Operating from the North end with a slight crosswind from the east. Windspeed around 10-15 kts. A good bunch from UWE so the Ka7, one ASK13 and one PW6 were out. Day started with lowish cloud, around 700 feet, but it lifted nicely and the sun came out until at 15:20 it started to rain. It looked set-in, but in fact we were on the edge of a thunderstorm, which we could hear, and after about 40 minutes it has passed us by so that launching continued until the end of day. Worth getting out of bed for.