High seas forecast and storm warnings
The general synopsis for UK
At 041200UTC, low 54 north 07 west 1002 expected 58 north 01 west 1001 by 051200UTC. High 53 north 34 west 1029 expected 51 north 27 west 1028 by same time. Low 61 north 40 west 1013 losing its identity. New low expected 66 north 38 west 1005 by that time
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Southwest veering west, 4 to 6.
- Sea state
- Moderate, occasionally rough at first.
- Weather
- Showers.
- Visibility
- Good, occasionally poor.
Shannon
- Wind
- Northwest 4 to 6.
- Sea state
- Moderate or rough.
- Weather
- Showers.
- Visibility
- Good, occasionally poor.
Rockall
- Wind
- Cyclonic becoming northwest 6 to gale 8, decreasing 4 to 6 later.
- Sea state
- Rough or very rough, becoming moderate or rough later.
- Weather
- Rain or showers.
- Visibility
- Good, occasionally poor.
Bailey
- Wind
- Cyclonic 6 to gale 8, decreasing 4 to 6.
- Sea state
- Moderate or rough, but rough or very rough at first in far south, becoming moderate later.
- Weather
- Rain.
- Visibility
- Moderate or good, occasionally poor.
Faeroes
- Wind
- Northeast 4 to 6.
- Sea state
- Moderate or rough in far south, otherwise slight or moderate.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally poor.
Southeast Iceland
- Wind
- Variable 2 to 4, becoming southwesterly 3 to 5 later in north.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
East Northern Section
In eastern half of area
- Wind
- Westerly or northwesterly, backing southwesterly later, 3 to 5, but 6 at first in far southeast.
- Sea state
- Slight or moderate at first in north, otherwise moderate, occasionally rough in south.
- Weather
- Showers.
- Visibility
- Good occasionally moderate.
In western half of area
- Wind
- Variable 3 or 4, becoming southerly or southwesterly 3 to 5, increasing 5 or 6 later in south.
- Sea state
- Slight or moderate, becoming moderate later, but moderate or rough later in south.
- Weather
- Rain or showers.
- Visibility
- Good occasionally moderate.
West Northern Section
In northern half of area
- Wind
- Variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Occasional rain or showers, fog patches in far west.
- Visibility
- Moderate or good, occasionally very poor in far west.
In southern half of area
- Wind
- Westerly or southwesterly 5 to 7.
- Sea state
- Moderate or rough.
- Weather
- Rain and drizzle, fog patches in west.
- Visibility
- Moderate or good occasionally poor and very poor in west.
East Central Section
In northern half of area
- Wind
- Northwesterly 3 to 5, backing westerly or southwesterly 4 to 6.
- Sea state
- Moderate occasionally rough.
- Weather
- Showers.
- Visibility
- Good occasionally moderate.
In southern half of area
- Wind
- Easterly or northeasterly 3 to 5, increasing 5 or 6 later in far south.
- Sea state
- Moderate.
- Weather
- Showers.
- Visibility
- Good occasionally moderate.
West Central Section
In northern half of area
- Wind
- Variable 2 to 4, becoming southwesterly 4 to 6 later.
- Sea state
- Slight or moderate, becoming moderate or rough later in north.
- Weather
- Showers, then rain and drizzle later.
- Visibility
- Good occasionally moderate, becoming moderate occasionally poor later.
In southern half of area
- Wind
- Easterly or northeasterly, veering southerly later in west, 3 to 5.
- Sea state
- Moderate, occasionally slight in north.
- Weather
- Showers.
- Visibility
- Good occasionally moderate.
Denmark Strait
In northern half of area
- Wind
- Southwesterly veering northeasterly later, 4 to 6.
- Sea state
- Slight or moderate.
- Weather
- Drizzle, fog patches.
- Visibility
- Moderate or good occasionally very poor.
In southern half of area
- Wind
- Variable 2 to 4, becoming cyclonic, mainly northeasterly, 3 to 5 later.
- Sea state
- Slight or moderate, but smooth or slight near iceland.
- Weather
- Drizzle, fog patches.
- Visibility
- Moderate or good occasionally very poor.
North Iceland
In northwestern half of area
- Wind
- Southwesterly 4 to 6, veering northerly or northeasterly 6 to gale 8 later in northwest.
- Sea state
- Slight or moderate becoming moderate or rough later.
- Weather
- Showers, fog patches at first.
- Visibility
- Moderate or good, occasionally poor and very poor at first.
In southeastern half of area
- Wind
- Variable 2 to 4, but southwesterly 4 or 5 at first in northwest.
- Sea state
- Slight, becoming slight or moderate in north.
- Weather
- Showers.
- Visibility
- Good occasionally moderate.
Norwegian Basin
- Wind
- Northeasterly 4 to 6.
- Sea state
- Slight or moderate.
- Weather
- Showers in south and west, otherwise mainly fair.
- Visibility
- Good, occasionally moderate in south and west.
Outlook for the 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 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.