This is some real nice SN, big flakes stacking up -- grass should be covered shortly. A little surprised how fast that transition to snow went being just 4 miles from the lake.
Yeah its all rain and slush here in the loop area. About to make the drive to Deerfield, curious if they’re the same since it’s also a few miles from the lake (although a bit north of the city).
See below post, good info for the mechanics of the rain to snow transition (for Urbana-Champaign but applicable to most areas): https://x.com/vortexjeff/status/1744480403405050115?s=46
Liking the trends so far, a slightly weaker low would produce a more spread the wealth situation in N IL it seems. As long as we can avoid rain here in Chicago, I'll be happy (famous last words).
Downtown chicago here… beating a dead horse but would much rather be on the northern fringe than the southern fringe of the defo axis for this one, especially with the warm lake. This one’s either gonna be nothing or a nice 5-6” imo.
Clouds thinning out already in loop area. I usually have no faith in strong severe after atmosphere mixing and stabilization this late in the day, but will be interested to see if SPC/forecast models are onto something.
Seems like SPC either doesnt like far NE IL for sig. wind/tornadoes or is deliberately trying to avoid showing the moderate risk over the lake
And with NE storm motion (not SE) the boundaries seem a bit confusing to me.