AAL219 (11May2016) Reason for diversion?

Just curious. Has anyone been aware of this flight originating LAX scheduled to ORD diverted on ORD approach, circling RFD twice and then sent to IND? Time frame 0600 to 0700 5/11/2016. Thanks.

Fog was REALLY bad Wednesday AM in the Chicago area. KMDW had zero viz when I got up at 6am. Wouldn’t be surprised if KIND was the alternate and they needed gas. They had that long line of weather to go around, too so perhaps they just ate into their reserve.