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Jan 20th snow event


Thundersnow12

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  On 1/18/2012 at 3:22 PM, Chicago WX said:

That's my call. Hoosier hates it though. :lol:

It's a nail biter. Moving one grid point north/south on the twisterdata soundings makes the difference between a sufficient cold layer for zr or not. Not that I'm rooting for zr. :whistle:

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  On 1/18/2012 at 3:59 PM, Mottster said:

Why on earth would he want ice? Just because it's some wintry? :blink:

They guy likes mixed events. Eh, it'll be a light event anyway...and if the NAM is right :lol:, it melts off fairly quickly.

12z GFS looks nice for I-80 north. Steady wins the race.

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  On 1/18/2012 at 4:12 PM, Chicago WX said:

Compare, contrast.

I guess it's not shocking that the NAM would be that wet given how strong the WAA is on that run . Either way if the GGEM and Euro maintain the consistency that the GFS is starting to show, i'll be severly discounting the NAM in my afternoon first call.

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  On 1/18/2012 at 4:19 PM, gosaints said:

la crosse talked about a January 2008 storm in their discussion. That was the coolest fluff storm I had ever seen. I think I ended up with 40:1 ratios. That storm was not this moist though.

Ratios will be extreme especially on the northern fringe, which is part of the reason why I think 12" is in play for someone...right now i'm favoring Southern Wisconsin.

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  On 1/18/2012 at 4:22 PM, wisconsinwx said:

So, at least in terms of the GL, the NAM loves S Wisconsin, the GFS loves N Illinois, and the 0z Euro loved both. Who will win out?

Looking at the entire model picture (9z SREF spreads, GFS, NAM, last nights Euro and GGEM), within 20-30 miles either side of the WI/IL border is looking best right now.

FWIW a closer look at the GFS precip, some .50 popping up in I-80 land.

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