Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 211200UTC, low 44 north 22 west 1006 expected 41 north 18 west by 221200UTC. Low 63 north 40 west 1005 losing its identity by same time. New low expected 62 north 38 west 995 by that time. at 211200UTC, high 53 north 27 west 1030 expected 52 north 20 west with little change by 221200UTC

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
North veering northeast 3 to 5.
Sea state
Moderate.
Weather
Showers, perhaps thundery at first.
Visibility
Good, occasionally poor at first.

Shannon

Wind
North veering northeast, 3 to 5.
Sea state
Moderate, occasionally slight in east.
Weather
Showers.
Visibility
Good.

Rockall

Wind
North backing west or northwest 3 to 5.
Sea state
Moderate, occasionally slight.
Weather
Showers.
Visibility
Good.

Bailey

Wind
West backing southwest later, 4 or 5.
Sea state
Moderate, becoming rough later in northwest.
Weather
Rain or showers.
Visibility
Good, occasionally moderate.

Faeroes

Wind
Northwest, backing west or southwest, 3 to 5.
Sea state
Slight or moderate.
Weather
Showers, occasional rain later.
Visibility
Good, occasionally moderate.

Southeast Iceland

Wind
Southwesterly 4 to 6.
Sea state
Moderate, occasionally rough later in north and west.
Weather
Rain or showers.
Visibility
Good, occasionally moderate.

East Northern Section

Wind
Northwesterly 3 or 4 at first in far southeast, otherwise westerly 4 to 6, backing southwesterly 5 to 7, increasing gale 8 at times later in west.
Sea state
Moderate becoming rough except in far southeast.
Weather
Rain at times in northwest, showers in southeast.
Visibility
Moderate or good, occasionally poor in northwest.

West Northern Section

In southeastern half of area

Wind
Southerly or southwesterly 5 to 7, increasing gale 8 for a time later in east, then decreasing 4 at times later in west.
Sea state
Moderate or rough.
Weather
Mainly fair at first in southeast, otherwise occasional rain or drizzle, fog patches in south.
Visibility
Moderate or good, occasionally poor, or very poor in south.

In northwestern half of area

Wind
Southwesterly becoming cyclonic, 5 to 7, occasionally gale 8 later in west.
Sea state
Moderate or rough.
Weather
Rain or drizzle at times with fog patches, becoming mainly fair in far northwest.
Visibility
Moderate or good, occasionally very poor, becoming mainly good in far northwest.

East Central Section

In northwestern half of area

Wind
Variable 2 to 4, becoming southwesterly 3 to 5 in northwest, increasing 6 or 7 later in northwest.
Sea state
Moderate occasionally rough later in far northwest.
Weather
Showers in east, rain later in northwest.
Visibility
Good, occasionally moderate.

In southeastern half of area

Wind
Easterly or northeasterly 5 to 7, but gale 8 or severe gale 9 until later in far southeast, decreasing 3 to 5 later in far west.
Sea state
Moderate or rough, occasionally very rough in far southeast.
Weather
Rain or showers in far southeast.
Visibility
Good, but moderate to poor until later in far southeast.

West Central Section

In southern half of area

Wind
Easterly or southeasterly, veering southerly or southwesterly later, 4 or 5, increasing 6 at times in north.
Sea state
Moderate, occasionally rough in far southeast.
Weather
Occasional rain at times, but mainly fair in far east.
Visibility
Moderate or good, occasionally poor later in west.

In northern half of area

Wind
Southerly 5 or 6, increasing 7 at times, veering westerly or southwesterly 3 to 5 later in west.
Sea state
Moderate or rough.
Weather
Rain at times, fog patches.
Visibility
Moderate or good, occasionally very poor.

Denmark Strait

In an area south of 71 north

Wind
Cyclonic 3 to 5, increasing 6 at times near coasts, becoming northeasterly 6 to gale 8 later except in far southeast.
Sea state
Slight or moderate, becoming moderate or rough.
Weather
Rain at times, fog patches.
Visibility
Moderate or good, occasionally very poor.

In an area north of 71 north

Wind
Variable 2 to 4, becoming northeasterly 4 or 5 later.
Sea state
Smooth or slight, becoming moderate later.
Weather
Rain at times in south.
Visibility
Good, occasionally moderate in south.

North Iceland

In north

Wind
Variable 2 to 4, becoming cyclonic, then easterly or northeasterly later, 3 to 5, occasionally 6 later in west.
Sea state
Slight, becoming moderate later in south and west.
Weather
Rain at times in south.
Visibility
Good, occasionally moderate in south.

In south

Wind
Variable 2 to 4, becoming southerly or southwesterly, but cyclonic in northwest, 3 to 5, increasing 6 at times later.
Sea state
Slight or moderate, occasionally rough later in far south.
Weather
Occasional rain or drizzle, fog patches, becoming mainly fair later in far southeast.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Northerly or northwesterly 4 to 6, backing southwesterly 3 to 5 later in far west.
Sea state
Moderate or rough, becoming slight or moderate later.
Weather
Occasional rain or showers.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours

Storms expected in Denmark Strait. Severe gales expected in West Northern Section. Risk of gales in East Northern Section and East Central Section.

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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