For Alton Water Reservoir : Warning moderate gale.
The reliability of the situation is assessed at 90%.
Sunny, changeable at times in the afternoon. No precipitation in the morning, possibility of showers in late afternoon.
In the evening, clear skies. W force 8 weakening force 6 in the middle of the day then WSW force 4. Gusts reaching 55 knots in the morning. Excellent visibility.