High seas forecast and storm warnings
The general synopsis for UK
At 311200UTC, low 47 north 30 west 1003 expected 45 north 31 west 1008 by 011200UTC. Low 65 north 05 west 997 expected 66 north 02 east 998 by same time. High 57 north 33 west 1027 expected 57 north 30 west 1026 by that time
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Variable 2 to 4, becoming southeasterly 4 to 6 in west, occasionally 7 later in west.
- Sea state
- Slight in east, moderate in west, occasionally rough later in far west.
- Weather
- Occasional rain in west.
- Visibility
- Good, occasionally poor in west.
Shannon
- Wind
- Variable 2 to 4, becoming easterly or southeasterly 3 to 5 in southwest and later elsewhere, increasing 6 or 7 later in southwest.
- Sea state
- Moderate, occasionally slight in east and rough later in far southwest.
- Weather
- Showers, rain later.
- Visibility
- Good, occasionally poor later.
Rockall
- Wind
- Westerly or northwesterly 3 to 5, occasionally 6 until later, becoming variable 2 to 4 later in south.
- Sea state
- Moderate, occasionally rough in north.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
Bailey
- Wind
- In south, westerly or northwesterly 3 to 5, occasionally 6 until later. in north, cyclonic 3 to 5.
- Sea state
- In south, moderate, occasionally rough. in north, moderate, occasionally rough in southwest.
- Weather
- In south, showers. in north, fair.
- Visibility
- In south, good, occasionally moderate. in north, good.
Faeroes
- Wind
- Westerly or northwesterly, 4 to 6.
- Sea state
- Moderate or rough.
- Weather
- Rain or showers.
- Visibility
- Good, occasionally poor.
Southeast Iceland
- Wind
- Cyclonic 3 to 5 in southwest, otherwise northerly or northwesterly 5 to 7.
- Sea state
- Moderate or rough, occasionally slight in west.
- Weather
- Occasional rain.
- Visibility
- Moderate or good.
East Northern Section
- Wind
- Cyclonic 3 to 5 in far northeast and northeasterly 3 or 4 in far southwest, otherwise northerly or northwesterly 4 or 5, occasionally 6 until later.
- Sea state
- Moderate, occasionally slight in west and far north and rough in east.
- Weather
- Showers until later in west.
- Visibility
- Good.
West Northern Section
In north
- Wind
- Westerly or southwesterly 3 to 5 at first in south, otherwise variable 2 to 4.
- Sea state
- Slight, occasionally moderate in south.
- Weather
- Showers, fog patches in far northwest.
- Visibility
- Good, occasionally poor in far north but very poor in far northwest.
In south
- Wind
- Cyclonic, mainly southwesterly, 3 to 5 in northwest, variable 2 to 4 elsewhere.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good occasionally moderate.
East Central Section
In north
- Wind
- Variable 2 to 4 at first in northeast, otherwise easterly or northeasterly 4 to 6, occasionally 7 in south, perhaps gale 8 later in southeast.
- Sea state
- Moderate, occasionally rough in south.
- Weather
- Fair, then occasional rain in south.
- Visibility
- Good, occasionally poor in south.
In south
- Wind
- Cyclonic, 3 to 5 in southwest, otherwise 5 to 7, becoming northeasterly in northwest, decreasing 3 to 5 later in east.
- Sea state
- Moderate or rough.
- Weather
- Occasional rain or showers, thundery at times, fog patches.
- Visibility
- Moderate or good, occasionally very poor.
West Central Section
In north
- Wind
- Easterly or northeasterly 3 to 5, occasionally 6 in southeast.
- Sea state
- Moderate, occasionally rough in far south.
- Weather
- Mainly fair in east, occasional rain or drizzle in west, fog patches until later in southwest.
- Visibility
- Good in east, moderate or good, occasionally poor in west but very poor until later in southwest.
In south
- Wind
- Cyclonic, becoming northeasterly later, 4 to 6, occasionally 3 in west and 7 in northeast.
- Sea state
- Moderate or rough.
- Weather
- Occasional rain or drizzle, fog patches until later in west.
- Visibility
- Moderate or good, occasionally poor, but very poor until later in west.
Denmark Strait
- Wind
- Northerly or northwesterly 3 to 5 at first in far east, otherwise variable 2 to 4, becoming southwesterly 4 or 5 later in west.
- Sea state
- Moderate occasionally slight.
- Weather
- Fog patches in south.
- Visibility
- Moderate or good, occasionally very poor in south.
North Iceland
In north
- Wind
- Northerly or northeasterly 4 or 5, decreasing 3 at times in west, occasionally 6 in east.
- Sea state
- Moderate, occasionally slight in far northwest and rough in far southeast.
- Weather
- Occasional rain or drizzle in southeast, fog patches until later.
- Visibility
- Moderate or good, occasionally very poor until later.
In south
- Wind
- Cyclonic becoming northerly or northwesterly, 4 to 6, increasing 7 at times in south.
- Sea state
- Moderate or rough.
- Weather
- Rain at times in east and also until later in west, fog patches in west.
- Visibility
- Moderate or good, occasionally poor in east and very poor in west.
Norwegian Basin
- Wind
- Cyclonic until later in far northwest, otherwise westerly or southwesterly, 4 to 6, occasionally 7 at first in east.
- Sea state
- Moderate or rough.
- Weather
- Rain or showers.
- Visibility
- Good, occasionally poor.
Outlook for the following 24 hours
Risk of gales in Shannon and East Central Section.
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.