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February 8-10 Snow Event


Hoosier

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Well for one, neither the storm today/tonight nor the 4th-5th storm manage to really amplify and bomb out enough to completely work over the atmosphere, as they both simply get sheared off to the NE too quickly.

 

For two, look how far northward this ridge builds northward. You're talking an absolute stream of moisture with the orientation of those height contours. 

 

 

 

Thats one of the deepest ridge's I've seen all winter.

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Not gonna lie it would be a bit frustrating to somewhat neuter an H5 trough like the GFS is showing with the lack of meaningful leeside cyclogenesis given the antecedent pattern, I'm fairly sure we'd be seeing some serious bombs/blizzards if there wasn't so much suppression as a result of the HP in wake of the Feb 4th/5th system.

 

To see some of the solutions even with that proceeding pattern that the GEFS are offering speaks to how potentially strong this upper level system could be.

 

And yes if it seems like I'm leaning towards tracking some severe weather, I am.  B)

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18z GFS is a perfect example why it's almost impossible for the YYZ-DTW corridor to get a major 18" type snowfall. You have a closed H5 system with a perfect track for +SN, but at the surface, everything is peeling away towards the EC baroclinic zone.

 

I wonder if PDII is a good analog?  That west to east bowler that blew up on the coast.

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18z GFS is a perfect example why it's almost impossible for the YYZ-DTW corridor to get a major 18" type snowfall. You have a closed H5 system with a perfect track for +SN, but at the surface, everything is peeling away towards the EC baroclinic zone.

 

Well there's that, and then there's the storms like 2/26/13 (1.5" of QPF with half of it falling as 33*F/34*F rain).

 

http://www.meteo.psu.edu/~fxg1/NARR/2013/us0226.php

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18z GFS is a perfect example why it's almost impossible for the YYZ-DTW corridor to get a major 18" type snowfall. You have a closed H5 system with a perfect track for +SN, but at the surface, everything is peeling away towards the EC baroclinic zone.

Ud Think a low would be strong enough to where it wouldn't transfer to the east. Always wondered why some transfer and some don't...
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I technically does but a lot of that QPF after 180 is some sort of post-truncation plotting error with the GFS. Toggle between 177 and 180 and watch how the precipitation just inexplicably explodes. In reality, sfc low off NJ coast is not going to dump on us.

So if this run were to verify, how much would we get? 8-10"?

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Not true. A huge majority fell as snow, it was the most inefficient accumulating snow ever.

 

You sure?

 

I'm showing (per DTW's QPF reports on Weather Underground) that at least 0.76" of the total 1.6" in QPF fell as rain, maybe more as there's a period where there was a sloppy mix of rain/sleet/snow. 

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I technically does but a lot of that QPF after 180 is some sort of post-truncation plotting error with the GFS. Toggle between 177 and 180 and watch how the precipitation just inexplicably explodes. In reality, sfc low off NJ coast is not going to dump on us.

take a look at where the mid-level centers are...the heavy precip is in the correct location with that set-up...

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