Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 300000UTC, low 53 north 16 west 999 expected 54 north 04 west 1001 by 310000UTC. Low 67 north 09 east 997 expected 77 north 04 east 995 by same time. Low 73 north 11 west 1001 expected 74 north 09 west 995 by that time. at 300000UTC, low 65 north 32 west 1007 expected 61 north 29 west 1000 by 310000UTC. Low 46 north 51 west 1010 expected 46 north 36 west 1005 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Westerly 5 to 7, veering northwesterly 4 to 6 later.
Sea state
Rough or very rough, occasionally moderate at first.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Shannon

Wind
Cyclonic 4 to 6, occasionally 7 in south, becoming northwesterly 5 to 7, backing westerly 4 or 5 later.
Sea state
Moderate or rough, occasionally very rough at first in far south.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Rockall

Wind
Cyclonic becoming northwest later, 4 to 6, occasionally 7 later.
Sea state
Moderate occasionally rough.
Weather
Occasional rain.
Visibility
Good, occasionally moderate.

Bailey

Wind
Cyclonic becoming northwest later, 4 to 6, occasionally 7 later.
Sea state
Moderate occasionally rough.
Weather
Occasional rain.
Visibility
Good, occasionally moderate.

Faeroes

Wind
Northeast veering east or southeast, then becoming cyclonic later, 3 to 5, occasionally 6 later.
Sea state
Slight or moderate.
Weather
Occasional rain.
Visibility
Moderate or good, occasionally poor.

Southeast Iceland

Wind
Variable 2 to 4.
Sea state
Slight occasionally moderate in southeast.
Weather
Showers.
Visibility
Mainly good.

East Northern Section

Wind
Northerly 4 to 6 until later in southeast, otherwise cyclonic 3 to 5, occasionally 6 in north.
Sea state
Slight or moderate.
Weather
Occasional rain or showers, perhaps thundery in north.
Visibility
Moderate or good, occasionally poor.

West Northern Section

Wind
Cyclonic 3 to 5, occasionally 6 at first in north and later in south.
Sea state
Moderate occasionally slight in north.
Weather
Occasional rain or showers, perhaps thundery at first in north.
Visibility
Moderate or good, occasionally poor.

East Central Section

Wind
Northerly or northwesterly, backing southerly or southwesterly later, 4 to 6, occasionally 7 at first in east.
Sea state
Moderate or rough, occasionally very rough at first in southeast.
Weather
Occasional rain or showers at first in east, perhaps thundery, also occasional rain later.
Visibility
Moderate or good, occasionally poor.

West Central Section

Wind
Westerly or southwesterly 3 to 5, becoming cyclonic 4 to 6 in south, occasionally 7 in far south.
Sea state
Moderate occasionally rough in south.
Weather
Occasional rain.
Visibility
Moderate or good, occasionally poor.

Denmark Strait

In area north of 70 north

Wind
Variable 2 to 4, becoming cyclonic 3 to 5, then northeasterly 4 to 6 later.
Sea state
Slight or moderate, occasionally rough later in north.
Weather
Occasional rain.
Visibility
Moderate or good, occasionally poor.

In area south of 67 north

Wind
Cyclonic 4 to 6 until later in far south, otherwise variable 2 to 4.
Sea state
Slight, occasionally moderate in south.
Weather
Rain or showers in south.
Visibility
Good, occasionally moderate in south.

In rest of area

Wind
Variable 2 to 4.
Sea state
Slight.
Weather
Fog patches later.
Visibility
Good occasionally very poor later.

North Iceland

In north

Wind
Cyclonic, mainly northwesterly, 4 to 6, increasing 7 or gale 8 in northwest.
Sea state
Moderate or rough, occasionally very rough later in northwest.
Weather
Occasional rain, fog patches in north.
Visibility
Moderate or good, occasionally poor and in north very poor.

In south

Wind
Northwesterly 4 or 5 until later in northeast, otherwise variable 2 to 4.
Sea state
Slight or moderate.
Weather
Occasional rain, mainly in south.
Visibility
Moderate or good.

Norwegian Basin

Wind
Northerly becoming variable later, 2 to 4, occasionally 5 at first in south.
Sea state
Slight or moderate.
Weather
Mainly fair.
Visibility
Mainly good.

Outlook for the following 24 hours

Gales expected in north Iceland with risk of gales in 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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