Low 1000 hPa centered at 100 nautical miles in the South-West of Fastnet Rock (South-West Ireland) moving at 5 knots to the South and dropping to 995 hPa.
For Dune du Pilat :
No gale warning.
We are 90% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Overcast skies. Showers all day. In the evening, very cloudy skies to overcast.
Chance of light rain. WNW force 4 in the morning weakening WSW force 2 in the evening. Gusts reaching 23 knots in the morning. Slight sea becoming moderate in the evening. Low, short swell from W then moderate, fairly long swell in the evening. Excellent visibility.