For a little while this morning I was on the significant train, but watching how things have evolved the past few hours this morning, I’ve quickly exited the train a while ago. The environment is fairly good overall, with… Ample moisture, ample instability, a disturbance moving through, a quality plume of higher lapse rates and some clear skies for heating. However, as noted by an expanding low level cloud shield ahead of the line, there is a stable layer in place. This, in part with a few other things (such as lagging shear), is limiting intensification. So instead right now we have a weaker line of t’storms moving east, with outflow racing out ahead. Maybe it’ll change in a few hours, but by then it might be too late for the Chicago area.