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  • If you've ever heard a sonic boom, you know that they're extremely loud. How do sonic booms form and why are they so ear piercing? We'll explain.
  • What Causes Snow Pellets? Snow pellets, also known as graupel, form when supercooled water droplets freeze on a falling snowflake or ice crystal. As more droplets collect and freeze, they form a small, soft ball of ice. While snow pellets may seem like small hail, they're different. Unlike hail, snow pellets freeze into fragile, oblong shapes and usually break apart when they hit the ground.