High 1028 hPa centered on the Celtic Sea remaining almost stationary.
For Concarneau :
No gale warning.
We are 65% sure of the situation, because the high pressure system could move in more quickly than forecast.
Cloudy spells, dense at times in the morning, very cloudy with possibility of thunder storms in the afternoon. Possibility of showers late in the morning, showers late in the day. In the evening, very cloudy with risk of storms.
Showers. ENE force 3 turning ESE in the middle of the day then NNE. Gusts reaching 17 knots in the morning. Smooth sea. Low, short swell from S. Excellent visibility becoming poor in the evening.