A northeasterly, moderate and variable flow prevails over the West of the basin. Over the East, it is northwesterly, very strong and very variable.
For Porsay :
No gale warning.
The reliability of the situation is very good.
Warm sun all day. In the evening, clear skies.
SSW force 2 turning NE force 3 in the middle of the day then SSE force 2. Gusts reaching 14 knots in the middle of the day. Smooth to slight sea. Low, short swell from NW. Excellent visibility becoming good in the evening.