Weekend Surf Forecast for 19th - 21st May.

Report Date: Friday 19 May 2017

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Summary

Smallish and lumpy but consistent at west and northwest exposures

Best bet

Spain

Synopsis at 00:00 UTC

Today’s chart shows very little action, with a weak low about 800 miles northwest of the Azores, another weak system just northwest of Scotland and relatively high pressure over the Azores. The situation remains almost the same until Sunday when a slightly deeper system forms near Newfoundland. The upper airstream is weak and broken up, and local pressure gradients moderate.
NAO index (large positive values usually mean potentially good surf): +5 mb

Area forecasts

Southwest Wales

Friday:
Small, average-quality swell, up to about three feet at exposed spots, hampered in many places by moderate becoming fresh westerly winds

Saturday:
The swell deteriorates in quality and becomes dominated by windseas generated by fresh west-southwest winds; wave heights up to about three feet

Sunday:
Continuing smallish and ragged, around three feet or so, with windseas generated by fresh southerly winds, perhaps gusting strong for a while

North Devon and Cornwall

Friday:
Average-quality swell, up to about four feet at exposed spots in the west, hampered in many places by moderate gusting fresh westerly winds

Saturday:
The swell deteriorates and becomes dominated by windseas, around three or four feet at exposed spots, with fresh westerly winds, backing southwest later

Sunday:
A new swell arrives, about three or four feet at exposed spots and of average quality, with fresh southerly winds, backing southeast late afternoon

South Coast of England

Friday:
Small swell reaching west and southwest exposures, up to about two feet, mixed with windseas generated by moderate perhaps fresh southwest winds

Saturday:
Winds increase to fresh gusting strong southwest, and wave heights are a lumpy two or three feet on average

Sunday:
Very small or flat in many places, with some tiny windseas produced by moderate southerly winds, veering southeast later and gusting fresh

East coast of England

Friday:
Very small or flat practically everywhere, with light northeast winds

Saturday:
Continuing very small or flat, with light then moderate or fresh southerly winds

Sunday:
A small north swell arrives, perhaps up to two or three feet at northerly exposures, with moderate southerly winds, gusting fresh later

North Coast of Scotland

Friday:
Small, west and northwest swells mixed, up to three feet or so at exposed swell-magnets, with moderate east-southeast winds, gusting fresh later

Saturday:
The north swell dominates and wave heights remain small, around two or three feet, with light variable winds then moderate southerlies late afternoon

Sunday:
The swell drops, perhaps up to two feet at swell magnets, but pretty flat in most other places, with moderate gusting fresh southerly winds

Northwest Ireland

Friday:
Small, average-quality swell, up to about four feet at westerly exposures, smaller elsewhere, with light to moderate southwest winds veering west later

Saturday:
The swell deteriorates and swings more northwest in direction, up to three or four feet at exposed spots, hampered by fresh westerly winds

Sunday:
A more lined-up swell arrives from the west, around three or four feet, with fresh gusting strong southerly winds

Southwest Ireland

Friday:
Average to poor quality swell, around four or five feet on average, with persistent fresh westerly winds

Saturday:
The swell continues, with mixed west and northwest components and windseas generated by fresh westerly winds; wave heights around four or five feet

Sunday:
A more lined-up swell arrives from the west, mixing with the existing swell and windsea; up to six feet at southwest exposures, with fresh to strong southerly winds

Southwest France

Friday:
Mixed swell and windsea, around five or six feet and lumpy with fresh westerly winds

Saturday:
Peaky residual swell, around five feet or so, with moderate southwest winds at first becoming light northwest later

Sunday:
The swell drops to around three feet, but conditions improve with moderate east or southeast winds, decreasing later

North coast of Spain – east of Gijón

Friday:
Poor-quality swell and windseas, up to five or six feet at exposed spots with fresh gusting strong west-northwest winds

Saturday:
Lumpy residual swell, around five or six feet at first, dropping gradually, with light southwest winds veering north then northeast by late afternoon

Sunday:
Wave heights drop to around three feet or so, but conditions become cleaner, with light to moderate southeast winds

North coast of Spain – west of Gijón

Friday:
Mixed swell and windseas, up to five or six feet at exposed spots, with fresh southwest winds quickly veering west then northwest by late afternoon

Saturday:
The swell continues, around five feet at first, dropping later, with windless conditions at first becoming moderate northeast later

Sunday:
The swell becomes more lined up, around four feet or so at exposed spots, with windless conditions at first then light perhaps moderate northerlies later

Northwest Galicia

Friday:
Average quality northwest swell, perhaps exceeding six feet at the most exposed spots, with moderate perhaps fresh northwest winds

Saturday:
The swell drops to around four feet or so on average by afternoon, and winds change to light northeast, increasing fresh by afternoon

Sunday:
A more lined up swell arrives from the west-northwest, around four feet or so, with light northerly winds at first becoming moderate northwest later

*Portugal – north of Lisbon *

Friday:
Lumpy northwest swell, up to five or six feet at exposed spots, accompanied by persistent fresh to strong northerly winds

Saturday:
Residual swell, around five feet or so, with moderate northeast winds at first backing north and increasing fresh or strong later

Sunday:
A more lined up swell arrives, up to four or five feet at exposed spots, with windless conditions at first, gradually picking up to fresh northwest by late afternoon

Portugal – south of Lisbon

Friday:
Average quality northwest swell and windseas, around four feet or so, with fresh winds from a northerly quarter

Saturday:
The swell cleans up a bit, around three or four feet at northwest exposures, with moderate northeast winds at first becoming fresh northwest later

Sunday:
A more lined-up swell arrives from the west, mixing with the existing swell, around three or four feet, with light northwest winds at first, becoming fresh later