High 1030 hPa centered at 100 nautical miles in the South-South-East of Fastnet Rock (South-West Ireland) moving at 7 knots to the East-North-East to be centered on the Celtic Sea.
For Pornichet :
No gale warning.
The reliability of the situation is assessed at 95%.
Fair weather with mostly clear skies. In the evening, relatively cloudless skies clearing.
ENE force 2 turning NW in the middle of the day then NNW force 3. Gusts reaching 15 knots in the morning. Smooth sea. Low, short swell from SW. Excellent visibility.