High 1023 hPa centered on West Channel moving at 6 knots to the South-East to be centered on the North of the Bay of Biscay.
For Grève de Traou Treiz :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable to very cloudy. No precipitation. In the evening, good clear periods but lots of cloud, too.
No precipitation. SW force 3 in the morning becoming force 4 in the middle of the day. Gusts reaching 25 knots from the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from W. Excellent visibility.