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Midweek Storm DISCO part II


DomNH

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I think the reason why the 00z NAM is so warm, is because it's not giving us the dynamic cooling that 18z had, and it is keeping the precip out west. Look at the 24 hr qpf from 18z and 00z. HUUUGE difference...lol. Lack of lift is allowing the 850 levels to torch on the 00z run. This is the big difference I think.

18z

post-33-0-40221700-1295321320.gif

00Z.

post-33-0-43066900-1295321335.gif

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LOL Fair enough.

I'm not huge on Friday.....GFS and EURO have it developing a bit too late to be a huge deal and that is the way I'd lean, for now.

Both Euro and GFS have grown more robust with each run. This is not a wrapped up low. It is overrunning which won't be dynamic but can dump some pretty hefty snows.

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You think? SR jackpots are pretty rare

great snow conditions, but one of the lower avg snowfall of majors in NE

Huh, this setup is a SR special, they average less because they do not get the 40 inch upslopes the Green do. , probably why their base is there so long after Stowe etc is closed.

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i think the big Question for accums...seeing that mid levels may warm ahead of time...is wether this initial THUMP of QPF >>>>>gets in here early!

I would lean toward an area from about ORH s to GINX and westward possibly getting in on the snow by 2-3 am from S to N. and it looks like it could try and pile up esp between the quabbin -tolland and west to GC...in the wee hours. just saying. after 8-10 am mid levels look like they may torch.

so depending on east ward extent of precip heading..north with the first dump ..i.e qpf thru 13z-15 (s to n) that's what i would peg for Snowfall for SNE. ....after that taint and rain (marching toward 495)

Danbury 4 (snowing by 1 am)

Pete 7 (mid level warm fast S-N)

MPM (6)

Tolland (3)

Orh (4)

Fitchburg (4)

Greenfield ( 4)

PVD trace

(KGAY) 2 (depends on qpf thru 15z)

(Me) 2

SE nada.

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I think the reason why the 00z NAM is so warm, is because it's not giving us the dynamic cooling that 18z had, and it is keeping the precip out west. Look at the 24 hr qpf from 18z and 00z. HUUUGE difference...lol. Lack of lift is allowing the 850 levels to torch on the 00z run. This is the big difference I think.

18z

post-33-0-40221700-1295321320.gif

00Z.

post-33-0-43066900-1295321335.gif

Its gonna be close...even the warm 00z NAM had the warm layer extremely thin. This is a pretty nerve wracking forecast for my clients...there could be 6" of snow in the ORH hills then some sleet and only some minor to low end moderate icing....or there could be only 2-3" of snow followed by a significant icing event.

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Its gonna be close...even the warm 00z NAM had the warm layer extremely thin. This is a pretty nerve wracking forecast for my clients...there could be 6" of snow in the ORH hills then some sleet and only some minor to low end moderate icing....or there could be only 2-3" of snow followed by a significant icing event.

Yea tough tough call for CMASS NTCt , juiced up system, like I said before utility Chiefs not liking that NAM depiction, could be sig power implications. My thoughts are it has the precip too tight and high, spread that out, cool it down, seeing trouble if it is not sleet.

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Well, GFS does not look like the nam........

No it doesn't...still liking the snow idea, though not as cold as the outrageous 18z run. Its sfc temps are what is surprising to me....it usually has a very tough time holding in the cold sfc temps on an ageostrophic N wind given its lousy resolution, but it keeps temps in the upper 20s through 18z all the way to Rt 128.

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Huh, this setup is a SR special, they average less because they do not get the 40 inch upslopes the Green do. , probably why their base is there so long after Stowe etc is closed.

Man made outlasts natural every time + latitude and favorable exposure for the late season

we'll see, I said cannon jackpots here and they get 165" year so my call there doesn't pass my test anyway, was a dumb post

btw they're already at 128" this year :snowman:

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No it doesn't...still liking the snow idea, though not as cold as the outrageous 18z run. Its sfc temps are what is surprising to me....it usually has a very tough time holding in the cold sfc temps on an ageostrophic N wind given its lousy resolution, but it keeps temps in the upper 20s through 18z all the way to Rt 128.

Yeah, Nam is tracking this low much closer to the coast wrapping in warmer air in the mid levels while the GFS is further east and trying to hold the cold air in all the way to the coast, I guess we wait on the euro for some consensus.

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