'Exploding Tree' Warning From Subzero Cold Snap Reaches Into Wyoming

A subzero snap of winter temperatures is expected to hammer the Midwest and reach into northeast Wyoming starting Friday. That’s led to a surge of warnings for people to watch out for “exploding trees.”

That’s not something someone just made up, even if it’s a bit of an exaggeration. Extreme cold can cause trees to explode, and it’s likely to take many people by surprise when it happens.

“It can make you jump if you’re not expecting it,” said Shane Smith, former director of the Cheyenne Botanic Gardens. “It's pretty rare, but it does happen and could happen across a lot of the country as this Arctic front moves in.”