Dec 6-7th (It's not a clipper) Clipper

[Chicago Storm]

something is afoot.

[A-L-E-K]

Call looking solid, maybe a tad light.

[Mogget]

I have awakened to a WWA for 3-6 inches tonight.  I am reminded that clipper by any other name will still drop sweet snow.

[hawkeye_wx]

The 00z models were north, but the overnight and morning trend has been back south.

[Baum]

Ground zero to start winter this year. It’s been a minute or 11 years.

[ChiTownSnow]

RAP all the way.. 

[hawkeye_wx]

The RRFS from 00z to 12z.

[cyclone77]

Always nice to have the windshield wiper effect on the models 12hrs before the first flakes.  

[hawkeye_wx]

5 minutes ago, cyclone77 said:

Always nice to have the windshield wiper effect on the models 12hrs before the first flakes.  

The globals have been much more stable (and south) than the CAMs.

[Harry Perry]

These clipper not clippers don’t like Lake Michigan for some reason. 

[cyclone77]

13 minutes ago, hawkeye_wx said:

The globals have been much more stable (and south) than the CAMs.

Very true.

[Chicago Storm]

The globals have been much more stable (and south) than the CAMs.

i wouldn’t say that.

the globals had a sizable shift north, and now with the decent shift south of the cams. essentially converging on a solution.

[mannynyc]

Pack is starting to melt so I'm just hopeful for a nice refresher. Would be very happy with three solid inches.

[KeenerWx]

Meh, on southern fringe so not expecting much. Hope it overperforms for those further north, though!

[hawkeye_wx]

6 minutes ago, mannynyc said:

Pack is starting to melt so I'm just hopeful for a nice refresher. Would be very happy with three solid inches.

Our 11" shrunk by half pretty quickly.

[ChiTownSnow]

1 minute ago, hawkeye_wx said:

Our 11" shrunk by half pretty quickly.

All while consistently below freezing.. melting from ground up thankfully had stopped

[migratingwx]

Nice little event shaping up.

 

[ChiTownSnow]

11 minutes ago, ChiTownSnow said:

All while consistently below freezing.. melting from ground up thankfully has stopped

 

[Chicago Storm]

All while consistently below freezing.. melting from ground up thankfully had stopped

It’s still melting from ground up.

Soil temps are in the mid 30’s still, with the snow insulating the ground from the cold.

[Paulie21]

Pretty much all models hinting at a nice corridor of higher UVVs for northern IL tonight between 850mb - 750mb. Not perfectly co-located with the small area of DGZ but not bad at all for a couple hours of 1"+/hr rates perhaps. 

Not perfectly textbook case but looks like theta-e lines in the cross section are more spaced out and climbing. Perhaps some slantwise convection possible? Not a perfect setup but it does coincide with best LRs (saturated) in the sounding, strong speed shear above veering wind profile, AND weak absolute vorticity. Could really thump right before dawn.

[frostfern]

4 hours ago, Harry Perry said:

These clipper not clippers don’t like Lake Michigan for some reason. 

Summer is invading winter.  What happened to lake effect?