When there's strong enough convection, along with plenty of moisture, a winter storm can produce thundersnow. During a winter storm, snowflakes and sleet pellets high in the clouds can collide.

The Weather Channel itself has a good explanation for why thundersnow is so rare and ... Fahrenheit), conditions are favorable for both snowflakes and small hailstones (called graupel) to form.

Thundersnow and thundersleet are pretty rare ... Snow and a wintry mix have developed across the region. Even "hamster-size" snowflakes were reported at the National Weather Service Office ...

LAKE MICHIGAN – Winter weather can create all kinds of wonders on a lake, including thundersnow, seiches, frostflowers, steam devils and ice spikes, to name a few. Even the names are amazing if ...