[maxerickson]

Maybe wrong interpretation of lake ice.

The Upper Peninsula of Michigan is often the victim of mapping oversights.

[nslocum]

Maybe, but the map error is too large. There would have to be 20+ miles of ice from the shoreline. And why isn't there ice anywhere else?

[maxerickson]

Nothing unusual about high ice cover there.

https://www.glerl.noaa.gov/data/ice/historicalAnim/

[nslocum]

that's awesome, thanks for sharing.

It's amazing how much variability there is between years