High 1027 hPa centered at 150 nautical miles in the West-South-West of the Île de Sein moving at 14 knots to the North-East and gaining strength to 1030 hPa to be centered off Breton Cape.
For Plage de Riez :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Changeable skies becoming fairly cloud-free in the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
NE wind force 3 continuing all day. Gusts reaching 15 knots from the middle of the day. Smooth to slight sea. Low, fairly long swell from WSW. Visibility reduced by fog becoming excellent in the middle of the day.