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 ...

With severe cold hitting much of the country, some unusual phenomena like "exploding trees" could be on the way. Here's what to know.

Exploding trees are loud cracking noises produced by the splitting of trees under extreme cold or other stresses. Exploding trees are mostly caused by freezing sap. No official "exploding tree" code ...