Just looking at midlevels, it seems like if an eastern mesoscale low doesn't form, everyone west of the river just competely pounds. We can see that in the name, which would have been a completely crunching if not for a 6 hour periods of chasing convection. My question is, and maybe it's a dumb question: what about the upper air would suggest that the western low regains primacy after the eastern low has been favored? Especially when before the eastern low was favored in the first place, our LP was further west. It seems like an intra-run 6 hour hiccup, but all the models seem to show it to varying degrees. Why?