Weekend Surf Forecast. May12th - 14th

Report Date: Friday 05 May 2017

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Summary

Small almost everywhere, except perhaps the far south

Best bet

Portugal

Synopsis at 00:00 UTC
Today’s chart shows a typical blocking pattern in the North Atlantic, with a large and powerful high pressure system in the north and a weak cut-off low in the south. The situation persists for at least the next few days, with the cut-off low drifting around just north of the Azores and strengthening slightly, perhaps generating some west swell for southern areas. The upper airstream is weak and way to the north, and local pressure gradients are strong in places with a predominant easterly flow.
NAO index (large positive values usually mean potentially good surf): -25 mb

Area forecasts

Southwest Wales

Friday:
Very small or flat in most places, with strong easterly winds

Saturday:
Continuing very small or flat in most places, with fresh to strong easterly winds at first, becoming moderate east-southeast later

Sunday:
Winds drop to almost nothing, with light northerlies later, and a small southwest swell appears, perhaps reaching three feet at the most exposed swell-magnets

North Devon and Cornwall

Friday:
A small swell first thing drops to almost nothing by afternoon, with strong easterly winds perhaps gusting gale-force at exposed spots

Saturday:
Very small or flat in most places, with fresh east-southeast winds decreasing later

Sunday:
A small southwest swell arrives, up to three feet or so at southwest exposures, smaller elsewhere, with light northerly winds

South Coast of England

Friday:
Short-period east swell, driven by fresh to strong easterly winds; up to three or four feet at exposed spots and very lumpy

Saturday:
The east swell continues in the morning but drops to two feet or less by afternoon, with fresh gusting strong east-northeast winds, decreasing later

Sunday:
The east swell disappears and a small southwest swell reaches exposed spots in the west of the area, up to two feet or so, with light westerly winds

East coast of England

Friday:
Small north swell mixed with local windseas generated by fresh east-northeast winds; wave heights around three or four feet and lumpy

Saturday:
The lumpy swell continues, dropping to below three feet at many spots, with moderate gusting fresh northeast winds

Sunday:
Very small or flat in many spots, with some small, very poor quality windseas at northerly exposures, generated by fresh northerly winds

North Coast of Scotland

Friday:
Very small or flat in most places, with moderate east-northeast winds

Saturday:
Continuing mostly very small or flat, with moderate northeast winds

Sunday:
A poor-quality north-northeast swell, picking up to about three feet later at exposed spots, but with lumpy conditions in fresh north-northeast winds

Northwest Ireland

Friday:
Small west swell, perhaps reaching two feet at extreme westerly exposures at first, but dropping to nothing later, with strong easterly winds

Saturday:
Very small or flat in most places, with fresh to strong easterly winds

Sunday:
Continuing very small or flat, with windless conditions or light south-easterlies

Southwest Ireland

Friday:
Small west swell, around two feet or so at exposed spots, struggling against strong easterly winds, perhaps gusting gale force at first

Saturday:
Very small or flat in most places, with fresh to strong easterly winds

Sunday:
A small southwest swell arrives, up to three feet or so at extreme southwest exposures, smaller elsewhere, with light winds from a southerly quarter

Southwest France

Friday:
Small west swell, perhaps exceeding three feet around Hossegor and further north, with moderate easterly winds, but perhaps strong westerlies for a while later

Saturday:
The small swell continues, struggling to exceed three feet in most places, with light westerly winds at first, and light northerlies later

Sunday:
The swell drops to below three feet everywhere, with light easterly winds early morning, then moderate perhaps fresh northerlies later

North coast of Spain – east of Gijón

Friday:
Small west swell, perhaps up to three feet at westerly exposures, smaller elsewhere, with moderate to fresh southeast winds, swinging west late afternoon

Saturday:
The swell drops below three feet practically everywhere, with light southerly winds at first, picking up to moderate then fresh northeast later

Sunday:
The small swell continues, around two feet at westerly exposures, flat in many other places, with light easterly winds then moderate to fresh northeast

North coast of Spain – west of Gijón

Friday:
Small west-northwest swell mixed with shorter-period northeast, averaging around three feet, with light winds from a westerly quarter, perhaps gusting moderate

Saturday:
Wave heights drop below three feet practically everywhere, and winds are fresh southwest at first, dropping later then picking up from the northeast

Sunday:
Continuing small and weak, struggling to reach three feet at most spots, with light easterly winds at first becoming fresh northeast later

Northwest Galicia

Friday:
Average-quality west swell mixed with shorter-period southwest, up to five feet or so at first, dropping later, with fresh to strong south-southwest winds

Saturday:
The swell remains mixed and wave heights drop to around three or four feet on average, with fresh gusting strong south-southwest winds

Sunday:
The swell becomes more organized, around three or four feet at exposed spots, with windless conditions at first then moderate perhaps fresh northerlies later

Portugal – north of Lisbon

Friday:
Good-quality west swell mixed with a shorter-period southwest component, up to six feet at exposed spots at first, with fresh southwest winds, gusting strong at first

Saturday:
The swell weakens and remains quite mixed, around four or five feet at exposed spots, with moderate to fresh southwest winds

Sunday:
The swell drops again but becomes a bit more organized, around four feet or so, with windless conditions at first then moderate to fresh northerlies later

Portugal – south of Lisbon

Friday:
Good-quality west swell, up to six or seven feet at exposed spots, but hampered in many places by persistent fresh southwest winds

Saturday:
The swell weakens and becomes less lined-up, around four or five feet at exposed spots, with light southwest winds at first becoming moderate westerlies later

Sunday:
The swell drops another notch, but is slightly better lined-up, around four feet or so, with windless conditions early morning then moderate to fresh westerlies later