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

2000 UTC Wednesday 20 February to 2000 UTC Saturday 23 February 2019

Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 182014 UTC

Cullercoats

On Wednesday evening low 989 expected to the northwest of the Faeroes, with a weak ridge of high pressure across the far south of the Cullercoats area. The low expected to fill on Thursday as high pressure becomes established across the central and southern North Sea. A further low is then likely to transfer northeast between Iceland and the Faeroes on Friday, with the ridge of high pressure then extending northwest across much of Cullercoats. Further frontal troughs then currently expected to affect the north of the forecast area on Saturday, with the ridge persisting elsewhere. Near gales likely for a time in the north of the area on Wednesday evening, then gales expected to become widespread for a time north of 58 N on Friday, possibly severe gale in places. Gales may then develop again in the far northwest by Saturday evening

Niton

On Wednesday evening, a deep Atlantic low and associated frontal troughs will bring a strong cyclonic flow to the west of the Niton area, but with a ridge of high pressure across more eastern parts. Little change is expected on Thursday, with the ridge persisting in the east, and a further deepening low expected to move northeast, and to be just west of sea area Shannon by Thursday evening. Little general change to the synoptic situation across Niton is likely through Friday, with current expectations for high pressure to extend further west on Saturday. Gales expected in the west on Wednesday evening, these persisting through Thursday, and becoming severe in the far west during Thursday evening. Gale to severe gale force winds then likely to transfer away to the north on Friday morning, but with further gales following to the west of the Niton area during the day. These then currently expected to reduce from the south on Saturday

Portpatrick

Wednesday evening low 989 expected northwest of the Faeroes, with a weak ridge of high pressure through central parts of the Portpatrick area, and with a strong cyclonic flow in the far southwest. A further deepening low then forecast to move northeast on Thursday, to be just to the west of sea area Shannon by Thursday evening. This then transferring north during Friday, but with a strong cyclonic flow returning in the west and northwest by midnight Saturday. A strong cyclonic flow then likely across most parts on Saturday, but with a weak ridge in the far south by evening. Gales expected in the far southwest Wednesday evening, spreading northwest overnight but moderating in the north. Gales expected to continue in the southwest on Thursday, with severe gales likely in the far southwest by Thursday evening. Gales then extending across all but the far northwest and far southwest on Friday, with gales becoming confined to northern parts on Saturday

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