Thunderstorm in Totana flying the Rans s12

At 13.00h big Cb clouds stared to building up. I had a appointment with Manuel At 1700h. To give him a flying lesson. When we arrived  at the airfield, it was cristal clear weather  on the south  direction, but  to the nord it was black and thunders where clear to hear. There was  a15 knot full cross wind, and we desided to practice touch and go's. manuel did a good job and did some pritty nice landings. here is the video result of  our flight.