High 1028 hPa centered on Switzerland remaining almost stationary.
For Calais :
No gale warning.
The reliability of the situation is assessed at 90%.
For the night from Thursday to Friday SSW force 2 in the early part of the night turning SSE. Gusts reaching 10 knots in the early part of the night.
Smooth to slight sea becoming smooth in the middle of the night. Low, short swell from W. Poor visibility becoming poor at the end of the night. Daytime of Friday 19 september : The weather will be good.
Changeable skies becoming fairly cloud-free in the morning, sunny in the afternoon. No precipitation. In the evening, fair weather with mostly clear skies.
SSE force 3 turning SSW in the middle of the day then SW. Gusts reaching 16 knots in the middle of the day. Smooth sea. Low, short swell from WSW. Poor visibility becoming excellent in the middle of the day then good.