High seas forecast and storm warnings
The general synopsis for UK
At 151200UTC, low 46 north 44 west 1007 expected 53 north 36 west 1002 by 161200UTC. New low expected 56 north 14 west 1013 by same time. New high expected 65 north 11 west 1017 by that time. at 151200UTC, low 60 north 37 west 1006 losing its identity
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Northerly 3 to 5 becoming variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Mainly fair.
- Visibility
- Good.
Shannon
- Wind
- Variable 2 to 4 becoming west or southwest 3 to 5.
- Sea state
- Slight or moderate.
- Weather
- Fair then occasional rain, fog patches later.
- Visibility
- Moderate or good, occasionally very poor later.
Rockall
- Wind
- Variable 2 to 4 becoming cyclonic 3 to 5.
- Sea state
- Moderate.
- Weather
- Occasional rain, fog patches later.
- Visibility
- Moderate or good, occasionally poor at first and very poor later.
Bailey
- Wind
- In south, westerly 3 to 5 becoming variable 2 to 4. in north, cyclonic 2 to 4 becoming variable 3 or less.
- Sea state
- Moderate.
- Weather
- Showers.
- Visibility
- Good, occasionally moderate.
Faeroes
- Wind
- Variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally moderate.
Southeast Iceland
- Wind
- Variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally moderate.
East Northern Section
In northern half of the area
- Wind
- Variable 2 to 4, becoming easterly or southeasterly 3 to 5 in southwest.
- Sea state
- Slight or moderate.
- Weather
- Showers, mainly in east, then rain later in far southwest.
- Visibility
- Good, occasionally moderate.
In southern half of the area
- Wind
- Cyclonic 3 to 5, becoming southeasterly 5 or 6 later in far southwest.
- Sea state
- Moderate.
- Weather
- Rain or showers, fog patches at first.
- Visibility
- Moderate or good, occasionally very poor at first, then becoming poor later in far southwest.
West Northern Section
In northern half of the area
- Wind
- Variable 3 or less at first in far north, otherwise cyclonic 3 to 5, occasionally 6 later in far west.
- Sea state
- Slight at first in far north, otherwise moderate.
- Weather
- Fair at first in far north, otherwise rain or drizzle at times, fog patches in south.
- Visibility
- Good at first in far north, otherwise moderate of good, becoming poor at times, but occasionally very poor in south.
In southern half of the area
- Wind
- Southwesterly 3 or 4 becoming variable 2 to 4, then becoming cyclonic 4 to 6 later in south.
- Sea state
- Moderate.
- Weather
- Occasional drizzle, then rain later, fog patches.
- Visibility
- Moderate or good, occasionally very poor.
East Central Section
In eastern half of the area
- Wind
- Southerly or southwesterly becoming cyclonic, 3 to 5, occasionally 6 at first in north, becoming variable 2 to 4 later.
- Sea state
- Moderate in north, slight or moderate in south.
- Weather
- Rain or drizzle at times, but becoming fair later in north, fog patches at first.
- Visibility
- Moderate or good, occasionally very poor at first and poor later, but then becoming good later in north.
In western half of the area
- Wind
- Westerly becoming variable 2 to 4, then becoming southwesterly 4 to 6 later in south but cyclonic 4 to 6 later in north.
- Sea state
- Moderate in north, slight or moderate in south.
- Weather
- Fair at first in north, otherwise rain or drizzle at times, fog patches.
- Visibility
- Good at first in north, otherwise moderate or good, occasionally very poor.
West Central Section
In northeastern half of the area
- Wind
- Variable 2 to 4, becoming cyclonic mainly southwesterly 4 to 6.
- Sea state
- Moderate.
- Weather
- Mainly fair then rain, thundery at times, fog banks developing.
- Visibility
- Good, becoming moderate to very poor.
In southwestern half of the area
- Wind
- Cyclonic 4 to 6, becoming variable 2 to 4 later in south.
- Sea state
- Moderate.
- Weather
- Fair at first in far north, otherwise rain or thundery showers, fog banks, perhaps extensive fog for a time.
- Visibility
- Moderate to very poor, occasionally good.
Denmark Strait
- Wind
- Variable 3 or less at first in far north, otherwise southerly or southwesterly 3 to 5, but becoming variable 3 or less later in south.
- Sea state
- Slight, occasionally moderate.
- Weather
- Rain later in far west, fog patches near greenland.
- Visibility
- Moderate or good, occasionally very poor near greenland.
North Iceland
In western half of the area
- Wind
- Variable 2 to 4, becoming southwesterly 3 or 4 later.
- Sea state
- Slight, occasionally moderate at first.
- Weather
- Fog banks except in south.
- Visibility
- Moderate or good, occasionally very poor except in south.
In eastern half of the area
- Wind
- Westerly or northwesterly 3 to 5, occasionally 6 at first in south, becoming variable 2 to 4 later.
- Sea state
- Slight or moderate.
- Weather
- Occasional rain in southeast.
- Visibility
- Moderate or good.
Norwegian Basin
- Wind
- Southwesterly at first in east, otherwise westerly or northwesterly, but veering northerly later in northwest, 3 to 5.
- Sea state
- Moderate, occasionally slight near norway.
- Weather
- Rain at times.
- Visibility
- Good, occasionally poor in north and moderate in south.
Outlook for the following 24 hours
Gales expected in East Northern Section and West Northern 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.