|Tonight's surface analysis is the most important part of this report; that|
high pressure system over Lake Huron will be defining our winds for the
next few days.
So tonight, as predicted, the winds have become predominantly easterly in direction, with a very very slight northerly twang to it. This wind shift has resulted from the movement of a high pressure into the east; Illinois happens to be in the portion of its influence (clockwise rotating winds) where winds are coming from the east. Unfortunately, as the high pressure system seems to be moving southward, the prairie state will be experiencing unfavorable southerly winds by tomorrow morning. These southerly winds are forecast to continue at least through Wednesday, so migration will a be a little strained if not delayed the next few days.
Tonight, though the radar in NE IL is still down, it appears that we are experiencing light to moderate migration right now, which is headed predominantly southwest with tonight's winds. This will probably be the last night we see this scale of movement for the next few days, so I guess it's time to get personal with the migrants in your local patch! As you well know, these migrants could be an number of hummingbirds, flycatchers, thrushes, vireos, kinglets, warblers, cardinalids, or warblers. Also, as the vagrancy part of fall migration is really starting to set in, keep your eyes peeled for any weird birds. They could turn out to be the best kind of weird.
Cheers and happy birding.