Low 989 hPa centered at 190 nautical miles in the South of Fastnet Rock (South-West Ireland) moving at 33 knots to the East-North-East and dropping to 977 hPa to be centered on East Channel.
For Marennes :
Warning whole gale offshore.
The reliability of the situation is assessed at 80%.
Very cloudy with risk of thunderstorms in the morning, skies clearing but storms likely in the afternoon. Some light showers in the morning, possibility of showers in the afternoon. In the evening, good clear periods but cloud building.
Showers towards the end of the night. W force 8 in the morning weakening force 6 in the evening. Gusts reaching 59 knots in the morning. Smooth to slight sea becoming smooth in the evening. Low, short swell from SW. Excellent visibility.