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December 14/15 winter storm threat


Typhoon Tip

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Oh I agree. My response to him isn't to imply there isn't going to be snow on the ground. I feel like sometimes this becomes a war of attrition. Anyone who has been on here for years knows I'm about as big as a snow fan as their is.

 

Kevin likes extremes and likes to exaggerate potential. So I was pointing out why something like 12" OTG Monday is unlikely. More like half or 60% of that which is in line with your bolded quote above. If this system trends noticebly juicier in the next 36 hours, then I would agree that 12" is more fathomable.

As long as there is playable snow, sledding, cross country etc its all good. Those who preen for mega death bands etc will have to wait

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System coming out from near the Gulf moving just SE of ACK with an arctic dome overhead. You're always going to have precip with that. I have a feeling models may tick NW or stronger starting tomorrow.

I really do think it'll trend at least stronger....don't know about NW with that high placement, but the baroclinic zone is pretty stout over the adjacent water.

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I really do think it'll trend at least stronger....don't know about NW with that high placement, but the baroclinic zone is pretty stout over the adjacent water.

 

Yeah that's why I said maybe a little stronger, because it may be tough for a NW tick...but there is enough time left that it's not out of the question. By default...a NW tick would imply stronger.

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I really do think it'll trend at least stronger....don't know about NW with that high placement, but the baroclinic zone is pretty stout over the adjacent water.

The upper levels will have to improve to see a strengthening of the surface low in the progs.  But QPF could still end up being moderate with such a large temp gradient, even with a weak surface system.  And as others have said, with a big fluff factor, 6-8" requires only modest QPF.  I don't think I would anticipate anything greater than about 15:1 until the short term, because high ratios are relatively rare and fickle. 

 

I wish we could get the southern stream s/w to dig, strengthen, and swing underneath us, so we could add a period of more significant QPF associated with the coastal to a longer duration overrunning.  That would bring with it temp issues as usual, but it would also obviously raise the high end potential.

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What're they showing? I only have MSLP/850 T/sfc T access.

 

 

All of SNE is in the 0.50-0.75" shading except from PVD-GHG and southeast which is 0.75-1.00 shading. The 0.50 contour gets up to PWM-CON-DDH. The rest of NNE is 0.25-0.50 except northern maine.

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The upper levels will have to improve to see a strengthening of the surface low in the progs.  But QPF could still end up being moderate with such a large temp gradient, even with a weak surface system.  And as others have said, with a big fluff factor, 6-8" requires only modest QPF.  I don't think I would anticipate anything greater than about 15:1 until the short term, because high ratios are relatively rare and fickle. 

 

I wish we could get the southern stream s/w to dig, strengthen, and swing underneath us, so we could add a period of more significant QPF associated with the coastal to a longer duration overrunning.  That would bring with it temp issues as usual, but it would also obviously raise the high end potential.

Yeah, 500mb timing isnt ideal and the s/w strength is in question still. Def trending weaker in that dept.

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Nice...yeah it looked a hair better on the ensembles from a MSLP.

Seems like we need some amplification to make things really good. While we will all  get some mood snow on Saturday... it's quite possible mid level warmth flies in (like the GFS and some ensembles show) if the offshore low takes a while to get organized.

 

Maybe a 1-3 kinda deal to pingers/snizzle seems on the table IMO. 

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Seems like we need some amplification to make things really good. While we will all  get some mood snow on Saturday... it's quite possible mid level warmth flies in (like the GFS and some ensembles show) if the offshore low takes a while to get organized.

 

Maybe a 1-3 kinda deal to pingers/snizzle seems on the table IMO. 

 

It def gets warm aloft for a time south of the pike, but for someone like myself..a low developing and riding near the Cape will flip me to rain. Personally I'd rather weaker for selfish reasons. :lol: I think my area would do well with cold air over the water and mood snows.

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Seems like we need some amplification to make things really good. While we will all  get some mood snow on Saturday... it's quite possible mid level warmth flies in (like the GFS and some ensembles show) if the offshore low takes a while to get organized.

 

Maybe a 1-3 kinda deal to pingers/snizzle seems on the table IMO. 

 

Can't say I'm even excited at this standpoint given model instability and the differences between the Ops and ENS.  My gut says the ENS are overdone and this thing will trend weaker in time like everything else.  But that doesn't mean a nice wintry event can't occur for many.

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It def gets warm aloft for a time south of the pike, but for someone like myself..a low developing and riding near the Cape will flip me to rain. Personally I'd rather weaker for selfish reasons. :lol: I think my area would do well with cold air over the water and mood snows.

 

 

The snowgrowth in this one looks optimal right now. That can change, but it definitely creates an entirely different feel for the event when it happens versus when you are getting snow grains or light baking soda falling from the sky.

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The snowgrowth in this one looks optimal right now. That can change, but it definitely creates an entirely different feel for the event when it happens versus when you are getting snow grains or light baking soda falling from the sky.

 

LOL light baking soda.

 

NAM should satiate the QPF peeps.

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Well most have 3-4 now and with low end warning of 5-9 that would get us close

 

3+5 = 12"

 

Them is some good school in Tolland.  :)

 

They are def a little juicier on the QPF maps.

 

Jucier is good.  If we can sustain the decent ratios, many areas may attain warning criteria.  I guess if we're taking 6 hour measurements, we can come up with higher amounts. Ground truth may lag behind that though.

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