Received a response from the USCG. They confirmed the outage for Wisconsin Pt & my times, and they also stated they didn't post the notice. However, they did not see an outage for St Paul and when they checked it was fine.
St Paul showed up here at Apr 04, 2017 UTC 12:04:37 (their email was sent around 14:00 UTC, so if they checked shortly before that, then it was indeed operational).