Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 251200UTC, low 63 north 35 west 992 expected 61 north 39 west 1001 by 261200UTC. Low 55 north 22 west 992 expected 54 north 17 west 1000 by same time. New low expected 69 north 16 west 1014 by that time. at 251200UTC, low 48 north 29 west 1001 expected 51 north 45 west 1000 by 261200UTC. High 69 north 13 east 1030 dissipating by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Cyclonic becoming west, 4 to 6.
Sea state
Moderate or rough.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Shannon

Wind
Cyclonic becoming west or southwest, 4 to 6.
Sea state
Moderate or rough, becoming rough or very rough.
Weather
Rain or showers, perhaps thundery.
Visibility
Good, occasionally poor.

Rockall

Wind
Southeasterly becoming cyclonic, 4 to 6, occasionally 7 at first and 3 later in north.
Sea state
Rough or very rough, occasionally moderate in east.
Weather
Rain or showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Easterly or southeasterly 3 to 5.
Sea state
Moderate or rough.
Weather
Showers, fog patches.
Visibility
Good, occasionally very poor.

Faeroes

Wind
Easterly or southeasterly 3 to 5.
Sea state
Moderate or rough.
Weather
Showers, fog patches.
Visibility
Good, occasionally very poor.

Southeast Iceland

Wind
Easterly or southeasterly 3 to 5.
Sea state
Moderate or rough.
Weather
Showers, fog patches.
Visibility
Good, occasionally very poor.

East Northern Section

In northeastern half of the area

Wind
Southeasterly 4 to 6, occasionally 7 at first, backing easterly 3 or 4 later.
Sea state
Rough or very rough, becoming moderate or rough.
Weather
Rain or drizzle at times.
Visibility
Moderate or good.

In southwestern half of the area

Wind
Cyclonic 5 to 7, occasionally gale 8 in far south and 4 elsewhere.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Rain or drizzle.
Visibility
Moderate or poor, occasionally good.

West Northern Section

In north

Wind
Cyclonic, mainly southerly or southwesterly, 5 to 7, occasionally gale 8 in far northwest, decreasing 3 to 5 in far east and later elsewhere.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Occasional rain or drizzle, mainly in north, with sleet or snow at times in far northwest, then showers later.
Visibility
Moderate or good, occasionally very poor in far northwest.

In south

Wind
Westerly or southwesterly 4 to 6, occasionally 7 at first in northwest, becoming variable 2 to 4 in far south.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Mainly fair, showers later.
Visibility
Mainly good.

East Central Section

In north

Wind
Cyclonic, mainly westerly or northwesterly, 6 to gale 8, decreasing 3 to 5 later in west.
Sea state
Rough or very rough, becoming moderate or rough later in west.
Weather
Occasional rain, but mainly fair at first in west.
Visibility
Moderate or good, occasionally poor.

In south

Wind
Westerly or northwesterly backing southwesterly later, 4 to 6.
Sea state
Rough or very rough, becoming moderate or rough later.
Weather
Mainly fair, then occasional rain in west and later elsewhere.
Visibility
Good, occasionally poor at first in west and later elsewhere.

West Central Section

Wind
Westerly or northwesterly at first in far east, otherwise cyclonic, 4 to 6, increasing 7 at times, mainly in south.
Sea state
Moderate or rough, occasionally very rough at first in far northeast.
Weather
Rain or thundery showers, with fog patches later in north.
Visibility
Moderate or good, becoming poor at times, but occasionally very poor later in north.

Denmark Strait

High seas storm warning
Issued:

Northeasterly winds will continue to reach storm force 10 at times within 50 miles of the Greenland coast in the west of Denmark Strait between 65 and 67 north until 260300UTC.

Wind
Easterly or northeasterly, but cyclonic in far south, mainly 5 to 7, but gale 8 to storm 10 at first within 50 miles of the greenland, mainly in south, then decreasing 4 at times later.
Sea state
Rough or very rough until later in south, otherwise moderate or rough, becoming slight or moderate later.
Weather
Rain or drizzle, with sleet or snow near greenland and fog patches in east.
Visibility
Moderate or good, occasionally very poor.

North Iceland

In area north of 72 north

Wind
Variable 2 to 4, becoming easterly or northeasterly 3 to 5.
Sea state
Slight or moderate.
Weather
Occasional rain or drizzle with fog patches, becoming mainly fair in far north.
Visibility
Moderate to very poor, becoming good in far north.

In rest of area

Wind
Cyclonic, mainly southeasterly at first, 4 to 6, becoming variable 2 to 4 later.
Sea state
Moderate, occasionally rough at first in far south and slight in west.
Weather
Drizzle at times, fog banks.
Visibility
Moderate to very poor.

Norwegian Basin

Wind
Northeasterly 4 or 5 at first in east, otherwise variable 2 to 4.
Sea state
Moderate, becoming slight later in near norway.
Weather
Rain at times, fog patches.
Visibility
Moderate or good, occasionally very poor.

Outlook for following 24 hours

Gales expected in East Central Section. Risk of gales expected in Shannon and West Central Section.

Unscheduled storm warnings are broadcast via Safetynet and in bulletin WONT54 EGRR available via some internet and ftpmail outlets

The 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.