Coast and Sea

High seas forecast and storm warnings


The general synopsis for UK

At 081200UTC, low 63 north 20 west 990 expected 62 north 23 west 995 by 091200UTC. New low expected 61 north 06 east 998 by same time

Issued at: .

For the period to .

High seas forecast and storm warnings map


Sole

Wind
Westerly 5 or 6, decreasing 4 or 5.
Sea state
Rough, occasionally very rough at first.
Weather
Showers.
Visibility
Good.

Shannon

Wind
West 6 or 7, decreasing 4 to 6 later.
Sea state
Rough or very rough.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Rockall

Wind
Cyclonic 5 to 7, becoming west 4 or 5 later.
Sea state
Rough or very rough becoming rough.
Weather
Thundery showers.
Visibility
Good, occasionally poor.

Bailey

Wind
Cyclonic 3 to 5.
Sea state
Moderate or rough.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Faeroes

Wind
South or southwest 3 to 5, becoming variable 2 to 4.
Sea state
Moderate occasionally rough.
Weather
Showers, perhaps thundery.
Visibility
Good, occasionally poor.

Southeast Iceland

Wind
Cyclonic 4 to 6, becoming southerly or southeasterly 3 to 5.
Sea state
Moderate.
Weather
Rain or showers, perhaps thundery.
Visibility
Good, occasionally poor.

East Northern Section

Wind
Westerly or northwesterly, but cyclonic in north, 4 to 6, occasionally 7 in south.
Sea state
Moderate or rough, occasionally very rough at first in far south.
Weather
Rain or showers, perhaps thundery in east.
Visibility
Good occasionally moderate, but poor in east.

West Northern Section

Wind
Cyclonic, mainly westerly or northwesterly, 4 to 6, occasionally 7 in northeast.
Sea state
Moderate or rough, occasionally slight at first in far northwest.
Weather
Occasional rain, but rain or drizzle and fog patches later in southwest and fog patches later in far northwest.
Visibility
Good occasionally moderate, becoming moderate or good occasionally very poor later in southwest and far northwest.

East Central Section

Wind
Westerly 4 to 6, becoming variable 2 to 4 in south, then backing southerly 4 or 5 later in northwest.
Sea state
Rough or very rough at first in north, otherwise moderate or rough.
Weather
Showers in north, perhaps thundery at first in northeast, occasional rain in south.
Visibility
Good occasionally moderate.

West Central Section

Wind
Westerly at first in northeast otherwise cyclonic becoming southerly or southeasterly, 4 to 6.
Sea state
Moderate or rough.
Weather
Occasional rain, drizzle and fog patches.
Visibility
Moderate or good occasionally very poor.

Denmark Strait

Wind
Northerly or northeasterly 5 to 7.
Sea state
Moderate or rough.
Weather
Occasional rain, drizzle and fog patches.
Visibility
Moderate or good occasionally very poor.

North Iceland

Wind
Cyclonic 4 to 6.
Sea state
Moderate.
Weather
Occasional rain and drizzle, fog banks becoming extensive fog.
Visibility
Moderate to very poor, occasionally good.

Norwegian Basin

Wind
Variable 2 to 4, becoming cyclonic 5 to 7 later.
Sea state
Moderate, occasionally rough.
Weather
Rain and showers.
Visibility
Moderate or good, occasionally poor.

Outlook for the following 24 hours

Gales are expected in West Northern Section, West Central Section, north Iceland and Norwegian Basin.

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.