Heavy rain
Somebody’s emotional support animal broke loose?
Likely high crosswinds and poor visibility. Common to be put on a holding pattern.
Stacking aircraft in holding patterns for sequencing to land due to weather conditions/active runway/multiple aircraft arriving simultaneously.
Normal operations.
My son was flying back from Columbus, OH last summer and I was going to pick him up at Midway. The plane should never have taken off, because there was a huge and strong storm covering all of Indiana. I watched it on Flight Aware. You should have seen the convoluted path they flew waiting to get around the storm. They were even in Michigan for a while and I thought maybe they were headed to Detroit. After all that flying around, they didn’t have enough fuel to make it to Chicago and went back to Columbus.
Want something really interesting? A Belgian military Dassault Falcon 7x flew from Brussels to Fort Worth Meacham on Saturday starting at 430Am Brussels and arriving at 3:30 pm Texas time... mostly at 349 knots.
Today, looking a military flights the same call sign 00-LUM, is on the way back way north of newfoundland and above Iceland on it’s course.
What the hell would a Belgian military high officer carrier be doing for one overnight in Fort Worth?
Here’s the current ADS-B track now at 41K feet and 507 knots rapidly coming just south of Erie, PA along the lake. Interestig for the speed and altitude and that it is a Belgian military (not NATO btw).
https://globe.adsbexchange.com/?icao=44b2ad
The Belgian plane is BAF87 so named id’d on Flight Radar right now.