Coast and sea
The general synopsis for UK
At 260000UTC, low 54 north 40 west 940 expected 53 north 33 west 956 by 270000UTC. New lows expected 59 north 28 west 975 and 48 west 12 west 961 by same time.
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- High seas storm warning
-
Issued:
At 260000UTC, low 54 north 40 west 940 expected 53 north 33 west 956 by 270000UTC. Westerly winds will reach violent storm force 11 at times in southwest quadrant between 100 and 250 miles of low centre until 261300UTC. Westerly winds will reach storm force 10 in southern semicircle between 100 and 450 miles of low centre until 270700UTC.
- Wind
- Cyclonic 5 to 7, increasing gale 8 to storm 10 later, perhaps violent storm 11 later.
- Sea state
- Rough or very rough, becoming very rough or high.
- Weather
- Rain.
- Visibility
- Moderate or poor.
Shannon
- Wind
- Southeast 7 to severe gale 9, veering southwest 4 to 6, then north 7 to severe gale 9 later.
- Sea state
- Rough or very rough.
- Weather
- Rain.
- Visibility
- Good, occasionally poor.
Rockall
- Wind
- Southeast 6 to gale 8, occasionally severe gale 9 until later, backing northeast later.
- Sea state
- Rough or very rough, occasionally high.
- Weather
- Rain.
- Visibility
- Good, occasionally poor.
Bailey
- Wind
- Southeast 6 to gale 8, occasionally severe gale 9 until later.
- Sea state
- Rough or very rough, occasionally high.
- Weather
- Rain.
- Visibility
- Good, occasionally poor.
Faeroes
- Wind
- Easterly or southeasterly 6 to gale 8, occasionally severe gale 9 later.
- Sea state
- Rough or very rough, occasionally high later.
- Weather
- Wintry showers.
- Visibility
- Good, occasionally poor.
Southeast Iceland
- Wind
- Easterly or southeasterly 6 to gale 8, occasionally severe gale 9 later.
- Sea state
- Rough or very rough, occasionally high later.
- Weather
- Wintry showers.
- Visibility
- Good, occasionally poor.
East Northern Section
In north
- Wind
- Easterly or northeasterly 7 to severe gale 9.
- Sea state
- Very rough or high, occasionally very high later.
- Weather
- Rain or wintry showers.
- Visibility
- Moderate or good, occasionally poor.
In south
- Wind
- Cyclonic 6 to gale 8, decreasing 4 to 6 later.
- Sea state
- Very rough or high.
- Weather
- Rain or wintry showers.
- Visibility
- Moderate or good, occasionally poor.
West Northern Section
In north
- Wind
- Easterly or northeasterly 7 to severe gale 9.
- Sea state
- Very rough or high.
- Weather
- Rain or wintry showers.
- Visibility
- Moderate, occasionally poor.
In south
- Wind
- Cyclonic 5 to 7, occasionally gale 8 in north.
- Sea state
- Very rough or high.
- Weather
- Rain or wintry showers.
- Visibility
- Moderate or good, occasionally poor.
East Central Section
- Wind
- Westerly or southwesterly 5 to 7, occasionally gale 8 at first, becoming cyclonic 6 to gale 8 later, occasionally severe gale 9 later.
- Sea state
- Very rough or high, occasionally very high later in west.
- Weather
- Rain or wintry showers.
- Visibility
- Moderate or good, occasionally poor.
West Central Section
- High seas storm warning
-
Issued:
At 260000UTC, low 54 north 40 west 940 expected 53 north 33 west 956 by 270000UTC. Westerly winds will reach violent storm force 11 at times in southwest quadrant between 100 and 250 miles of low centre until 261300UTC. Westerly winds will reach storm force 10 in southern semicircle between 100 and 450 miles of low centre until 270700UTC.
- Wind
- Cyclonic gale 8 to storm 10, occasionally violent storm 11 at first.
- Sea state
- High or very high, occasionally phenomenal later.
- Weather
- Rain or snow showers.
- Visibility
- Moderate or poor, occasionally very poor.
Denmark Strait
- Wind
- Northeasterly 6 to gale 8, occasionally severe gale 9 in south.
- Sea state
- Moderate or rough, becoming rough or very rough, occasionally high later in south.
- Weather
- Snow or snow showers.
- Visibility
- Moderate or poor, occasionally very poor. Light or moderate icing within 50 miles of ice edge with temperatures ms03 to ms06. Occasional severe icing within 50 miles of ice edge north of 6 to gale 8 north, with temperatures ms05 to ms08 from 261400utc.
North Iceland
In north
- Wind
- Northerly or northeasterly 4 to 6.
- Sea state
- Slight or moderate.
- Weather
- Snow or snow showers.
- Visibility
- Good, occasionally poor. Light or moderate icing within 50 miles of ice edge with temperatures ms03 to ms06.
In south
- Wind
- Easterly or northeasterly 4 to 6, occasionally 7 later in west.
- Sea state
- Moderate or rough.
- Weather
- Wintry showers.
- Visibility
- Good, occasionally poor. Light or moderate icing within 50 miles of ice edge with temperatures ms03 to ms06.
Norwegian Basin
- Wind
- Easterly or southeasterly 3 to 5, occasionally 6 later in west.
- Sea state
- Moderate, occasionally slight in far east.
- Weather
- Mainly fair.
- Visibility
- Mainly good.
Outlook for following 24 hours
Storm force 10 expected in Sole and West Central Section. Severe gales expected in Rockall, Bailey, Faeroes, Southeast Iceland, East Northern Section, West Northern Section, East Central Section and Denmark Strait. Gales expected in Norwegian Basin.
Unscheduled storm warnings are broadcast via Safetynet and in bulletin WONT54 EGRR available via some internet and ftpmail outlets
The 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.