Tonight, Illinois is experiencing the same avian migration trend as yesterday. Southerly winds over northern Illinois are grounding birds over the northern two thirds of the state while northerly winds in southern Illinois is creating some light movement in the far southern third of the state, as seen on the current national composite radar: (http://tempest.aos.wisc.edu/radar/us3comp.gif)
This wind and resulting migration pattern, looking at various local forecasts, should also occur tomorrow night.
In summary, it would of course be worth birding tomorrow to see all of the migrants that are currently stuck in much of the state since they will be gone in due time; however, there shouldn't be much evidence of turnover tomorrow morning.
Liz Day Shorebird Forecast: Not much new in this department.
To predict exactly which species you are likely to find and when, please consult:
BirdCast's regional migration forecast for this week: http://birdcast.info/forecast/regional-migration-forecast-18-25-september-2015/
-and-
eBird's Illinois species occurrence chart: http://ebird.org/ebird/GuideMe?src=changeDate&getLocations=states&states=US-IL&parentState=US-IL&reportType=location&monthRadio=on&bMonth=08&eMonth=11&bYear=1900&eYear=2015&continue.x=63&continue.y=9&continue=Continue
Good birding,
Henry (Oak Park, Cook County)
trumpetswan@comcast.net
ilmigration.blogspot.com
worldbirding.travellerspoint.com
sites.google.com/site/opbirdwalks/
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