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March 22-23 Storm Thread: Cabins and Pony-Os?


powderfreak
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5 minutes ago, powderfreak said:

3km NAM... very narrow band of mid-level goodies then a lot of orographic snows.  Mountains still destroyed but definitely scattered some pasty snows SE of the mountains.

IMG_2622.PNG.bce54cff6482da09476a9f7d67130500.PNG

:o   :lol:

If that verifies there will be a lot of shocked people out there, including some on air mets.

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4 minutes ago, dendrite said:

That’s 10:1 using the ptype snow algorithm. So there’s going to be QPF wasted on some initial rain, catpaws, wet ground, slush etc. 

Yeah this crap is gonna be like 5 or 6 to 1 I'd think outside of the really high terrain. Only if it comes down legit heavy will it be close to 10 to 1.

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5 minutes ago, dendrite said:

That’s 10:1 using the ptype snow algorithm. So there’s going to be QPF wasted on some initial rain, catpaws, wet ground, slush etc. 

Yeah true.  And looking at SFC temps even on that snowier outlook would suggest a sharp gradient in the 1,000-1,200ft range.

Gene could be shoveling 8:1 cake while 700ft is 5:1 slop on the grass.

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5 minutes ago, powderfreak said:

Yeah true.  And looking at SFC temps even on that snowier outlook would suggest a sharp gradient in the 1,000-1,200ft range.

Gene could be shoveling 8:1 cake while 700ft is 5:1 slop on the grass.

Most of this winters systems has had those ratios here.........lol

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Man if there was a good air mass in place.

Even at 11am tomorrow it's just cranking on the HRRR in the eastern half of VT and western half of NH and the model doesn't even have one listed station at even 32-33.  It's all above 1,000ft and even 1,500ft for anything approaching 32F.

By 1-2pm it's more like 2,000ft for freezing levels and the ASOS spots are mid/upper 30s and rain.

IMG_2624.thumb.PNG.05042803e42f7dd42cf5832a7d5d895a.PNG

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Just now, powderfreak said:

Man if there was a good air mass in place.

Even at 11am tomorrow it's just cranking on the HRRR in the eastern half of VT and western half of NH and the model doesn't even have one listed station at even 32-33.  It's all above 1,000ft and even 1,500ft for anything approaching 32F.

IMG_2624.thumb.PNG.05042803e42f7dd42cf5832a7d5d895a.PNG

I'm 36/32 right now. Not the preferred way to start a snowstorm. You have to get up around 1700ft to find 32-33F and snow north of Plymouth.

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Just now, STILL N OF PIKE said:

Hill towns west of ASH and MHT look decent on gfs 

GFS has a cross hair sig on the soundings out there...not sure if its right (NAM is a bit lower with the lift...prob because its further west)....but if that type of sounding happened, then you'd see an easy flash to heavy snow. The cross hair sig will help with latent cooling.

 

 

Mar22_00zGFS15.png

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2 minutes ago, ORH_wxman said:

GFS has a cross hair sig on the soundings out there...not sure if its right (NAM is a bit lower with the lift...prob because its further west)....but if that type of sounding happened, then you'd see an easy flash to heavy snow. The cross hair sig will help with latent cooling.

 

 

Mar22_00zGFS15.png

Way out there def. 

i was thinking literally just west of MHT at like 750’ in bedford /new boston hills 

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