Low 997 hPa centered at 110 nautical miles in the West of Fastnet Rock (South-West Ireland) moving at 19 knots to the East-South-East and dropping to 993 hPa to be centered on the Celtic Sea.
For Saint-Brevin-Les-Pins :
Warning moderate gale offshore.
We are 80% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will end.
For the night from Saturday to Sunday S force 4 becoming force 5 in the middle of the night then SW. Gusts reaching 32 knots in the middle of the night.
Smooth to slight sea becoming slight in the middle of the night. Low, short swell from WSW. Excellent visibility. Daytime of Sunday 20 july : The unstable weather will die away during the day.
Skies clearing but with risk of storms in the morning, sun and storm clouds in the afternoon. Showers will become less frequent from the morning. In the evening, storms developing.
Showers. WSW wind force 5 continuing all day. Gusts reaching 32 knots in the evening. Slight sea. Low, fairly long swell from S. Excellent visibility.