Iridescent clouds? Photos of odd, fiery cloud formations circulate on Facebook 144 '); The photos were initially posted by youth group Youth for Mindoro. “Nakunan ng mga netizens sa Mansalay, Oriental Mindoro ang di maipaliwanag na kaganapan sa isang ulap nitong hapon ng Miyerkules, April 14, 2021. Ayon sa mga mga nakakita, isang misteryong liwanag ang nabuo sa itaas ng ulap,” the post read. The photos showed scenic white clouds with mysterious fire-like features on top, resembling an explosion in the sky or a volcanic eruption from far away. These were later re-posted by a weather forecasting page called the Philippine Weather System/Pacific Storm Update, which has over one million followers.