Michigan’s ‘Exploding Trees’—Hype or Hazard? A Clare County Close-Up

By MEGAN BARRON

Cleaver Guest Writer

HARRISON – We’ve all seen those dramatic weather terms light up headlines during big events: El Niño, a real Pacific pattern tracked for centuries that seems to explain every odd season; polar vortex, a longstanding atmospheric swirl that became everyone’s favorite scapegoat during the 2014 deep freezes; and bomb cyclone, a scientific label for rapidly intensifying storms that gained fame in the late 2010s for epic snow events.

While they may sound like hyped up catch phrases, they are genuine meteorological terms that get amplified when conditions turn extreme, turning forecasts into viral stories. The latest? Regional coverage of “exploding trees” as last weekend’s Arctic blast settled over Michigan.

After a few good hardy laughs and some mutually shared memes and reels with friends, I had to investigate: Is this another quirky yet methodically real term? Or just fuel for memes, mild panic or late-night laughs depending on your news diet?

Spoiler: No trees are detonating like action movie props loaded with Tannerite. No winter fireworks show in the forest. But yes, something real – and occasionally loud – is happening in the woods during brutal cold snaps like the one gripping Michigan right now.

The phenomenon is frost cracking, sometimes called frost splitting or sunscald cracks. It happens when temperatures swing sharply: On clear winter days, low angled sunlight hits the south or southwest side of the tree trunk the hardest, warming the bark and thawing any frozen sap or inner tissues, which expand like a balloon filling with air. Then, as night falls and temperatures plummet sharply (like the current Arctic blast dropping us into sub-zero range), the outer bark cools and contracts faster than the warmer insides can adjust. The mismatch creates intense pressure, leading to a vertical split, often with a sharp pop or bang that echoes like a distant gunshot or firecracker.

Local experts, including our Clare County Conservation District Forester, Mike Dittenber, confirm it’s no myth, but it is far from apocalyptic. In Clare County, frost cracks show up most often on non-native ornamental trees with thin bark, such as Norway maples. Dittenber notes it is most common on lakefront properties with open southern exposure. These cracks typically get noticed in spring, rather than during the freeze itself, with the splits becoming more evident after the thaw, when bark peels or wounds become visible.

“If you live on the north shore of a lake, or otherwise have ornamental, thin-barked trees with southern sun exposure, frost cracking will be very likely,” Dittenber noted. “Otherwise, it’s much less prevalent.” And while the conservation district hasn’t fielded any recent calls regarding frost cracking, the risk is real for vulnerable trees as cracks create entry points for insects, fungi, bacteria and decay, potentially shortening a tree’s life if it’s already stressed.

The good news is that most healthy trees handle it well. “Having frost cracking doesn’t mean the tree is going to die,” Dittenber explains. “An otherwise healthy tree should be able to compartmentalize the wound and keep growing.”

The best long-term fix Dittenber recommends is to plant native trees with thicker bark and better cold adaptations.

“Some of our native trees that are most cold tolerant and have the most northerly distribution in North America include: tamarack, black and white spruces, balsam poplar, trembling aspen, and jack pine,” Dittenber explained. “A few adaptations used by some of these trees to survive cold climates include having thick bark, antifreeze properties, having a conical shape to reduce snow load, and having wide but shallow root systems to obtain nutrients despite living in areas where permafrost may be very close to the soil surface.”

For existing yard trees (especially young or thin-barked ones like maples, oaks, walnuts, fruit trees or recently planted ornamentals) it is recommended to wrap trunks from the ground to the first main branches with a breathable material that blocks direct sunlight. The Clare County Conservation District’s forestry page stresses this as key prevention, noting that “not only us humans need winter coats, some of our trees do too!”

The recent and upcoming sub-zero freezes could prompt a few cracks if sunny days precede sharp drops, but the conservation district has been reassuring that it is rarely catastrophic, with more splits than spectacles.

For a practical next step, check the Clare Conservation District’s 2026 Annual Spring Native Sale which is now open with catalogs mailed and the webstore live. It’s the perfect time to grab resilient natives (trees, shrubs, wildflowers, and grasses) that handle our winters better. Visit clarecd.org for details and orders.

So, while popping sounds may echo from time to time throughout Michigan’s woods during the upcoming sub-zero temperatures, rest assured, “exploding trees” is a term that may stick around for the laughter, not the science. It’s no official term, but a jaunty reminder to plant natives and wrap those tree trunks before the next cold snap hits.