Coast and sea

High seas forecast and storm warnings

The general synopsis for UK

At 140000UTC, low 62 north 04 west 1008 expected 59 north 10 east 1008 by 150000UTC. Low 61 north 30 west 1005 expected 61 north 15 west 1005 by same time. Low 56 north 47 west 1006 expected 59 north 36 west 1007 by that time. at 140000UTC, high 46 north 25 west 1034 expected 46 north 20 west 1033 by 150000UTC. High 76 north 06 west 1023, slow moving, declining 1021 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map

Sole

Wind
Northwest 4 or 5, increasing 6 at times.
Sea state
Slight or moderate.
Weather
Occasional rain or drizzle later.
Visibility
Good, occasionally poor later.

Shannon

Wind
West or northwest 5 or 6.
Sea state
Moderate, occasionally rough.
Weather
Occasional rain or drizzle.
Visibility
Moderate or good, occasionally poor.

Rockall

Wind
West or northwest 5 or 6.
Sea state
Moderate, occasionally rough.
Weather
Occasional rain or drizzle.
Visibility
Moderate or good, occasionally poor.

Bailey

Wind
West or northwest 5 or 6, backing south 3 or 4 for a time.
Sea state
Moderate or rough.
Weather
Occasional rain or showers.
Visibility
Moderate or good, occasionally poor.

Faeroes

Wind
Cyclonic 4 or 5, becoming variable 3 at times.
Sea state
Slight or moderate.
Weather
Occasional rain or showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

Southeast Iceland

Wind
Cyclonic 4 or 5, becoming variable 3 at times.
Sea state
Slight or moderate.
Weather
Occasional rain or showers, fog patches.
Visibility
Moderate or good, occasionally very poor.

East Northern Section

In northern half of area

Wind
Cyclonic 4 or 5, occasionally 6 at first.
Sea state
Moderate or rough.
Weather
Rain or drizzle.
Visibility
Moderate or good, occasionally poor.

In southern half of area

Wind
Westerly 5 to 7.
Sea state
Mainly rough.
Weather
Rain or drizzle.
Visibility
Moderate or good, occasionally poor.

West Northern Section

Wind
Cyclonic, mainly northerly 4 or 5 in north and later west, otherwise southwesterly 5 or 6.
Sea state
Moderate or rough.
Weather
Showers in north, otherwise rain or drizzle.
Visibility
Moderate or poor, occasionally good in north.

East Central Section

In northern half of area

Wind
Westerly or southwesterly 4 or 5, occasionally 6 in north.
Sea state
Moderate or rough.
Weather
Drizzle, fog banks.
Visibility
Moderate or very poor.

In southern half of area

Wind
Northerly 4 or 5 in east, otherwise variable 3 or 4.
Sea state
Slight or moderate.
Weather
Occasional drizzle, fog banks.
Visibility
Poor or very poor.

West Central Section

Wind
Southerly or southwesterly 4 or 5, occasionally 6 in north.
Sea state
Moderate, occasionally rough in far north.
Weather
Occasional rain or drizzle, extensive fog.
Visibility
Very poor, occasionally poor.

Denmark Strait

Wind
Northerly or northeasterly 4 or 5, occasionally 6 in north and in east, becoming variable 3 or 4 near greenland coast.
Sea state
Moderate, occasionally slight.
Weather
Rain or drizzle, fog banks.
Visibility
Poor or very poor, occasionally moderate.

North Iceland

Wind
Cyclonic until later in far west, otherwise easterly 4 or 5.
Sea state
Slight or moderate.
Weather
Rain or drizzle, fog banks.
Visibility
Poor or very poor, occasionally moderate in east.

Norwegian Basin

Wind
Easterly 4 or 5 at first in north, otherwise variable 3 or 4.
Sea state
Slight or moderate.
Weather
Occasional rain or showers.
Visibility
Moderate or good, occasionally poor.

Outlook for following 24 hours

Gales expected in Denmark Strait.

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.