Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 060000UTC, low 45 north 35 west 993 expected 43 north 34 west with little change by 070000UTC. Low 73 north 20 west 992 expected 77 north 09 east 997 by same time. High 63 north 11 east 1035 expected 56 north 16 east 1031 by that time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Easterly or southeasterly 2 to 4.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.

Shannon

Wind
East or southeast 3 to 5, decreasing 2 or 3 later.
Sea state
Moderate, becoming mainly slight later.
Weather
Showers.
Visibility
Good.

Rockall

Wind
East or southeast 3 to 5, decreasing 2 or 3 later.
Sea state
Moderate, becoming mainly slight later.
Weather
Showers.
Visibility
Good.

Bailey

Wind
In southeast, southeasterly becoming variable, 2 or 3, occasionally 4 at first. in northwest, southwesterly 3 to 5.
Sea state
In southeast, slight or moderate, becoming slight. in northwest, moderate.
Weather
In southeast, showers. in northwest, showers.
Visibility
In southeast, good. in northwest, good.

Faeroes

Wind
Southerly or southeasterly, becoming variable, 2 to 4, then becoming southwesterly 3 to 5 later in northwest.
Sea state
Slight or moderate.
Weather
Showers.
Visibility
Good.

Southeast Iceland

Wind
Southwesterly 4 or 5, increasing 6 at times in northwest.
Sea state
Moderate, occasionally rough at first in far north.
Weather
Rain or showers.
Visibility
Good, occasionally moderate.

East Northern Section

In northwestern half of area

Wind
Southwesterly 4 to 6, becoming variable 2 to 4 at times in central areas.
Sea state
Moderate, occasionally rough.
Weather
Rain at times.
Visibility
Moderate or good, occasionally poor.

In southeastern half of area

Wind
Southerly or southeasterly 2 to 4.
Sea state
Moderate, occasionally slight later.
Weather
Showers.
Visibility
Good.

West Northern Section

In southeastern half of area

Wind
Cyclonic 3 to 5, becoming southerly or southwesterly 4 to 6 later.
Sea state
Moderate, occasionally rough later in west.
Weather
Occasional rain or showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

In northwestern half of area

Wind
Variable 2 to 4 in far northwest, otherwise southwesterly 4 to 6, occasionally 7 in west.
Sea state
Rough, occasionally moderate.
Weather
Showers, rain later, but snow later in far northwest.
Visibility
Moderate or good, occasionally poor later, but very poor later in far northwest.

East Central Section

In north

Wind
Easterly or southeasterly 3 to 5, increasing 6 at times in far southwest.
Sea state
Moderate, occasionally rough in southwest and slight later in northeast.
Weather
Showers.
Visibility
Good.

In south

Wind
Easterly or southeasterly 4 to 6, but 7 or gale 8 at first in south and west, becoming variable 2 to 4 in southwest.
Sea state
Moderate or rough, occasionally very rough at first in west.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

West Central Section

In north

Wind
Easterly or northeasterly 3 to 5, increasing 6 at times in far south, then becoming variable 2 to 4 later in northwest.
Sea state
Moderate or rough.
Weather
Occasional rain or showers with fog patches.
Visibility
Moderate or good, occasionally very poor.

In south

Wind
Cyclonic 6 to gale 8, becoming easterly or northeasterly 4 to 6 later.
Sea state
Rough or very rough, occasionally high at first in far southwest.
Weather
Occasional rain, but thundery showers in southeast.
Visibility
Moderate or good, occasionally poor.

Denmark Strait

In area north of 70 north

Wind
Westerly or northwesterly 3 to 5, becoming variable 2 to 4.
Sea state
Slight or moderate.
Weather
Mainly fair.
Visibility
Good.

In area south of 70 north

Wind
Southwesterly 4 to 6, occasionally 7 at first in east, then becoming cyclonic 3 to 5 later within 100 miles of greenland coast.
Sea state
Moderate or rough, occasionally very rough at first in northeast.
Weather
Showers, then rain, sleet and snow later except in southeast.
Visibility
Moderate or good, becoming moderate to very poor later except in southeast.

North Iceland

In north

Wind
Southwesterly veering westerly or northwesterly 7 to severe gale 9, decreasing 4 to 6, then becoming variable 2 to 4 in west.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Snow showers with occasional snow in far north.
Visibility
Moderate or good, occasionally very poor. Occasional light or moderate icing in north with temperatures ms02 to ms05.

In south

Wind
Southwesterly 4 to 6, occasionally 7 at first in far north.
Sea state
Moderate or rough, occasionally very rough in far north.
Weather
Occasional rain or showers, fog patches later in southeast.
Visibility
Moderate or good, occasionally poor, but very poor later in southeast.

Norwegian Basin

Wind
Variable 2 to 4, becoming westerly or southwesterly 3 to 5, occasionally 6 later in north.
Sea state
Moderate, occasionally slight in south and rough in northeast.
Weather
Showers.
Visibility
Good.

Outlook for the following 24 hours

Risk of severe gales in East Central Section. Risk of gales in West Northern Section, West Central Section and Denmark Strait.

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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