Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 011200UTC, low 51 north 44 west 973 expected 61 north 45 west 976 by 021200UTC. High 54 north 14 west 1041 expected 56 north 08 west 1044 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
East or northeast 4 to 6.
Sea state
Moderate or rough.
Weather
Showers.
Visibility
Good, occasionally moderate.

Shannon

Wind
Northeast veering east or southeast, 4 or 5.
Sea state
Moderate.
Weather
Mainly fair.
Visibility
Good.

Rockall

Wind
Variable 2 to 4, becoming southeasterly 4 or 5 in southwest.
Sea state
Rough at first in far northwest, otherwise moderate.
Weather
Showers.
Visibility
Good.

Bailey

Wind
West backing south or southwest, 3 to 5.
Sea state
Rough at first in west, otherwise moderate.
Weather
Mainly fair.
Visibility
Good.

Faeroes

Wind
West or southwest 3 to 5.
Sea state
Moderate.
Weather
Occasional rain or drizzle.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
Southwesterly 4 to 6.
Sea state
Moderate or rough.
Weather
Showers, then occasional drizzle.
Visibility
Good, occasionally poor.

East Northern Section

Wind
Southerly or southwesterly 4 to 6 backing southerly or southeasterly 5 to 7, occasionally gale 8 in west.
Sea state
Moderate or rough becoming rough or very rough, occasionally high in west.
Weather
Rain at first in north, and also later in west, otherwise mainly fair.
Visibility
Moderate or good, occasionally poor at first in north and later in west.

West Northern Section

In area to the south of 60 north

Wind
Southerly or southeasterly 7 to severe gale 9 veering southerly or southwesterly 6 to gale 8, then decreasing 4 to 6 later.
Sea state
Rough at first in east and north, otherwise very rough or high.
Weather
Rain, then squally showers in west, becoming wintry later.
Visibility
Good at first in east, otherwise moderate or poor.

In far northwest

Wind
Northeasterly 5 to 7, occasionally gale 8 at first, veering southerly or southeasterly 4 to 6 later.
Sea state
Moderate becoming rough, then becoming very rough or high later.
Weather
Sleet then rain.
Visibility
Moderate or poor, occasionally very poor at first.

In the rest of the area

Wind
Southerly 5 or 6 backing southeasterly 6 to gale 8, veering southerly again later, then decreasing 4 or 5 later in east.
Sea state
Moderate at first in north, otherwise rough or very rough becoming very rough or high.
Weather
Rain, then squally showers in southwest.
Visibility
Moderate or poor, occasionally good.

East Central Section

Wind
Easterly or southeasterly 4 to 6, increasing 7 in far northwest.
Sea state
Moderate or rough, becoming very rough in far northwest.
Weather
Showers at first in south, then rain later in far west, otherwise mainly fair.
Visibility
Moderate or good, becoming poor later in far west.

West Central Section

In eastern half of the area

Wind
Southeasterly 6 to gale 8, occasionally severe gale 9 at first in northwest, then becoming cyclonic 4 to 6 except in far northeast.
Sea state
Very rough or high at first in northwest, otherwise rough or very rough.
Weather
Rain for a time, perhaps thundery.
Visibility
Moderate or poor, occasionally good.

In western half of the area

Wind
Southerly 7 to severe gale 9 at first except in southwest, otherwise westerly or southwesterly 4 to 6.
Sea state
High becoming very rough.
Weather
Rain at first in east, otherwise showers, squally and wintry at times in north.
Visibility
Moderate or poor.

Denmark Strait

In area to the south of 70 north

Wind
Cyclonic 3 to 5 increasing 5 to 7, then becoming northeasterly 7 to severe gale 9 for a time to the west of 34 west.
Sea state
Moderate, becoming rough or very rough except in far southeast.
Weather
Rain, sleet and freezing rain spreading northwards, with snow at times near greenland, fog patches at first in north.
Visibility
Moderate or good, occasionally very poor in north and near greenland, and poor elsewhere. Light icing for a time in east near greenland, with temperatures ms02 or ms03.

In area to the north of 70 north

Wind
Northwesterly 3 to 5 becoming variable 3 or less, then southerly 3 or 4 later.
Sea state
Slight.
Weather
Mainly fair.
Visibility
Good, occasionally moderate in south.

North Iceland

In area to the north of 70 north

Wind
Cyclonic becoming westerly or northwesterly, then backing southwesterly later, 3 to 5, occasionally 6 in east and south.
Sea state
Rough until later in southeast, otherwise slight or moderate.
Weather
Showers at first in southeast, otherwise fair.
Visibility
Good, occasionally moderate at first in southeast. Light or moderate icing at times in far north, with temperatures ms02 to ms05.

In area to the south of 70 north

Wind
Southwesterly 4 to 6, becoming cyclonic 3 to 5 in north.
Sea state
Slight or moderate in west, moderate or rough in east.
Weather
Rain or drizzle at times, fog patches.
Visibility
Moderate or good, occasionally very poor.

Norwegian Basin

Wind
Cyclonic at first in south, otherwise westerly or northwesterly backing westerly or southwesterly, 3 to 5, increasing 6 later in northeast.
Sea state
Moderate, occasionally rough later in northeast.
Weather
Showers at first, then drizzle at times later.
Visibility
Moderate or good, occasionally poor later in west.

Outlook for the following 24 hours

Gales expected in Southeast Iceland, East Northern Section, West Northern Section, Denmark Strait and north Iceland. Risk of gales at first in far northwest of 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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