A northwesterly and particularly variable flow prevails over the whole area.
For Le-Pouliguen :
No gale warning.
For the night from Thursday to Friday N wind force 3 continuing all night. Gusts reaching 19 knots in the early part of the night.
Slight sea becoming smooth to slight in the middle of the night. Low, short swell from W. Excellent visibility becoming excellent at the end of the night. Daytime of Friday 21 august : The atmosphere will remain unstable.
Good clear periods alternating with cloudy spells, rather dense in the morning. Light showers all day. In the evening, cloudy spells, sometimes dense.
No precipitation. NNE force 3 turning WNW 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.