A northeasterly, weak and particularly variable flow prevails over the West of the basin. Over the East, it is northwesterly, weak and very variable.
For Port st clair :
No gale warning.
For the night from Wednesday to Thursday NNW force 1 in the early part of the night becoming N force 2. Gusts reaching 9 knots all night.
Slight sea becoming smooth in the middle of the night. Low, short swell from WSW then from N in the middle of the night. Excellent visibility. Daytime of Thursday 20 august : The weather will be good.
Sunny despite some cloudy spells but no rain. In the evening, cloudy spells, sometimes dense.
Chance of light rain. N force 2 turning SSE in the middle of the day then SSW. Gusts reaching 10 knots from the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low from N. Excellent visibility.