I don't mean to sound like I'm being rude, but perhaps it was a shipping freighter? Seems the most logical explanation, and being in the open water with lights on, I'm sure it looks much brighter than it really is.
I saw this too and it was perceptively moving northward... also at about 11pm. Originally thought it was perhaps a barge way out there as I sometimes see, but it was moving too quickly/noticeably too close to shore to be a barge, though I didn't notice any obvious police lights on it.
It was at the same time I noticed a police SUV driving out onto the pier and had just driven past an ambulance and a ton of cop cards on Pratt between Sheridan and Lakewood. Not sure if they are related. But definitely lots of activity on Pratt tonight.
David Axelrod was hosting a pre-inauguration party. We just got back home after the water taxi dropped some of us off back at Farwell Pier. The big donors are being picked up by Coast Guard helicopters and flown back for an after-party on the Gold Coast. It will be on the morning news.
Against the Grain, that site is SWEET! I grew-up on the Iron Range of Minnesota and my oldest brother worked on the ore boats out of Duluth for several summers in the late-60's/early-70's. I've always wanted a way to track the commercial lake traffic around here, thanks!
Unconfirmed report - it was a Panamanian-registered destroyer owned by the Republican Party. They are setting up a floating command center in preparation for an all out assault on Rogers Park and the 9th Congressional District in 2014. Using highly advanced invisibility cloaking technology it can disappear at will.