High seas forecast and storm warnings
The general synopsis for UK
At 150000UTC, low 58 north 38 west 1007 expected 60 north 37 west 1008 by 160000UTC. New low expected 63 north 17 west 1013 by same time. New low expected 57 north 19 west 1011 by that time. at 151200UTC, low 48 north 57 west 1002 expected 45 north 52 west 1009 by 160000UTC. New low expected 51 north 39 west 1004 by same time.
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Mainly north 3 to 5, but variable 2 to 4 at times.
- Sea state
- Slight or moderate.
- Weather
- Showers.
- Visibility
- Good.
Shannon
- Wind
- Variable 2 to 4, becoming southwest 4 or 5.
- Sea state
- Slight or moderate.
- Weather
- Showers or rain later.
- Visibility
- Moderate or good.
Rockall
- Wind
- West backing southwest 3 or 4, becoming cyclonic 4 or 5 later.
- Sea state
- Moderate.
- Weather
- Showers, rain later.
- Visibility
- Moderate or good.
Bailey
- Wind
- West 3 or 4, occasionally 5 at first, becoming variable 3 or less later.
- Sea state
- Mainly moderate.
- Weather
- Showers.
- Visibility
- Good.
Faeroes
- Wind
- West or northwest, 3 to 5, becoming variable 3 or less.
- Sea state
- Slight or moderate.
- Weather
- Rain or showers.
- Visibility
- Good, occasionally poor.
Southeast Iceland
- Wind
- Variable 2 to 4, but northerly or northwesterly 5 at first in northeast.
- Sea state
- Moderate or rough, becoming slight or moderate.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally poor.
East Northern Section
In north
- Wind
- Cyclonic 3 to 5, but variable 3 or less until later in northwest.
- Sea state
- Slight or moderate, occasionally rough at first in far southeast.
- Weather
- Showers, rain at times.
- Visibility
- Good, occasionally moderate.
In south
- Wind
- Cyclonic 3 to 5, occasionally 6 at first in south.
- Sea state
- Moderate.
- Weather
- Fair at first in east, otherwise occasional rain or showers, fog patches at times in south.
- Visibility
- Moderate or good, occasionally very poor in south.
West Northern Section
In north
- Wind
- Variable 2 to 4 until later in far north, otherwise cyclonic mainly easterly, 3 to 5.
- Sea state
- Slight or moderate, occasionally rough in far south and in north.
- Weather
- Rain or showers, fog patches later.
- Visibility
- Moderate or good, occasionally poor in south, but very poor at times later.
In south
- Wind
- Southerly or southeasterly 4 to 6, becoming cyclonic, mainly southwesterly, 3 to 5.
- Sea state
- Moderate, occasionally rough at first.
- Weather
- Rain or drizzle at times, with fog patches.
- Visibility
- Moderate or good, occasionally very poor.
East Central Section
In north
- Wind
- Cyclonic mainly southerly veering mainly westerly 3 to 5, occasionally 6 at first.
- Sea state
- Moderate, occasionally rough at first.
- Weather
- Rain or showers, perhaps thundery, fog patches.
- Visibility
- Moderate or good, occasionally very poor.
In south
- Wind
- Variable 3 or less at first in east, otherwise southerly 3 to 5, becoming variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Rain or showers, fog patches.
- Visibility
- Moderate or good, occasionally very poor.
West Central Section
In north
- Wind
- Westerly or southwesterly 3 to 5, becoming cyclonic 4 to 6 later.
- Sea state
- Moderate.
- Weather
- Drizzle, then rain or thundery showers, fog patches.
- Visibility
- Moderate or good, occasionally very poor.
In south
- Wind
- Variable 2 to 4, becoming cyclonic 4 to 6.
- Sea state
- Moderate, occasionally slight in southeast.
- Weather
- Rain or thundery showers, fog patches.
- Visibility
- Moderate or good, occasionally very poor.
Denmark Strait
- Wind
- Southwesterly 2 to 4, occasionally 5 at first, but variable 3 or less in east.
- Sea state
- Slight, occasionally moderate at first.
- Weather
- Drizzle, fog patches later in far west and far north.
- Visibility
- Moderate or good, occasionally very poor later in far west and far north.
North Iceland
In south
- Wind
- Westerly or northwesterly 4 to 6, becoming variable 3 or less later in west.
- Sea state
- Slight or moderate, occasionally rough at first in southeast.
- Weather
- Drizzle at times.
- Visibility
- Moderate or good.
In north
- Wind
- Variable 2 to 4.
- Sea state
- Slight or moderate.
- Weather
- Drizzle, fog patches later in west.
- Visibility
- Moderate or good, occasionally very poor later in west.
Norwegian Basin
- Wind
- Cyclonic, westerly or southwesterly veering westerly or northwesterly, 3 to 5.
- Sea state
- Moderate.
- Weather
- Rain or showers, fog patches at first.
- Visibility
- Moderate or good, occasionally very poor at first.
Outlook for the following 24 hours
A risk of gales in West Northern Section and in the south of West 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.