Minneapolis, Minnesota – Residents across Minnesota should be prepared for sudden loud cracks or booming sounds Friday as persistent Arctic cold renews the risk of the “exploding tree” phenomenon, especially during the coldest morning hours.
According to the National Weather Service, deeply cold air remains locked over the region Friday, with subzero temperatures and dangerous wind chills creating prime conditions for frost cracking. This occurs when sap inside trees freezes and expands rapidly while the outer wood contracts, building pressure that can cause trunks to split abruptly with a sharp, explosive sound.
The highest risk Friday morning stretches across northern and central Minnesota, including Bemidji, Brainerd, Duluth, and St. Cloud, where prolonged cold continues to stress mature trees. The Twin Cities metro is not immune, particularly in older neighborhoods with large hardwoods, where isolated cracking may occur near daybreak.
While exploding trees are uncommon, splitting trunks and falling limbs can damage vehicles, sidewalks, roofs, and power lines. Residents are advised to avoid standing beneath large trees during extreme cold and to park vehicles away from tree-lined streets when possible.
The same cold driving tree stress also raises the risk of frostbite on exposed skin within minutes, frozen pipes, and vehicle issues. Officials urge limiting outdoor exposure Friday, wearing insulated layers, covering all exposed skin, and keeping pets indoors. Cold-related warnings and advisories remain in effect, with additional updates possible if conditions persist or intensify.
