A southwesterly, strong and very variable flow prevails over the whole area.
For Saint-Cast :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Good clear periods but cloud building. No precipitation. In the evening, very cloudy.
No precipitation. WSW wind force 3 from the middle of the day. Gusts reaching 19 knots in the middle of the day. Slight sea. Low, long swell from NW. Excellent visibility becoming poor in the evening.