High 1026 hPa centered at 170 nautical miles in the West of Fastnet Rock (South-West Ireland) moving at 11 knots to the South-South-East.
For La Tranche-sur-Mer :
No gale warning.
The reliability of the situation is limited.
For the night from Saturday to Sunday NNW force 2 in the early part of the night turning NNE. Gusts reaching 16 knots in the middle of the night.
Smooth to slight sea temporarily smooth in the middle of the night. Low, short swell from WSW. Excellent visibility becoming good at the end of the night. Daytime of Sunday 16 august : The sky will remain changeable.
Skies changeable to very cloudy. Risk of some spots of rain in the morning, no precipitation in the afternoon. In the evening, changeable skies becoming less cloudy.
No precipitation. NNE force 2 turning WNW force 3 in the middle of the day then NW. Gusts reaching 17 knots in the evening. Smooth to slight sea. Low, short swell from WNW. Good visibility becoming excellent in the middle of the day.