Low 1002 hPa centered at 130 nautical miles in the West-North-West of Cabo Carvoeiro (Portugal) moving at 24 knots to the East-North-East and rising to 1008 hPa to be centered on the South-East of the Bay of Biscay.
For Saint-Denis-d"Oléron :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Storms in the early hours. Showers. In the evening, cloud and long sunny periods.
Chance of light rain. E force 3 in the middle of the day turning S in the evening. Gusts reaching 22 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from WNW. Excellent visibility becoming poor in the evening.