Met Office weather
Extended outlook
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Low 1006 south of Svalbard deepens as it clears east Monday night. High 1024 southern Norway strengthens as it moves to northeast of Jan Mayen while extending a ridge southeast to the Baltic during Tuesday. This high and ridge then continues slowly east towards the North Cape Wednesday and Thursday. Low complex 1001 south to southwest of Iceland moves south as a filling feature during Tuesday. Low 1007 52N 019W moves south through Tuesday as Low 1006 Biscay tracks north while filling. A further Low 1010 develops 43N 020W Monday night and deepens as it tracks towards Fastnet Tuesday through to Thursday. High 1029 45N 044W Monday evening extends a ridge into Greenland and moves east to reach southwest of the Azores on Thursday as the ridge begins to weaken just west of Iceland. Strong winds build across the north from late Wednesday, but no gales are expected during this period
Niton
Low 1006 south of Svalbard deepens and clears east Monday night. High 1024 southern Norway strengthens and moves to northeast of Jan Mayen while extending a ridge southeast to the Baltic Tuesday. This high and ridge then continues slowly east towards the North Cape Wednesday and Thursday. Low complex 1001 south to southwest of Iceland moves south as a filling feature during Tuesday. Low 1007 52N 019W moves south through Tuesday as Low 1006 Biscay tracks north while filling. A further Low 1010 develops 43N 020W Monday night and deepens as it tracks towards Fastnet Tuesday through to Thursday. High 1029 45N 044W Monday evening extends a ridge into Greenland and moves east to reach southwest of the Azores on Thursday as the ridge begins to weaken just west of Iceland. Gales build over Trafalgar Wednesday and spread to Sole Wednesday night
Portpatrick
Low 1006 south of Svalbard deepens and clears east Monday night. High 1024 southern Norway strengthens and moves to northeast of Jan Mayen while extending a ridge southeast to the Baltic Tuesday. This high and ridge then continues slowly east towards the North Cape Wednesday and Thursday. Low complex 1001 south to southwest of Iceland moves south as a filling feature during Tuesday. Low 1007 52N 019W moves south through Tuesday as Low 1006 Biscay tracks north while filling. A further Low 1010 develops 43N 020W Monday night and deepens as it tracks towards Fastnet Tuesday through to Thursday. High 1029 45N 044W Monday evening extends a ridge into Greenland and moves east to reach southwest of the Azores on Thursday as the ridge begins to weaken just west of Iceland. Brief near gales northern Bailey, southern South East Iceland Monday night and in the far south Wednesday night and Thursday but no gales are expected during this period
The extended outlook information
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.
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