Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 180000UTC, low 58 north 10 west 983 expected 61 north 00 west 990 by 190000UTC. New low expected 61 north 39 west 1006 by same time. High 46 north 35 west 1027 expected 47 north 34 west 1027 by that time. Low 64 north 03 west 987 moving slowly west and losing its identity

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
West 5 to 7.
Sea state
Rough.
Weather
Thundery showers.
Visibility
Good, occasionally moderate.

Shannon

Wind
Westerly 5 to 7, occasionally gale 8 at first in north.
Sea state
Rough or very rough, becoming rough.
Weather
Squally showers.
Visibility
Moderate or good.

Rockall

Wind
Westerly or northwesterly 5 to 7, occasionally gale 8 at first in south.
Sea state
Rough or very rough, becoming rough.
Weather
Squally showers.
Visibility
Moderate or good.

Bailey

Wind
Northerly or northwesterly 5 to 7, occasionally gale 8 in west, decreasing 4 at times in east.
Sea state
Moderate or rough in east, rough or very rough in west.
Weather
Thundery showers.
Visibility
Moderate or good.

Faeroes

Wind
Cyclonic 2 to 4, becoming north 4 to 6 later.
Sea state
Moderate or rough.
Weather
Fog patches at first, thundery showers.
Visibility
Moderate or good, occasionally very poor at first.

Southeast Iceland

Wind
Northerly 7 to severe gale 9, but 4 to 6 at first in east.
Sea state
Rough or very rough.
Weather
Rain.
Visibility
Good, occasionally poor.

East Northern Section

Wind
Northerly or northwesterly 5 to 7, becoming cyclonic 3 to 5 later except in far southeast.
Sea state
Moderate or rough, occasionally very rough at first in south.
Weather
Showers, then rain later in far southwest.
Visibility
Good, occasionally moderate.

West Northern Section

In northeast

Wind
Northerly 4 to 6 veering easterly or northeasterly 2 to 4.
Sea state
Rough at first in southeast, otherwise moderate.
Weather
Fair.
Visibility
Good.

In northwest

Wind
Variable 2 to 4 becoming cyclonic 3 to 5, occasionally 6 later.
Sea state
Moderate, becoming slight in far north.
Weather
Rain or showers developing, fog patches in far north.
Visibility
Moderate or good, becoming poor at times, but occasionally very poor in far north.

In southeast

Wind
Northwesterly 4 or 5 becoming variable 2 to 4 then cyclonic 4 to 6.
Sea state
Rough, becoming moderate in north.
Weather
Fair then rain.
Visibility
Good, becoming moderate or poor.

In southwest

Wind
Southerly or southwesterly 3 to 5 veering westerly 4 to 6.
Sea state
Moderate, occasionally rough in south.
Weather
Rain.
Visibility
Moderate or poor, occasionally good in north.

East Central Section

In northeast

Wind
Northwesterly 5 to 7, backing westerly 4 to 6 later.
Sea state
Rough or very rough, becoming rough.
Weather
Showers, thundery at first in far northeast, then rain later in west.
Visibility
Moderate or good.

In southwest

Wind
Westerly or northwesterly 3 to 5, occasionally 6 later in north.
Sea state
Rough, becoming moderate later in south.
Weather
Rain later in north.
Visibility
Good, occasionally moderate later in north.

West Central Section

In south

Wind
Variable 3 or less, occasionally 4 in north.
Sea state
Rough at first in east, otherwise moderate.
Weather
Mainly fair.
Visibility
Good, occasionally moderate.

In north

Wind
Westerly, backing southwesterly in west, 4 to 6.
Sea state
Moderate or rough.
Weather
Fair at first in south, otherwise occasional rain, drizzle or showers.
Visibility
Moderate or good, occasionally poor in far north.

Denmark Strait

Wind
Variable 2 to 4 within 100 miles of greenland, otherwise northeasterly 4 to 6.
Sea state
Slight or moderate.
Weather
Fog banks within 100 miles of greenland.
Visibility
Moderate or good, occasionally very poor within 100 miles of greenland.

North Iceland

In northwest

Wind
Variable 2 to 4.
Sea state
Slight or moderate.
Weather
Fog banks.
Visibility
Moderate or good, occasionally very poor.

In southeast

Wind
Northeasterly backing northerly 5 to 7, occasionally gale 8 later.
Sea state
Moderate or rough, occasionally very rough later.
Weather
Rain or showers.
Visibility
Moderate or good, occasionally poor.

Norwegian Basin

In area to the west of 00 east

Wind
Southerly or southeasterly 3 to 5 becoming variable 2 to 4.
Sea state
Moderate or rough.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

In area between 00 east and 06 east

Wind
Southerly or southeasterly 5 to 7, occasionally gale 8 in south, decreasing 4 at times in north.
Sea state
Moderate or rough.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

In area to the east of 06 east

Wind
Variable 2 to 4 becoming mainly easterly 3 to 5.
Sea state
Moderate.
Weather
Showers.
Visibility
Good, occasionally moderate.

Outlook for following 24 hours

Gales expected in sea area Southeast Iceland and the southeast of sea area north Iceland.

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

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.

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.