For Alton Water Reservoir : No gale warning.
The reliability of the situation is good.
Skies changeable becoming cloudier in late morning. No precipitation.
In the evening, cloudy and humid with a risk of fog. Drizzle in the early hours. WSW force 5 becoming force 4 in the middle of the day then SW. Gusts reaching 30 knots in the middle of the day. Excellent visibility becoming reduced by mist in the evening.