A southwesterly, very strong and variable flow prevails over the whole area.
For Pornichet :
No gale warning.
We are 90% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
Good clear periods but lots of cloud, too. No precipitation. In the evening, good clear periods but cloud building.
No precipitation. SSE wind force 4 from the middle of the day. Gusts reaching 24 knots in the evening. Moderate sea. Moderate, fairly long swell from WSW. Excellent visibility.