7 things to know about hail

It’s the one frozen precipitation that can occur in the middle of a summer heat wave: Hail. Here’s a list of seven facts you may not know about those little (or maybe not so little) pellets of ice:

What is a snow squall?

You may have gotten one of those loud mobile alerts telling you about something called a "snow squall." So what the heck is it and why is it so dangerous? Glad you asked.