High seas forecast and storm warnings
The general synopsis for UK
At 110000UTC, low 65 north 35 west 980 losing its identity by 120000UTC. New low expected 67 north 18 west 976 by same time. Low 47 north 36 west 1006 expected 57 north 15 west 997 by that time. at 110000UTC, high 43 north 22 west 1025 expected 47 north 08 west 1026 by 120000UTC. New low expected 53 north 48 west 988 by same time
Issued at: .
For the period to .
High seas forecast and storm warnings map
Sole
- Wind
- Northwest 3 to 5, becoming variable 2 to 4, then southwest 4 to 6.
- Sea state
- Moderate, becoming rough in northwest.
- Weather
- Showers at first.
- Visibility
- Good.
Shannon
- Wind
- West 3 to 5, backing south or southwest 6 to gale 8 later.
- Sea state
- Moderate or rough becoming rough or very rough.
- Weather
- Rain.
- Visibility
- Good, occasionally poor.
Rockall
- Wind
- West 4 to 6, backing south or southwest 6 to gale 8 later.
- Sea state
- Rough or very rough.
- Weather
- Rain.
- Visibility
- Good, occasionally poor.
Bailey
- Wind
- Southwest 6 to gale 8, veering west 5 or 6 later.
- Sea state
- Rough or very rough, occasionally high.
- Weather
- Rain.
- Visibility
- Good, occasionally poor.
Faeroes
- Wind
- Southwesterly 6 to gale 8, decreasing 4 to 6 later.
- Sea state
- Rough or very rough.
- Weather
- Squally showers.
- Visibility
- Good, occasionally poor.
Southeast Iceland
- Wind
- Southwesterly 6 to gale 8, decreasing 4 to 6 later.
- Sea state
- Rough or very rough, occasionally high.
- Weather
- Squally showers.
- Visibility
- Good, occasionally poor.
East Northern Section
In far northwest
- Wind
- Southwesterly, becoming cyclonic, 4 to 6, then northwesterly 3 to 5 later.
- Sea state
- Rough or very rough becoming moderate or rough.
- Weather
- Squally showers at first.
- Visibility
- Good, occasionally poor at first.
In rest of the area
- Wind
- Southwesterly 6 to gale 8, becoming cyclonic 5 to 7, then westerly 4 to 6 later.
- Sea state
- Rough or very rough, occasionally high.
- Weather
- Rain or squally showers, mainly fair later.
- Visibility
- Moderate or good, occasionally poor.
West Northern Section
In northern half of the area
- Wind
- Cyclonic 6 to gale 8, becoming northwesterly 5 to 7, backing southwesterly 3 to 5 later.
- Sea state
- Rough or very rough becoming moderate or rough.
- Weather
- Occasional rain or showers, becoming fair for a time later.
- Visibility
- Moderate or good, occasionally poor.
In southern half of the area
- Wind
- Southwesterly 6 to gale 8, veering westerly, backing southerly or southeasterly later, 4 to 6.
- Sea state
- Rough or very rough becoming moderate or rough.
- Weather
- Occasional rain or showers, becoming fair for a time later.
- Visibility
- Moderate or good, occasionally poor.
East Central Section
- Wind
- Variable 2 to 4 in far southeast, otherwise cyclonic, mainly southwesterly, 4 to 6, increasing 6 to gale 8 for a time.
- Sea state
- Moderate or rough, occasionally very rough in north.
- Weather
- Occasional rain or thundery showers.
- Visibility
- Moderate or good, occasionally poor.
West Central Section
- Wind
- Cyclonic, becoming westerly or northwesterly, 4 to 6, occasionally 7 at first in southeast, backing southerly or southwesterly 5 to 7 later.
- Sea state
- Moderate or rough.
- Weather
- Occasional rain or thundery showers, becoming fair for a time.
- Visibility
- Moderate or good, occasionally poor.
Denmark Strait
- Storm warning
-
Issued:
Northerly or northeasterly winds are expected to reach storm force 10 or violent storm force 11 at times in the east of Denmark Strait north of 67 north and in the northwest of north Iceland.
In eastern half of the area
- Wind
- Cyclonic, mainly northerly or northeasterly gale 8 to storm 10, occasionally violent storm 11 in north.
- Sea state
- Very rough or high, but moderate or rough at first in far north.
- Weather
- Rain, sleet or snow.
- Visibility
- Moderate to very poor.
In western half of the area
- Wind
- Cyclonic 4 to 6, but northeasterly 7 to severe gale 9 at first in west, becoming westerly or southwesterly 3 to 5.
- Sea state
- Very rough occasionally high, becoming moderate or rough.
- Weather
- Rain, sleet or snow, becoming fair.
- Visibility
- Moderate to very poor becoming good.
North Iceland
- Storm warning
-
Issued:
Northerly or northeasterly winds are expected to reach storm force 10 or violent storm force 11 at times in the east of Denmark Strait north of 67 north and in the northwest of north Iceland.
In northwest
- Wind
- Northerly or northeasterly gale 8 to storm 10, occasionally violent storm 11 later in northwest.
- Sea state
- Moderate or rough at first in north, otherwise very rough or high.
- Weather
- Rain or sleet then snow with freezing rain.
- Visibility
- Moderate or poor becoming poor or very poor. Light icing developing later in far northwest with temperatures around ms03.
In rest of the area
- Wind
- Cyclonic 6 to gale 8.
- Sea state
- Moderate or rough becoming rough or very rough.
- Weather
- Rain and drizzle with fog patches, squally showers later in southeast.
- Visibility
- Moderate or good, occasionally very poor, becoming mainly good later in southeast.
Norwegian Basin
- Wind
- Southeasterly 5 to 7 at first in northeast, otherwise southwesterly 5 or 6, increasing 6 to gale 8.
- Sea state
- Moderate or rough, becoming very rough in northwest.
- Weather
- Occasional rain and showers, fair later in east.
- Visibility
- Moderate or good, occasionally poor.
Outlook for the following 24 hours
Storms are expected in Denmark Strait and north Iceland, with gales expected in Norwegian Basin and perhaps in West Central Section as well.
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.