|That band of blue in Southern IL|
and IA tells a fascinating story.
So tonight, things are relatively mediocre throughout the state, as high pressure has moved in and pushed away any winds with it. Though light migration is occurring right now in response to the lack of headwind, this isn't what steals the show. What steals the show is a tiny and weak low pressure system in Southern IL and IA, which is bringing a fascinating migratory response (see below).
Looking in what has repeatedly been a depressing wind forecast, it looks like the theme will be retained until Tuesday evening. At that point, it appears that another front will be passing in Illinois from northwest of us. Until then, expect migration to be occurring in light increments until southerly headwinds take over some time tomorrow afternoon.
Good stuff. That low pressure system was pretty exciting.