High 1017 hPa centered on Switzerland remaining almost stationary.
For Ambleteuse :
Warning fresh gale offshore.
The reliability of the situation is assessed at 80%.
Skies very cloudy, becoming totally overcast during the morning, storms developing in the afternoon. Some light showers in the morning, showers with possibility of hail in the afternoon. In the evening, very cloudy with risk of storms.
Possibility of showers S force 6 becoming SSW force 7 in the middle of the day then SW force 6. Gusts reaching 45 knots in the middle of the day. Moderate sea. Low, fairly long swell from W. Excellent visibility.