Extended Outlook Forecast
1800 UTC Wed 22 May until 1800 UTC Sat 25 May
Issued by the Met Office, on behalf of the Maritime and Coastguard Agency, at 202300 UTC
Portpatrick
Throughout the period a ridge of high pressure builds across the area, extending from a large anticyclone over the Atlantic. Meanwhile from Wednesday evening a low, 993, is centred over Denmark. Overnight the low moves northwestwards, becoming centred over southern Norway by midday Thursday, 997, bringing a strengthening flow to eastern parts. Through Friday the low fills and tracks down the western North Sea, moving into France later in the afternoon as high pressure again builds across the whole of Niton. Friday another weak low pressure system develops to the west of Iceland, remaining in a similar position through to Saturday. Wednesday strong northwesterly winds and gales affect all areas north of 55 north. Through Thursday winds strengthen across most of Portpatrick to Strong mainly northerly winds or gales, excluding Shannon and west of 13 west. By midday Friday, strong winds become confined to Lundy, Fastnet and Irish Sea, easing to non-hazardous levels everywhere by Friday evening
Cullercoats
Throughout much of the forecast period a ridge of high pressure builds across the west of Cullercoats, extending from a large anticyclone over the Atlantic southwest of the UK. Meanwhile from Wednesday evening a low, 993, is centred over Denmark. Overnight the low moves northwestwards, becoming centred over southern Norway by midday Thursday, 997. Through Friday the low fills and tracks down the western North Sea, moving into France later in the afternoon as high pressure again builds across the area. Saturday is dominated by ridge conditions extending from the anticyclone centred to the southwest of Fitzroy. Wednesday strong northwesterly winds and gales affect most of Cullercoats, excluding Thames, Dover and Wight. By midday Thursday strong northerly winds are generally restricted to the northwest of Cullercoats. Winds ease to non-hazardous levels by mid- morning on Friday. Strong northwesterly winds affect eastern parts of Cullercoats through Saturday afternoon, especially German Bight
Niton
Throughout the period a ridge of high pressure builds across the area, extending from a large anticyclone over the Atlantic. Meanwhile from Wednesday evening a low, 993, is centred over Denmark. Overnight the low moves northwestwards, becoming centred over southern Norway by midday Thursday, 997, bringing a strengthening flow to eastern parts. Through Friday the low fills and tracks down the western North Sea, moving into France later in the afternoon as high pressure again builds across the whole of Niton. Wednesday evening strong northerly winds affect parts of Fitzroy, elsewhere winds are expected to be moderate or less. Through Thursday winds strengthen across most of Niton to Strong mainly northwesterly winds, nearing gales in Fitzroy and Irish Sea. Through Friday morning strong winds continue to affect all parts, with gales possible over Fitzroy, Lundy, Fastnet and Irish Sea. Friday evening strong winds become confined to south of 49 north. By midday Saturday winds across Niton become non-hazardous
