Only goes to 90hrs, but aloft would suggest it would end up potential south of 12z. More ridging ahead of the closing off wave, however like the GFS, the northern stream is pressing in more across Canada. .
I'd disagree overall.
Fairly solid agreement on a swath of at least 3-6" across portions of IA/WI/IL/MI.
South end of it, yea still a question. Will depend on how strong WAA is, with this wave lacking any significant SLP.
That's the down side. The lead wave still has snow potential, but this second potentially main wave is now later on.
Good news is that most of the players should be on land by Monday night.
you know it.
the week leading into christmas through a few days after new years is just about the only period i'll root for just about any sort of accumulation. outside of that, pass unless it's 6" or much greater.
GEM throws another new scenario on the table. Lead wave ejects out as a glorified overrunning/frontal event, followed by a delayed ejection of the 2nd wave not until Thur/Fri, as a very wrapped up/occluded system...over DSM by Fri morning. .
Ukie has a solution of its own. Northern stream misses, so southern wave ejects out late and well south. Main snows are actually overrunning/frontal. .