Jan 25, 2021
ABC News - On Valentine's weekend in 2015, winter storm Neptune pummeled Boston. Weather Channel meteorologist Jim Cantore was outside reporting on the blizzard when a sudden purple flash illuminated the sky. "Oh yes! We got it baby!" he yelled, repeatedly leaping in the air. The "it" was thundersnow -- the relatively rare, sometimes unnerving, sometimes thrilling appearance of lightning and thunder during a snowstorm.