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Snow Event 1/15-1/16


Mr Torchey

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BOX leaning toward NAM/EC profiles, but not discounting the GFS.  They suggest mixing south of the pike.  And then for the bottom line..............drum roll.......................

 

WE DO THINK MOST OF SNE WILL SEE AN INCH OR 2 OF SNOW EXCEPT FOR THE ISLANDS...BUT WITHIN THIS AREA THERE MAY BE A W-E AXIS WITH SNOW ACCUM UP TO 4". BASED ON THERMAL PROFILE AND LOCATION OF LOW LEVEL FGEN THIS AXIS MAY END UP AROUND THE MASS PIKE...BUT AXIS COULD STILL END UP FURTHER N OR S.

 

Bye-bye 40's.

 

39.0/27

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From Upton NWS:

WITH THE POTENTIAL PLAYERS FOR THIS EVENT STILL AS FAR AWAY ASALASKA...THERE IS OF COURSE STILL UNCERTAINTY ON THE FCSTDETAILS. IF THE COLDER ECMWF SOLUTION COMES CLOSER TO REALITY...PRECIP TYPE INLAND COULD END UP MOSTLY SNOW WITH GREATER AMTS...POSSIBLY A STRIPE OF 6-INCH AMTS. WILL MENTION THIS POTENTIAL INTHE HWO.
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This went from snowshowers on the south coast to a full fledged SWFE in 24 hours.......congrats up north guys! Scooter ginx

 

 

On the GFS it did, but it really has minimal support right now for something that amped.

 

 

GFS would actually give Scooter a pretty big thump of snow...lol.

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On the GFS it did, but it really has minimal support right now for something that amped.

 

 

GFS would actually give Scooter a pretty big thump of snow...lol.

Referring to this coming north, he was joking around last week I think.  Enjoy the snow guys.

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it really is basically a SWFE look there. would potentially be more in NE MA/BOS area than KTOL on that evolution the way the mid-levels warm. 

 

 

Yeah there's like a 4-6 hour paste bomb looking at the soundings and omega. I think its probably overdone/over-amped, but it actually might be better for trying to get more snow out of it for that area.

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18z GFS came NW of 12z

 

:whistle:

Why when the Euro and euro ens are both cold are folks giving any credence to GFS? Never ever will understand it

 

Because it's doubling down and continuing the northern push--a push the EC has also done during the past day.  That it's continuing to do so is suggestive of further movement.  To that extent?  Who knows.  But I don't think you can just toss it. 

 

in fact, BOX did not toss it's 12z run.  If my comment above has any merit, I think they were wise not to.

 

WE ARE TRENDING TOWARD THE COLDER SOLUTION BUT ALSO BLENDING IN THE GFS AS IT CANT BE COMPLETELY DISCOUNTED AS THE EVENT IS STILL 48 HOURS AWAY.

 

it really is basically a SWFE look there. would potentially be more in NE MA/BOS area than KTOL on that evolution the way the mid-levels warm. 

 

We know how those can play.....things of beauty.

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:whistle:

 

Because it's doubling down and continuing the northern push--a push the EC has also done during the past day.  That it's continuing to do so is suggestive of further movement.  To that extent?  Who knows.  But I don't think you can just toss it. 

 

in fact, BOX did not toss it's 12z run.  If my comment above has any merit, I think they were wise not to.

 

WE ARE TRENDING TOWARD THE COLDER SOLUTION BUT ALSO BLENDING IN THE GFS AS IT CANT BE COMPLETELY DISCOUNTED AS THE EVENT IS STILL 48 HOURS AWAY.

 

 

We know how those can play.....things of beauty.

This run would fill your qpf fetish appetite

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It's pretty clear what the GFS is doing...  There is an intense baroclinic wall setting of SW to NE along the interior lower App/lower MA regions...  That region separates fresh cP air from higher Gulf PWAT air along a tight thickness packing along that axis..  

 

That is sooo  flappin' volatile it really doesn't take but a slight impetus to pull that PWAT air up such a steep frontal slope, and you get a very efficient QPF producer because more upright frontal slopes associated with steeper gradient means the parcels turn upward proficiently along the baroclinic axis. 

 

Yeah ... it could be right, despite the lack of support, and my own chagrin for seeing this thing thread a needle so finely.   By the way, there's 0 wiggle room on this thing - although, this GFS run is intense enough to maybe give 3 wiggle rooms because of size.  But the blend overall doesn't allow for much dinking around here - this edges any SE, you get cirrus shrouds.  

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Ugh the GFS sorta sucks down here... a couple inches to sleet and maybe rain or ZR? I'm not sure why Kevin is tossing it... everything has been ticking north since yesterday. The SREF amped members lead the way yesterday so I think it's reasonable to assume the trend will continue. 

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