Met Office weather
Extended outlook
Issued at: .
For the period to .
Extended outlook map
Cullercoats
Large Atlantic low centred 240 miles west of Rockall 990 on Wednesday evening, slowly moves north west of Bailey on Thursday evening and continues NE into South East Iceland on Friday evening 993 before becoming complex later on Saturday with a centre moving east into Southern Norwegian Sea and a second centre forming in the mid-Atlantic. Ridge of high pressure extends north from Trafalgar and into Biscay and over Northern France with a weak ridge over the Southern North Sea on Wednesday evening. High moves east over Eastern Germany and declines south towards the Azores on Thursday. A new low forms 400 miles west of Fitzroy on Friday, moving east towards Fitzroy and Biscay on Saturday. Transient ride of high builds over North Sea areas on Saturday. Strong winds expected in all areas north of 55 degrees north on Friday for a time, no widespread fog expected
Niton
Large Atlantic low centred 240 miles west of Rockall 990 on Wednesday evening, slowly moves north west of Bailey on Thursday evening and continues NE into South East Iceland on Friday evening 993 before becoming complex later on Saturday with a centre moving east into Southern Norwegian Sea and a second centre forming in the mid-Atlantic. Ridge of high pressure extends north from Trafalgar and into Biscay and over Northern France with a weak ridge over the Southern North Sea on Wednesday evening. High moves east over Eastern Germany and declines south towards the Azores on Thursday. A new low forms 400 miles west of Fitzroy on Friday, moving east towards Fitzroy and Biscay on Saturday. Transient ride of high builds over North Sea areas on Saturday. Strong winds expected in Fitzroy, Sole, Fastnet and Shannon on Thursday for a time, similarly on Saturday for a time, no widespread fog expected
Portpatrick
Large Atlantic low centred 240 miles west of Rockall 990 on Wednesday evening, slowly moves north west of Bailey on Thursday evening and continues NE into South East Iceland on Friday evening 993 before becoming complex later on Saturday with a centre moving east into Southern Norwegian Sea and a second centre forming in the mid-Atlantic. Ridge of high pressure extends north from Trafalgar and into Biscay and over Northern France with a weak ridge over the Southern North Sea on Wednesday evening. High moves east over Eastern Germany and declines south towards the Azores on Thursday. A new low forms 400 miles west of Fitzroy on Friday, moving east towards Fitzroy and Biscay on Saturday. Transient ride of high builds over North Sea areas on Saturday. Strong winds expected in all areas except Fair Isle from Wednesday evening. Strong winds easing south of 55 degrees North on Saturday but extending into Fair Isle. No widespread fog expected
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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