Close window
Close window
This section of the new site isn't ready yet. We've brought you back to the current site.

Extended outlook

2100 UTC Friday 14 December to 2100 UTC Monday 17 December 2018

Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 122100 UTC

Cullercoats

On Friday evening high pressure, 1037, is centred across Scandinavia, with a ridge extending down to Dover. Meanwhile, a deep low pressure area, 959, lies to the south-west of Iceland, moving very slowly north. In its wake, it develops a secondary low, 1000, reaching western Sole by Saturday morning. This low tracks north while deepening, reaching Faeroes by Sunday afternoon, before filling over South East Iceland during the evening. However, another deep Atlantic low expected south of Iceland by Monday evening, moving steadily towards the northeast. Occasional near gales expected over Fair Isle Friday evening, increasing to gale strength overnight. Near gales to gales spreading to most Cullercoats on Saturday, but increasing further overnight with severe gales expected over Viking, Forties, Cromarty and Fair Isle. Winds slowly easing from the south on Sunday, with occasional strong to gale force winds persisting in the far northeast, and perhaps developing again in the far northwest

Niton

On Friday evening the Azores high lies to the south, with a weak ridge covering Iberia. Meanwhile, a deep low pressure area, 959, lies to the south-west of Iceland, moving very slowly north. In its wake, it develops a secondary low, 1000, reaching western Sole by Saturday morning. This low tracks rapidly north, away from Niton, but is followed by a trough moving steadily east across Niton on Sunday. However, another deep Atlantic low expected south of Iceland by Monday evening, moving steadily towards the northeast. Occasional strong to near gale winds expected across central and northern Niton on Friday evening and overnight. Strong winds then expected at times through Saturday, but generally easing Saturday night. Winds then increasing again from the west on Sunday, with gales for a time in Biscay later. Widespread gales then likely to develop in the west on Monday

Portpatrick

On Friday evening high pressure, 1037, is centred across Scandinavia, with a ridge extending down to Dover. Meanwhile, a deep low pressure area, 959, lies to the south-west of Iceland, moving very slowly north. In its wake, it develops a secondary low, 1000, reaching western Sole by Saturday morning. This low tracks north while deepening, reaching Faeroes by Sunday afternoon, before filling over South East Iceland during the evening. However, another deep Atlantic low expected south of Iceland by Monday evening, moving steadily towards the northeast. Near gales or gales across much of Portpatrick on Friday evening, increasing severe gale at times in the north and west overnight, then moderating on Saturday over all but the far northeast. Gales then continuing in the far northeast on Sunday, then further widespread gales or severe gales currently expected to develop on Monday

Marine weather extended outlook for the next 3 to 5 days

The extended outlooks are issued once a day, at 2300 GMT and cover the next 3 to 5 days.

For the extended outlooks the waters surrounding the British Isles are divided into three areas; Cullercoats, Portpatrick and Niton. These three areas reflect the coverage areas of the UK's Navtex transmitters, which overlap in some areas.

The extended outlook forecast contains details of the likelihood of gales or storms, a general synopsis and a general forecast for the area of coverage of each Navtex transmitter.

 

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.

Follow us on

Facebook, Twitter, YouTube, Instagram, Snapchat, or LinkedIn Facebook Follow @metoffice on Twitter YouTube Instagram Snapchat LinkedIn