Low 981 hPa centered on Wales rising in a stationary position.
For La Tranche-sur-Mer :
Warning moderate gale offshore.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable becoming very cloudy in the afternoon. Light showers all day. In the evening, good clear periods but lots of cloud, too.
No precipitation. SW force 4 turning WNW force 5 in the middle of the day then becoming force 4. Gusts reaching 26 knots in the middle of the day. Moderate sea becoming rough in the middle of the day. Moderate, long swell from W. Excellent visibility.