Answer:
First, you have to find the main idea (Which is "Thundersnow is dangerous")
Then, you have to find the supporting details, which is what the question is asking for
I believe these are the details:
-When it comes to lightning risk, a thunderstorm of snow, or thundersnow, is no different from a thunderstorm of rain.
-Thunder signifies the presence of lightning, so even if you don't see any lightning flashes, it's crucial to seek safe shelter in order to avoid being struck.
-In addition, thundersnow often involves heavy snowfall and enormous ice pellets, creating even more safety risks
I hope this helps and is correct! Good luck!