A northerly, moderate and mostly variable flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, moderate and mostly variable.
For Porsay :
No gale warning.
The reliability of the situation is good.
In the evening, very cloudy skies clearing completely.
No precipitation. ENE wind force 3. Gusts reaching 15 knots in the evening. Smooth to slight sea. Low, short swell from NNE. Poor visibility.