The City of Evanston this morning issued a warning to visitors to the lakefront urging them to walk only on the sandy beach and not on the ice extending out into the lake.
The lakefront now has significant areas of shelf ice on Lee Street Beach and South Boulevard Beach, with some sections of shelf ice at other public beaches.
Shelf ice is formed by waves pushing ice against the beach. It is very dangerous to walk upon because the ice is not attached to the bottom of the lake, but only to the shore.
The ice may appear stable, but it is floating on water. Cracks, thin ice or holes may be hidden by drifted snow. Anyone who ventures onto shelf ice could easily fall through and rescue is nearly impossible.