or rough becoming moderate.
Weather
Showers, perhaps wintry.
Visibility
Good occasionally moderate.

In rest of area

Wind
Cyclonic 3 to 5.
Sea state
Slight or moderate.
Weather
Occasional rain and drizzle in northwest, rain in south, fog patches, then fog banks developing in south.
Visibility
Moderate or good occasionally very poor, becoming moderate to very poor in south.

Norwegian Basin

Wind
Westerly or southwesterly, backing southerly or southeasterly, 4 to 6.
Sea state
Moderate, occasionally rough in east.
Weather
Showers at first in east, otherwise rain and drizzle, fog patches later in west.
Visibility
Good at first in east, otherwise moderate or good, occasionally poor, but very poor later in west.

Outlook for the following 24 hours

Risk of gales in Denmark Strait 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.

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