During a winter storm, snowflakes and sleet pellets high in the clouds can collide. Those collisions create the same static charges as in a summer thunderstorm. With enough static charge ...

NASA's Aqua satellite provided an infrared look at Tropical Storm Conson's thunderstorm cloud-top temperatures on July 14 at 1747 UTC (1:47 p.m. EDT) and found 2 large areas of strong convection ...