High seas forecast and storm warnings
The general synopsis for UK
At 051200UTC, high 51 north 29 west 1024 expected 48 north 07 west 1028 by 061200UTC. New low 63 north 17 east 997 expected by same time. Low 57 north 03 west moving northeastwards and losing its identity by that time. at 051200UTC, low 51 north 56 west 1000 expected 48 north 50 west 1007 by 061200UTC. New low expected 64 north 27 west 1002 by same time.
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Northwest becoming variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
Shannon
- Wind
- Cyclonic mainly northwest veering southwest later, 4 to 6, decreasing 3 at times later.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally poor at first.
Rockall
- Wind
- Cyclonic mainly northwest veering southwest later, 4 to 6, decreasing 3 at times later.
- Sea state
- Moderate or rough at first, otherwise slight or moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally poor at first.
Bailey
- Wind
- North 3 to 5, backing southwest 4 to 6.
- Sea state
- Occasionally rough later in southwest, otherwise moderate.
- Weather
- Showers.
- Visibility
- Good.
Faeroes
- Wind
- North backing southwest later, 3 to 5.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
Southeast Iceland
- Wind
- Cyclonic becoming southwesterly 3 to 5.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
East Northern Section
In north
- Wind
- Cyclonic mainly southerly or southwesterly 3 to 5, occasionally 2 in northwest.
- Sea state
- Moderate, occasionally rough in south and later in far northwest.
- Weather
- Occasional rain.
- Visibility
- Moderate or good, occasionally poor.
In south
- Wind
- Westerly or southwesterly 4 to 6, occasionally 7 in south.
- Sea state
- Moderate or rough.
- Weather
- Occasional rain or drizzle.
- Visibility
- Moderate or good, occasionally poor.
West Northern Section
In northern half of the area
- Wind
- Cyclonic 2 to 4, increasing 5 to 7, perhaps gale 8 later in north and 4 in south.
- Sea state
- Slight or moderate, becoming moderate or rough later.
- Weather
- Rain or drizzle at times, fog patches at first in west.
- Visibility
- Moderate or good, poor at times, but occasionally very poor at first in west.
In southern half of the area
- Wind
- Southwesterly 4 to 6, occasionally 7 at first in southeast, veering westerly or northwesterly 3 to 5 in north.
- Sea state
- Moderate or rough.
- Weather
- Rain or drizzle, fog patches developing in west.
- Visibility
- Moderate or good, occasionally poor in east and very poor in west.
East Central Section
In northern half of the area
- Wind
- Northwesterly backing westerly or southwesterly 3 to 5, increasing 6 at times in north and occasional 2 in south.
- Sea state
- Moderate becoming moderate or rough.
- Weather
- Rain at times in far north, fair elsewhere.
- Visibility
- Good, becoming moderate or poor at times in north.
In southern half of the area
- Wind
- Northerly or northeasterly 3 to 5, occasionally 6 in south, but variable 3 or less at times in north.
- Sea state
- Moderate.
- Weather
- Fair in north, rain at times in south.
- Visibility
- Good, but moderate or poor at times in south.
West Central Section
In northern half of the area
- Wind
- Southerly or southwesterly 3 to 5, occasionally 6 in north.
- Sea state
- Slight or moderate.
- Weather
- Drizzle or rain in far north, mainly fair elsewhere.
- Visibility
- Moderate or good, becoming poor at times in north.
In southern half of the area
- Wind
- Variable mainly easterly or southeasterly 2 to 4, becoming south 4 or 5 later in west.
- Sea state
- Slight or moderate.
- Weather
- Mainly fair.
- Visibility
- Moderate or good.
Denmark Strait
- Wind
- Variable 2 to 4, becoming cyclonic mainly northeasterly 5 to 7, occasionally gale 8 later in south, but 4 at times later in north.
- Sea state
- Slight or moderate becoming moderate or rough.
- Weather
- Rain or drizzle at times, fog patches at first except in far north, mainly fair later in north and west.
- Visibility
- Moderate to poor, occasionally very poor at first, becoming mainly good later in north and west.
North Iceland
In northwestern half of the area
- Wind
- Cyclonic becoming northerly or northeasterly 4 to 6, occasionally 7 in far northwest.
- Sea state
- Moderate or rough.
- Weather
- Drizzle or rain at times, fog patches at first.
- Visibility
- Moderate or good, occasionally poor, but very poor at first in north.
In southeastern half of the area
- Wind
- Variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Drizzle at times.
- Visibility
- Good, occasionally moderate.
Norwegian Basin
- Wind
- Northerly or northeasterly backing northwesterly 3 to 5, occasionally 6 in south until later, decreasing 2 later in far west.
- Sea state
- Slight or moderate.
- Weather
- Rain or showers until later in far southeast, fair elsewhere.
- Visibility
- Moderate or good, occasionally poor in far southeast.
Outlook for the following 24 hours
Gales expected in the far northwest of East Northern Section, the northeast of West Northern Section and the south of 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.