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Pancake ice Rolls Over Waves on Lake Michigan
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CHICAGO, February 29, 2024 – A mesmerizing display of nature unfolded on Lake Michigan as drone footage revealed formations of “pancake ice” tumbling across the waterS surface. The unusual sight, captured on February 28, has sparked curiosity and wonder among those witnessing the rare phenomenon. What is pancake ice, and why does it form? Pancake ice is created when supercooled water-water cooled below its freezing point without actually turning to ice-experiences turbulence.
Rare Conditions Create Stunning Visuals
The unusual formations are a result of specific weather conditions on the Great Lakes.
- Pancake ice forms in supercooled water with turbulence.
- The formations are typically circular, resembling pancakes.
- The phenomenon is relatively rare, requiring specific weather conditions.
- Drone footage captured the rolling formations on Lake Michigan.
The captivating video shows numerous circular disks of ice, ranging in size, gently rolling with the waves. These formations, aptly named “pancake ice,” are a relatively uncommon sight, requiring a specific combination of frigid temperatures, calm waters, and a slight breeze. According to experts, the ice initially forms as small slushy crystals, which then collide and freeze together, gradually developing their distinctive circular shape.
How Supercooled Water Plays a Role
The process begins with water that is cooled below its freezing point-a state known as being supercooled-but hasn’t yet solidified into ice. Small disturbances, like waves or currents, then trigger the formation of ice crystals. These crystals then bump into each othre, creating rounded edges and eventually forming the pancake-like shapes. The size of the pancakes can vary depending on the intensity of the turbulence and the duration of the freezing process.
