High 1022 hPa centered on Switzerland remaining almost stationary.Low 1000 hPa centered on the center of the North Sea moving at 12 knots to the West to be centered on the North of the Irish Sea.
For Calais :
Warning moderate gale offshore.
The reliability of the situation is assessed at 80%.
For the night from Sunday to Monday SW force 4 becoming force 5 in the middle of the night then WSW. Gusts reaching 33 knots at the end of the night.
Slight sea. Low, short swell from WNW. Excellent visibility. Daytime of Monday 31 august : The atmosphere will be very unstable in the early part of the day.
Warning: intensely active electrical storms in the morning, changeable skies becoming relatively cloud-free in the afternoon. Warning: violent showers with hail in the morning, possibility of showers in the afternoon. In the evening, skies becoming partly cloudy from the early hours.
No precipitation. WSW wind force 6 continuing all day. Gusts reaching 35 knots in the middle of the day. Moderate sea. Low, fairly long swell from WSW. Excellent visibility.
