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NYC/PHL Jan 18-19 Potential Threat Thread


am19psu

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nah phl gets abut an inch or two then goes to sleet then rain...i have the 3 hr incrememnts they get .1 plus qpf with 850 and 2m below with a little warm wedge at 925mb

where do you get the 3-hr so early? I don't see 'em until they come out on Meteostar at 12:00...

and yeah I was referring to specifically that image, there is some light snow before hr 108.

i hope Goose is right and the GFS is underdoing precip.

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where do you get the 3-hr so early? I don't see 'em until they come out on Meteostar at 12:00...

and yeah I was referring to specifically that image, there is some light snow before hr 108.

i hope Goose is right and the GFS is underdoing precip.

sv, the one i pay for the euro, i get it faster and 3 hr increments...

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The image I previously posted clearly shows NYC with subfreezing 850s, and the city would likely be below freezing at the surface as well (the line is just barely N of NYC at 108). As depicted, this is 2-4" for NYC proper, and a gain for the snowpack rather than a loss with minimal non-frozen QPF.

actually they aren't he was right... yea you would get some snow but not 2-4 by hr 108 nyc is well above....this is the sounding out of yonkers at hr 108...

GFS_3_2011011400_F108_41.0000N_74.0000W.png

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actually they aren't he was right... yea you would get some snow but not 2-4 by hr 108 nyc is well above....this is the sounding out of yonkers at hr 108...ncep prob smoothes the 850 line

GFS_3_2011011400_F108_41.0000N_74.0000W.png

...That most definitely shows the 850s to still be subfreezing, albeit slightly. I'd chance it with subfreezing 850s given the antecedent snowpack. As depicted, NYC would be snow through 108.

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...That most definitely shows the 850s to still be subfreezing, albeit slightly. I'd chance it with subfreezing 850s given the antecedent snowpack. As depicted, NYC would be snow through 108.

yea i wasnt looking at the 850, i just saw the really warm bl...anyway its a moot pt, the fact is it colder and helps alot

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Regardless if we loose some of the snow pack with this event, it seems that were in a pattern that will keep replenishing the snow pack all winter and even perhaps further saturating it during events like next week. The bottom line is, come the first big rain event in March and its time to get the boats out.

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Regardless if we loose some of the snow pack with this event, it seems that were in a pattern that will keep replenishing the snow pack all winter and even perhaps further saturating it during events like next week. The bottom line is, come the first big rain event in March and its time to get the boats out.

Not really sure why one would be worrying about that now?

With this first event GFS just came in colder and I am not sure if it still has the right idea,,,,

I know the GGEM going over the APPS is not going to happen cause they either go on the west side or the east side & very rarely over the spine,,,,

But this first event is not even solidly settled yet ..yet alone worrying about something in March...for all you know March could be cold and snowy as well ! scooter.gif

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Regardless if we loose some of the snow pack with this event, it seems that were in a pattern that will keep replenishing the snow pack all winter and even perhaps further saturating it during events like next week. The bottom line is, come the first big rain event in March and its time to get the boats out.

i'd assume saturating the snowpack, as you mentioned, make future melting more difficult after the first overnight freeze?

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Not really sure why one would be worrying about that now?

With this first event GFS just came in colder and I am not sure if it still has the right idea,,,,

I know the GGEM going over the APPS is not going to happen cause they either go on the west side or the east side & very rarely over the spine,,,,

But this first event is not even solidly settled yet ..yet alone worrying about something in March...for all you know March could be cold and snowy as well ! scooter.gif

The GFS surface reflection given the 500mb depiction seems overdone, the GEM may be more correct, we'll see what the Euro does, but the GFS seems overly strong if you ask me....regardless this is likely a snow to rain event for the coast, unless somehow we get a very weak system that simply scoots off the MA coast.

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The GFS surface reflection given the 500mb depiction seems overdone, the GEM may be more correct, we'll see what the Euro does, but the GFS seems overly strong if you ask me....regardless this is likely a snow to rain event for the coast, unless somehow we get a very weak system that simply scoots off the MA coast.

I have not seen the GGEM posted beyond what was shown but what was posted was going directly over the APPS...normally mountains would tear apart a system which is why they ride normally east or to the west....

From what i seen it was going over the APPS..so i do not think that would be a correct depiction either...

And no i do not think the GFS is correct yet either but i think the colder part is a step in the right direction....

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I have not seen the GGEM posted beyond what was shown but what was posted was going directly over the APPS...normally mountains would tear apart a system which is why they ride normally east or to the west....

Sorry if this is a stupid question, but would that really be a reason for why the system wouldn't track over the APPS? It's not like low pressure systems have an inherent knowledge that mountains will tear them up. :P Plus hurricanes go over the mountainous terrain of Carribean islands like Cuba all the time even though the mountains tear them up.

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Sorry if this is a stupid question, but would that really be a reason for why the system wouldn't track over the APPS? It's not like low pressure systems have an inherent knowledge that mountains will tear it up. :P Plus hurricanes go over the mountainous terrain of Carribean islands like Cuba all the time even though the mountains tear them up.

Its generally known that systems either travel the western side or the eastern side of the APPS. It has happened in the past but its very rare for a system to go directly over the APPS....

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Sorry if this is a stupid question, but would that really be a reason for why the system wouldn't track over the APPS? It's not like low pressure systems have an inherent knowledge that mountains will tear it up. :P Plus hurricanes go over the mountainous terrain of Carribean islands like Cuba all the time even though the mountains tear them up.

As with everything in nature... "the path of least resistence"

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