Low 981 hPa centered on the Celtic Sea moving at 12 knots to the North-East and rising to 994 hPa to be centered on the North of the Irish Sea.
For Plage de Portrieux :
No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Predominantly sunny in the morning, increasing sunny spells in the afternoon. No precipitation. In the evening, cloud and long sunny periods.
No precipitation. SW force 3 becoming force 4 in the middle of the day then SSW force 2. Gusts reaching 19 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from N. Excellent visibility becoming poor in the evening.