Bob CollinsIt’s been a long time since Lake Superior has completely frozen, but it’s getting close.
Here’s today’s satellite photo.
A little closer view reveals the recalcitrant sections:
It’s the north shore, specifically the area around Two Harbors, Minn., Grand Marais, Minn., and the water south of Isle Royale. The rest of it is locked up tight this afternoon.
- MPR News’ Updraft blog: Polar vortex winter: Lake Superior nearly frozen over a month early
In 1994, 94 percent of the lake was frozen. That’s a record that may fall in the next few days. This morning, 89 percent of the lake was ice covered. The thickest ice — about 20 inches — is southeast of Isle Royale.
