A school bus passes an ice disk Tuesday that floats at the Great Eddy of the Kennebec River off U.S. Route 2 in Skowhegan.

An ice disk floats Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.

A truck passes an ice disk that floats Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.

From the porch of Mark Nickerson's home, a truck passes an ice disk that floats Tuesday at the Great Eddy of the Kennebec River off Route 2 in Skowhegan. Nickerson said it's the first time he's seen an ice disk in the 25 years he has lived in the home.

An ice disk floats Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.

An ice disk forms layers as it floats Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.

An ice disk floats Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.

From the porch of Mark Nickerson's home, an ice disk can be seen floating Tuesday at the Great Eddy of the Kennebec River off Route 2 in Skowhegan. Nickerson said it's the first time he's seen an ice disk in the 25 years he has lived at the home.

An ice disk floats Tuesday at the Great Eddy of the Kennebec River off Route 2 in Skowhegan.

A truck passes an ice disk floating Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.

Traffic passes an ice disk that floats Tuesday at the eddy of the Kennebec River off Route 2 in Skowhegan.