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Pre-Christmas Winter Storm Potential


Chicago Storm

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I'm chill, just cognizant of the fact that this is the period where trends start to iron themselves out, and the previously suppressed GFSE are now mostly amped.

 

 

 

meh, plenty of the 0z/6z members had a similar warm look and the 12z are all over the map. I wouldn't read too much into it. The only noteworthy element of the 12z GFS is that it appears much more organized at the upper levels and I think is going to start coming in wetter as we move forward.

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850 temps, for Sunday, 12z

gfsCGP_850_temp_120.gif

Also, depicting the low, right overhead. Gee, if that doesn't spell sloppy mess, I don't know what does. So, precip type is going to be a big concern here. Surface temps are marginal at 30-35, maybe higher, maybe lower, but this would be, at this point, one of those situations, if it verifies, where temps will fluctuate a degree or two on either side of freezing, and precipitation if it is all snow, will be heavy and wet, or will flip between snow, and snow/rain mix. . the 850's are colder, over more of the NE IL area, so what that will spell is anyone's guess.

For some odd reason, I simply can't grasp the fact that it could be 50+ degrees here in lower Michigan Saturday night/Sunday. When yesterdays low was -7 and 10" of snowpack. 30's and rain? Yeah I could see that, but not 50.

Also, let's not forget how the models will jump back and forth between warm/cold... Further north/further south... Especially 4-5 days out. Still lots of time for flip flops, but the Euro being consistent 4 runs? I don't see things changing much on track of this system.

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Freezing rain possibilities starting to look more likely for YYZ. GGEM has over and inch ZR while the GFS is supporting with about 0.75". With the cold air poised to flood in after this system, I'd expect some pretty serious pre-Christmas impacts in this area if this is to play out.

 

Not sure about the EURO, if anyone has text output for YYZ that'd be great.

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