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Christmas Grinch Storm Potential


Chicago Storm

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Powerball is technically right about it being more rain than not (especially the farther east you go), but that would still be a nice hit of snow after it changes over.

 

Now it is still possible with this system (in some areas) that we can rely on wet bulbing to cool the above freezing temps enough for mostly snow, as the temps aren't THAT warm. 

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Which is does in a big "Sioux City" way..

 

As the trof/wave eject into the plains it kind of wants to shear itself out/have the wave run quickly NE along the baroclinic zone. 

 

 

Looks like it's sub 990 mb over Lake Superior at 216 hours.

 

Active period...going to be a tough stretch for NWP.

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I approve very very very much of the Euro

 

Agreed. The euro has been very consistent in dropping the PNA even further into negative territory after the bomb, as it does so a ridge develops just behind the 1st storm helping to push it along. As it flattens the ridge on the NW side it strengthens the ridge in the SE.  If its right with the deeper -PNA I believe that somewhere along and north of I-80 with see major snows with the second wave, I like north of I-90 better but a bit south is possible as well.

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Anyone have QPF? at least for KDTW?

Well, here it goes. The 00z ECWMF brings back the goods for Toledo and Detroit, similar look to the Blizzard of 78, that is, without the super cold air.

 

I think the QPF for Detroit is about 1.46", some of it rain

 

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post-1182-0-37249900-1418977963_thumb.pn

 

post-1182-0-48907500-1418977962_thumb.pn

 

post-1182-0-61811200-1418977961_thumb.pn

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