Jumping Sundogs Over Thunderclouds

I was pool side in my apartment in Singapore, when I saw something weird in the skies. As I looked over head I saw some weird cloud shoots of light and puff as the clouds seemed to reform sporadically. I could see that a storm cloud was building, but the light and visual show was intriguing me. So I grabbed my iPhone and recorded this :)

Jumping Sundogs Over Thunderclouds
Image Credit: abrigatti, YouTube Explanation: What's happening above those clouds? In the past few years, videos have appeared on the web detailing an unusual but little known phenomenon: rapid light changes over clouds. Upon inspection and contemplation, a leading hypothesis for its cause has now emerged. In sum, this hypothesis holds that a lightning discharge in a thundercloud can temporarily change the electric field above the cloud where charged ice crystals were reflecting sunlight. The new electric field quickly re-orients the geometric crystals to a new orientation that reflects sunlight differently. In other words, a lightning discharge can cause a sundog to jump. Soon, the old electric field may be restored, causing the ice crystals to return to their original orientation. To help this curious phenomenon become better studied, sky enthusiasts with similar jumping or dancing sundog videos are encouraged to share them.