Thanks for posting those photos and videos. We are doing a supercell climatology in Spain. This year's one is
here, where in the first post, one of the truly masters in the subject, explains the criteria for the consideration or not. Then, people post for any suspect they think is a supercell with all the stuff possible: radar images, photos, vídeos, damages...So, if you want to contribute to our next 2013 (or 2014, 2015...) thread, we appreciate it so much