Met Office

Extended outlook

2000 UTC Monday 19 February to 2000 UTC Thursday 22 February 2018

Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 172041 UTC

Cullercoats

On Monday evening low pressure, 947, is slow moving west of Iceland with a frontal trough lying north to south down east coast of UK. At the same time high pressure lies west of Fitzroy and over Scandinavia. On Monday night and Tuesday high pressure 1033 to the south builds, centred sea area Shannon by Tuesday night, with frontal trough becoming slow moving in North Sea and losing its identity. Through Wednesday high pressure 1031 migrates northeast, centred over Scotland midday and North Sea midnight. Also through Wednesday low pressure in the Atlantic becomes complex, with an increased pressure gradient moving across Viking and Fair Isle. Occasional strong winds in Fair Isle Monday evening spreading to all areas north of 57N Monday night. Winds moderating Tuesday morning. Strong to gale force winds spreading east across Fair Isle Wednesday night and Thursday

Niton

On Monday evening low pressure, 947, is slow moving west of Iceland with high pressure, 1030, west of sea area Fitzroy. At the same time a frontal trough lies north to south along the east coast of the UK. Low pressure remains slow moving over southern Europe and the Mediterranean throughout the period. Through Tuesday high pressure will build and move slowly northeast with the frontal trough weakening and losing its identity over the North Sea. High pressure 1031 will be centred Scotland midday Wednesday and in north North Sea midnight. Also through Wednesday low pressure in the Atlantic becomes complex, with an increased pressure gradient moving across northwestern Niton areas. Risk of occasional strong winds far south of Fitzroy Monday evening also in Plymouth, Biscay, Sole, Lundy, Fasnet Tuesday morning moderating all areas Tuesday afternoon. Strong to gale force winds spread southeast across Shannon Wednesday night continuing Thursday. Strong winds returning southern Fitzroy Thursday afternoon

Portpatrick

On Monday evening low pressure, 947, is slow moving west of Iceland with a frontal trough lying north to south down east coast of UK. While high pressure lies west of Fitzroy and over Scandinavia. On Monday night and Tuesday high pressure 1033 to the south builds, centred sea area Shannon by Tuesday night, with frontal trough becoming slow moving in North Sea and losing its identity. Through Wednesday high pressure 1031 migrates northeast, centred over Scotland midday and North Sea midnight, and low pressure in the Atlantic becomes complex, with an increased pressure gradient moving across northwest Portpatrick areas Through Wednesday and Thursday. Strong winds north of 54N Monday evening gradually moderating Tuesday morning. Occasional strong winds Lundy, Fastnet Tuesday morning ease Tuesday afternoon. Strong winds or gales arrive Shannon, Rockall, Bailey, Southeast Iceland Wednesday morning, perhaps severe gales far north, spread southeastwards to Malin, Hebrides, Fair Isle, Faeroes overnight and Thursday morning