High seas forecast and storm warnings
The general synopsis for UK
At 180000UTC, high 43 north 37 west 1032 dissipates by 190000UTC. Low 55 north 48 west 984 moves northeast and loses its identity by same time. Low 64 north 39 west 972 slow moving with little change.
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Easterly or northeasterly 3 to 5, but variable 2 to 4 in west.
- Sea state
- Slight or moderate, occasionally rough later in west.
- Weather
- Mainly fair.
- Visibility
- Good.
Shannon
- Wind
- In southeast, variable 2 to 4. in northwest, southerly or southwesterly 4 to 6.
- Sea state
- In southeast, slight or moderate, occasionally rough later. in northwest, moderate or rough.
- Weather
- In southeast, mainly fair. in northwest, occasional rain.
- Visibility
- In southeast, good. in northwest, good, occasionally poor.
Rockall
- Wind
- Southerly or southwesterly 4 to 6, occasionally 7 in far northwest.
- Sea state
- Moderate or rough but very rough in northwest.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally poor.
Bailey
- Wind
- Southerly or southwesterly 6 to gale 8, increasing severe gale 9 for a time in north.
- Sea state
- Rough or very rough, becoming very rough or high.
- Weather
- Occasional rain or drizzle.
- Visibility
- Good, occasionally poor.
Faeroes
- Wind
- Southerly or southwesterly 6 to gale 8.
- Sea state
- Moderate or rough at first in west, otherwise very rough or high.
- Weather
- Occasional rain or squally showers.
- Visibility
- Moderate or good, occasionally poor.
Southeast Iceland
- Wind
- Southerly or southwesterly 6 to gale 8, occasionally severe gale 9.
- Sea state
- Very rough or high.
- Weather
- Occasional rain or squally showers.
- Visibility
- Moderate or good, occasionally poor.
East Northern Section
- Wind
- Southerly or southwesterly 7 to severe gale 9.
- Sea state
- Very rough or high.
- Weather
- Rain or showers.
- Visibility
- Moderate or poor.
West Northern Section
- Storm warning
-
Issued:
At 180000UTC, low 64 north 39 west 972 slow moving with little change. There is a risk of winds reaching storm force 10 in the southeastern semicircle and within 150 and 250 miles of the centre from 181600UTC.
In far northwest
- Wind
- Cyclonic 3 to 5, occasionally 6 later.
- Sea state
- Very rough, occasionally rough.
- Weather
- Rain then showers, thundery at times.
- Visibility
- Good, occasionally poor. Showers. Moderate or good.
In rest of area
- Wind
- Southerly or southwesterly 7 to severe gale 9, occasionally storm 10 in northwest.
- Sea state
- Very rough or high.
- Weather
- Rain then showers, thundery at times.
- Visibility
- Moderate or poor.
East Central Section
In northwest half of area
- Wind
- Variable 3o rain less at first in east, otherwise westerly or southwesterly 4 to 6, occasionally 7 in far northwest.
- Sea state
- Rough or very rough.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally poor.
In southeastern half of area
- Wind
- Southerly or southeasterly 3 to 5 in central areas, otherwise variable 2 to 4.
- Sea state
- Moderate or rough.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally poor.
West Central Section
In southeastern half of area
- Wind
- Southwesterly 4 to 6.
- Sea state
- Rough or very rough, occasionally moderate later.
- Weather
- Mainly fair, rain then showers later.
- Visibility
- Good, occasionally poor later.
In northwestern half of area
- Wind
- Southwesterly 6 to gale 8, veering westerly 4 to 6, increasing 7 or gale 8 later in far west.
- Sea state
- Rough or very rough.
- Weather
- Occasional rain.
- Visibility
- Good, occasionally poor.
Denmark Strait
- Wind
- Southerly 6 to gale 8 becoming cyclonic 4 to 6 in north and west.
- Sea state
- Very rough or high.
- Weather
- Rain at times, occasional snow near greenland coast.
- Visibility
- A risk of light to moderate icing in far north with temperatures of between ms 03 and ms 06.
North Iceland
In north
- Wind
- Cyclonic 4 to 6, increasing 6 to gale 8 for a time.
- Sea state
- Moderate or rough becoming very rough occasionally high.
- Weather
- Rain, showers, occasional snow.
- Visibility
In south
- Wind
- Southerly or southwesterly 6 to gale 8, occasionally severe gale 9 in south.
- Sea state
- Rough or very rough becoming very rough or high later.
- Weather
- Rain or south.
- Visibility
- Moderate or good, occasionally poor.
Norwegian Basin
- Wind
- Southwesterly 5 to 7, increasing 7 to severe gale 9.
- Sea state
- Moderate or rough becoming very rough or high later.
- Weather
- Occasional rain and drizzle.
- Visibility
- Good, occlusion poor.
Outlook for the following 24 hours
Severe gales are expected in East Northern Section, West Northern Section, northern Iceland, and Norwegian Basin with a risk of severe gales in Denmark Strait. Gales are expected in Faeroes, Southeast Iceland, East Central Section and West Central Section with a risk of gales in Bailey. Strong winds are expected in all remaining areas.
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.