High seas forecast and storm warnings
The general synopsis for UK
At 080000UTC, low 64 north 15 west 991 expected 64 north 23 west 992 by 090000UTC. Low 48 north 58 west 1003 expected 51 north 52 west 1000 by same time. Low 58 north 23 west 993 losing its identity.
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Westerly or northwesterly 4 to 6.
- Sea state
- Rough.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
Shannon
- Wind
- West or southwest 5 to 7, veering west or northwest 4 to 6.
- Sea state
- Rough or very rough.
- Weather
- Thundery showers.
- Visibility
- Good, occasionally moderate.
Rockall
- Wind
- Southwesterly 4 to 6, becoming cyclonic 5 to 7, perhaps gale 8 later in south, occasionally 4 later in north.
- Sea state
- Rough or very rough.
- Weather
- Thundery showers.
- Visibility
- Good, occasionally poor.
Bailey
- Wind
- Southwest veering west later 3 to 5, becoming cyclonic 2 to 4 for a time.
- Sea state
- Moderate or rough.
- Weather
- Thundery showers.
- Visibility
- Good, occasionally poor.
Faeroes
- Wind
- Cyclonic 3 to 5, occasionally 2 later.
- Sea state
- Moderate or rough.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
Southeast Iceland
- Wind
- Cyclonic 3 to 5, occasionally 2 later.
- Sea state
- Moderate or rough.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
East Northern Section
In north
- Wind
- Cyclonic 4 to 6, occasionally 7 later in far southwest.
- Sea state
- Moderate or rough.
- Weather
- Rain or showers.
- Visibility
- Good, occasionally poor.
In south
- Wind
- Cyclonic 5 to 7, occasionally gale 8 at first in south, becoming westerly or northwesterly 4 to 6, occasionally 7 later in north.
- Sea state
- Rough, occasionally very rough in south and moderate in north.
- Weather
- Rain or showers, perhaps thundery.
- Visibility
- Good, occasionally poor.
West Northern Section
In north
- Wind
- Cyclonic mainly northerly or northwesterly 4 to 6, occasionally 7 in east, becoming variable 2 to 4 later in west.
- Sea state
- Moderate or rough, slight at times in far west.
- Weather
- Rain or showers in east, fog patches later in west.
- Visibility
- Good, occasionally poor in east, and very poor later in west.
In south
- Wind
- Northwesterly backing westerly 4 to 6, occasionally 7 at first in southeast, becoming variable 2 to 4 later in west.
- Sea state
- Moderate, occasionally rough in east.
- Weather
- Showers at first in east, then occasional drizzle.
- Visibility
- Good, occasionally poor.
East Central Section
In north
- Wind
- Southwesterly at first east, otherwise northwesterly or northwesterly 6 or 7, occasionally gale 8 at first, decreasing 4 to 6 later.
- Sea state
- Rough or very rough, occasionally moderate later in west.
- Weather
- Showers, perhaps thundery.
- Visibility
- Good, occasionally moderate.
In south
- Wind
- Westerly 4 to 6, occasionally 7 at first in north, decreasing 3 or 4 later, becoming variable 3 or less later in far southwest.
- Sea state
- Rough, occasionally very rough at first in north and moderate later in southwest.
- Weather
- Showers, then fair for a time, rain later in southwest.
- Visibility
- Good, occasionally moderate.
West Central Section
In northeast
- Wind
- Westerly or northwesterly 4 to 6, occasionally 7 at first.
- Sea state
- Moderate or rough.
- Weather
- Showers at first.
- Visibility
- Moderate or good.
In rest of area
- Wind
- Cyclonic 3 to 5.
- Sea state
- Moderate or rough, becoming moderate.
- Weather
- Rain and drizzle spreading northeastwards, perhaps thundery for a time in south, fog patches later in west and south.
- Visibility
- Moderate or good, becoming moderate to very poor.
Denmark Strait
- Wind
- Northerly or northeasterly 6 or 7, but variable 2 to 4 in far southwest.
- Sea state
- Moderate or rough.
- Weather
- Occasional rain or drizzle, fog patches.
- Visibility
- Moderate or poor, occasionally very poor, but good at times in south.
North Iceland
In north
- Wind
- Easterly or southeasterly 3 to 5, becoming variable 2 to 4, then cyclonic mainly northerly 3 to 5 later.
- Sea state
- Mainly moderate.
- Weather
- Extensive fog, becoming fog patches later in west, occasional rain and drizzle.
- Visibility
- Poor or very poor, occasionally moderate later.
In south
- Wind
- Easterly or southeasterly becoming cyclonic later, 4 to 6, occasionally variable 2 to 4 for a time in southeast.
- Sea state
- Moderate, occasionally rough at first in south.
- Weather
- Fog banks and occasional rain.
- Visibility
- Moderate to very poor, occasionally good later in south and later in east.
Norwegian Basin
- Wind
- Southerly or southeasterly 4 to 6, becoming variable 2 to 4 later.
- Sea state
- Moderate, occasionally rough until later, slight at times in far east.
- Weather
- Fog banks at first in west, otherwise occasional rain.
- Visibility
- Moderate or poor, occasionally good, but very poor at first in west.
Outlook for the following 24 hours
A risk of gales in West Northern Section and West Central Section. Extensive fog expected in north Iceland.
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.