Exploding Trees? Michigan’s Deep Freeze Could Trigger a Rare Winter Phenomenon

I’ve lived in Michigan most of my life, but there is an apparent rare phenomenon that could happen as this weekend’s deep freeze hits.

According to MLive, as Arctic air pours into the state, daytime highs are expected to stay stuck in the single digits Friday through Sunday, with wind chills plunging well below zero. In parts of the Upper Peninsula, temperatures may not even climb above zero, and wind chills could dip to an eye-watering 40 degrees below.

And with that kind of cold comes one of winter’s strangest headlines, exploding trees. Yes, exploding trees.

What Are Frost Cracks and Why They Sound Like Gunshots

It sounds apocalyptic, and while it’s not likely for most of us, there’s actually some fascinating science behind the claim. What usually happens is something called a frost crack. When temperatures drop rapidly, a tree’s bark shrinks faster than the inner wood. That imbalance can cause the trunk to split, sometimes with a loud bang that really does sound like a gunshot.

Thin-barked trees, especially maples, are the most vulnerable. And in rare, extreme cases, things can go even further. When sap freezes at sub-zero temperatures, it expands, building pressure inside the trunk. If that pressure becomes too much, the tree can crack violently, breaking off limbs or even split apart.

Where Exploding Trees Are Most Likely in Michigan

For a true ‘tree explosion,’ temperatures generally need to fall to around 20 below zero. Could Michigan get there this weekend? Maybe, but only in the coldest parts of the state like the Upper Peninsula or interior northern Lower Michigan.

So while most trees will be just fine, the idea that the cold alone can make a tree snap apart is a powerful reminder of what Mother Nature is capable of.