As some of you may be aware, I live in MKE, about 30 miles north to be exact. While outside washing my car this evening around 17:30, I saw a string of commercial jets flying quite lower than normal over the house, all with headings generally anywhere from north to east. I was able to identify some type of MD-80 (probably YX) passing twice in the same direction (possibly in a holding pattern), or else I saw two different MD-80s. About ten minutes later, a FedEx A300 (I don't believe it was a 767) made a very broad 180-degree right banking turn from the north to the south. The FX aircraft was followed by a Frontier 733 and then a NW DC-9 (in the new livery, I have to mention). Although I can not give a good estimate of their actual altitudes, all the planes were low enough for me to identify the aircraft type and airline by using my primitive Sears binoculars.
Normally air traffic is only present this far from the airport during bad weather, especially when it's foggy or raining, and whenever I see an aircraft in these weather conditions, I have never seen any other airliners routed this far north. The weather conditions were certainly ideal, and I can not think of any reason for any delays at MKE or even ORD, if the a/c were diversions (which is unlikely in my opinon).
Anyone know why these planes would have been so far north this evening? I've been itching to find out any possible explanations. Thanks!