After weeks of dry, warm weather, Ontario was hit with a dramatic turn on Sunday night, as heavy storms and lightning lit up the skies across the province. The clouds, which often mark the leading edge of a thunderstorm, can appear to rotate along a horizontal axis. One shot, shared on X, shows lighting sparking up the sky, while another shows a massive cloud formation looming over a residential neighbourhood. One video, shared by meteorologist Anthony Farnell, shows just how fierce the system was as it swept through the sky. There is also a risk of thunderstorms on Tuesday and Wednesday, as well as soaking rain on Thursday.