Summer smoke from Canadian wildfires is once again hazing out Minnesota skies — just in time for your long-awaited Northwoods vacation. Not the pristine, fresh pine-forest air you were hoping for. “It’s not really better or worse up here than the Twin Cities right now,

Another round of smoky air will cover the vast majority of Minnesota through Friday, the state Pollution Control Agency warned in an alert issued Wednesday afternoon. The alert, which was expanded on Thursday to include southeast Minnesota, is in effect until 11 p.m. Friday, July 25.