Educational Resources: When thunder and lightning occur but the main form of precipitation is snow, not rain, it’s called thundersnow.
Lightning, meet snowstorm: The makings of thundersnow
Thundersnow heard throughout to metro Detroit: Here's how it happens
Introduction to Static Electricity
Concept Definition Web
Winter lightning, severe storms and thundersnow :: Can lightning occur in the winter or when it is snowing? Lightning FAQ
Explainer: What is thundersnow?
孩子问「为什么下雨的时候会打雷,而下雪的时候就不打雷呢?」,如何
孩子问「为什么下雨的时候会打雷,而下雪的时候就不打雷呢?」,如何
Science behind thundersnow and the recent wild Spokane weather
Yes, that was thundersnow. And it's rare.