A northeasterly, weak and very variable flow prevails over the East of the basin. Over the West, it is southerly, strong and very variable.
For Noirmoutier-en-l"Île :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies very cloudy to overcast in the morning, good clear periods with lots of cloud in the afternoon. Some showers in the morning, possibility of a few spots in the afternoon. In the evening, good clear periods but lots of cloud, too.
Possibility of showers NE force 3 in the morning becoming force 2 in the evening. Gusts reaching 12 knots in the morning. Smooth to slight sea. Low, fairly long swell from W. Visibility reduced by fog becoming good in the middle of the day then poor.