Low 1008 hPa centered on the North of the Bay of Biscay moving at 9 knots to the West and rising to 1012 hPa to be centered at 220 nautical miles in the North-West of Cape Ortegal (Spain).
For Port-Blanc :
No gale warning.
We are 80% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Skies progressively clouding over with storms forming. Showers towards the end of the night. In the evening, very cloudy with risk of storms.
Light showers progressively becoming less frequent. ESE wind force 3 from the middle of the day. Gusts reaching 18 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from NW. Excellent visibility becoming good in the evening.