The tower land was not included in the sale last year of WMID (referenced in this STA request from November):
So the "what gives" is something that is happening more and more often. The real estate is worth more than a tower site is.
There was also a post several days ago from someone in a near panic over it:
Does anyone know why WHAT AM 1340 is off the air? When I tuned in today I found them off the air. Also how come now with WHAT off the air, how come I could not get WMID from Atlantic City. Does it have anything to do with the new tower WMID is on? Is there a reason why WMID's 890 what signal...
radiodiscussions.com
No idea about WMGM. No STAs on file.