PETOSKEY — For the first time in about 20 years, Lake Michigan is experiencing an alewife die-off, something that occurred seasonally 20-60 years ago, but has been rare over the last two decades.

LIVE. 12 NEWS INVESTIGAT.ES SOMETHING SMELLS FISHY ALONG MILWAUKEE’S LAKEFRONT. DEAD FISH ARE LINING MILWAEEUK BEACHES. THE EXACT REASON FOR THE DIE-OFF IS UNCLEAR. 12 NEWS’ KENT WAINSCOTT IS LEIV AT ...