A westerly, very strong and variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
Warning moderate gale offshore.
The reliability of the situation is fairly good.
For the night from Friday to Saturday SSE force 1 in the early part of the night becoming S force 2. Gusts reaching 8 knots at the end of the night.
Slight sea. Low, fairly long swell from W. Poor visibility becoming reduced by mist in the middle of the night. Daytime of Saturday 20 december : The weather will become more uncertain during the day.
Very cloudy skies. Becoming more changeable for a time in the morning. No precipitation in the morning, drizzle in late afternoon. In the evening, very cloudy skies becoming totally overcast.
Light rain getting progressively heavier. S force 3 in the morning freshening force 5 in the middle of the day. Gusts reaching 27 knots from the middle of the day. Slight sea becoming moderate in the middle of the day. Low, fairly long swell from W. Visibility reduced by mist becoming excellent in the middle of the day.