(WJW) — Just when we thought winter was over, it’s back again.

Some of the viewing area will get lake effect snow overnight into Tuesday. Parts of the snow belt have the chance of three inches or more.

So, you may be wondering: What are the chances of a snow day?

We’ve got a handy little tool to help predict if your district just might get the day off.

It’s the Snow Day Calculator.

All you need is your zip code.

The calculator was created by a student at MIT and works with the National Weather Service. It all starts with your zip code.