A northwesterly, very strong and variable flow prevails over the whole area.
For Biscarrosse :
Warning strong gale offshore.
We are 80% sure of the situation, because the winds may be stronger than forecast.
Very cloudy skies to overcast. Showers all day. In the evening, very cloudy skies to overcast.
Light showers progressively becoming less frequent. W force 8 in the morning becoming WNW force 7 in the evening. Gusts reaching 62 knots in the middle of the day. Very rough to high sea. Moderate, fairly long swell from WNW then low from N in the middle of the day then high, fairly long swell from WNW. Good visibility becoming excellent in the middle of the day.