Flying somewhere between Beijing and Shanghai, we encountered a very active weatherfront with beautiful and very active thunderstorms.

The cloud here seen on our left started to appear on our weather radar only a few minutes before and started to show off an amazing display of lightning that grew ever more intense. When we got closer, we saw that the cloud was going to burst through our flight path and we had to deviate up to 10km to avoid flying into this cell. Growing with a speed of up to 5000/6000ft per minute (1,5-2km per minute) straight up into the air, this was certainly a hazard to our airplane if we didnt fly around her. 
The beauty of nightflights in Asia this time of the year.