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December 20-21 storm threat


illinois

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Interesting battle between the GFS and Euro.  Euro has been pretty consistent in a more compact/southerly track.  Would probably lay down a decent strip of snow from southern IL up into parts of Ohio.  GFS insists snow will fall much further north, but amounts are pretty light across the swath of accumulation.  I haven't even looked at the GEM lately, but apparently it's a suppressed non-event for everyone. 

 

Gonna be interesting to see what rolls in with today's models.

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GGEM gets something going on the 12z run.  It's not good but a step up from what it had before.

At hour 66 on the 12z Pgfs it looks like a storm is going to get going then it fizzles. It flattens the ridge just enough that the next low coming out of Mexico ends up tracking further south of most of us in this subforum...

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The UKMET appears to like the idea of more consolidated piece of energy ejecting out of the southwest, and it has a solution that would be interesting for the upper Ohio Valley and maybe into the eastern Great Lakes. The Canadian trended this direction but wasn't quite as far north. If the 12z Euro comes in with a similar solution to what it's shown or maybe ticks north it would essentially be foreign vs GFS, and we know how that normally goes. But we are still a few days away.

 

post-525-0-28166500-1418665192_thumb.gif

 

post-525-0-17673500-1418665217_thumb.gif

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Yeah.  Kinda like watching the long pass in football with anticipation of a huge catch, only to find that the ball was way under thrown.  

 

 

it's more like watching a doomed screen

 

this never had big event potential

 

looks like a minor hit for the far southern portions of this subforum

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Despite the op run, the 12z Euro ensemble mean is a tick farther northwest with the primary low before a transfer to the east coast.

 

Just saw the 12z runs.   Crazy jumping around,  I also checked the euro ensembles, you are correct, the mean looks exactly like the 12zukmet you posted.   I have seen the euro do this sudden shift southeast with eastern storms in this time range in the past.   Still could be right though.  

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