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February 12-13 Storm: Title TBD


stormtracker

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There is ALWAYS a heavy band just NW of the supposed cutoff line.

In this case, that will be due to grid scale error or small modeling error in track. What you're thinking of is in the strong frontogen/omega in snow growth zone situations, but models key in on low level dry winning. In reality, the dendrite machine ends up winning.

If you are on the right side of the mid level deformation zone, you'll get buried in a Miller A.

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Man Richmond gets pummeled on the NAM.. guarantee he is hugging the NAM... 

Yup... "** ALERT *** ALERT ** HOLY mackel ALERT...  from around 6" or 8" of snow that goes over to rain .... to something like 20 inches or more of snow."

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yikes -- i think the general takeaway here that we got a great axis of qpf -- how that axis orients itself really relies on some unresolved subtleties in phase timing/tilt timing and orientation 

 

Yea, not to mention the nam appears to be perfectly designed to mess with peoples heads beyond 48 or so. I do like the track but it's foolish to take this run above the euro and ens for now. Euro ens are almost unanimous in 1"+ liquid for all of us. I checked the member output. It's a uniform shellacking for all. P type aside, look at the op and ens members and then add in the relative short lead and it's hard to think it won't mostly verify in some fashion. 

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This.

 

I lived in central VA for 10 years, from 2001-11.  This is the sort of track we'd see 48-60 hours out.  Yet in rare Miller A, amping up coastals, very rarely did we see the max snowfall centered over central/south-central VA...it ends up being farther n-nw or closer to the coast.  I cannot think of 12-24" events (are there even any?) where the I95 areas in central VA made out better than areas w-nw-n.  I think thermal profiles aloft (uvv's in the dendritic growth zone and thus snowfall rates) have had a lot to do with that.

 

This is accurate. CVA/RIC always get the 48 hour porn, only to watch it move 75-100 miles NW.

 

Just the way it is down here. It's why I moved 20 miles NW of RIC. 

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Correct the nam towardthe euro and you get double digits for everyone in the dc-balt axis. What I'm taking from this is that we are trending toward an all snow event

No.  There is a high probability of mixing with sleet (at least) for the 95 corridor and points S/E.  Maybe that will change, but I wouldn't say there's a trend for it yet.  

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