Forecasters warn an extreme winter storm could trigger rare “exploding trees” across the Upper Midwest as temperatures plunge below zero, causing sap inside trees to freeze and crack bark. The storm is expected to bring widespread snow,

The internet is buzzing with talk of “exploding trees.” While it makes for a snappy headline, meteorologist Brendan Johnson explains why it’s just more misleading clickbait.

Experts say it’s extremely rare, but not completely unheard of.

While the Wisconsin DNR says ‘exploding’ may be an exaggeration, there is a risk for frost cracking. That happens when the sap inside a tree gets below freezing, and expands.