A northerly and variable flow prevails over the South and the East of the basin. Over the North-West, it is westerly, weak and particularly variable.
For Trévignon :
No gale warning.
The reliability of the situation is poor.
For the night from Wednesday to Thursday NW force 3 in the early part of the night turning N. Gusts reaching 18 knots in the early part of the night.
Smooth to slight sea. Low, short swell from WSW. Excellent visibility. Daytime of Thursday 22 may : The largely blue sky won.t last.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, cloudy spells, sometimes dense.
Chance of light rain. N wind force 3 continuing all day. Gusts reaching 22 knots in the evening. Smooth to slight sea. Low, short swell from WSW. Excellent visibility.