McGowan cleared waivers and was outrighted to Triple-A New Orleans on Thursday, Joe Capozzi of the Palm Beach Post reports.
EDGE Analysis
McGowan, who didn't allow a run in five of his six appearances for the Marlins this season, will remain with the organization after passing through waivers unclaimed. He'll pitch at Triple-A New Orleans for now, with the goal of earning a callup back to the Marlins later in the year.