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NYC/PHL Jan 18-19 Potential Threat Thread


am19psu

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This run has to signify the effect of the AO.. That lag effect. This is the cold shot we've been waiting to see. Not that we want it, but the bottom really falls out on this run.. Just absolutely frigid on this run..

That would be pretty impressive this storm did bring lots of moisture followed by record breaking cold temperatures next weekend. You talk about about playoff football being cold.. Reminds me of the AFC 1981 Championship game. Man was that cold. This looks really cold that weekend..

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This run has to signify the effect of the AO.. That lag effect. This is the cold shot we've been waiting to see. Not that we want it, but the bottom really falls out on this run.. Just absolutely frigid on this run..

That would be pretty impressive this storm did bring lots of moisture followed by record breaking cold temperatures next weekend. You talk about about playoff football being cold.. Reminds me of the AFC 1981 Championship game. Man was that cold. This looks really cold that weekend..

Its guaranteed to be bone clenching cold for the AFC game next weekend. Whether its in NY,Baltimore,Pitts or Boston, well Foxboro! And yep, I do rem watching that game in 81.San Diego had no chance with that cold.

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I don't know if I believe the event at 144-168 is tracking offshore with no -NAO...the previous event may have to really blow up over the Maritimes otherwise the ensuing storm could cut....it won't be a true cutter but it may try and run over or west slightly of NYC.

it does, it drops to sub 976 and becomes the 50/50 low and creates a -nao, granted not severly neg but enough.

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it does, it drops to sub 976 and becomes the 50/50 low and creates a -nao, granted not severly neg but enough.

Given how strong the trough is at 500 in the Plains at 144 hours, its surprising to see it be only marginally more negativelty tiled at 168 with a further west track...I'll bet many of the Euro's 40 something ensemble members do show some sort of inland track on that storm....if you just showed me the setup at 144 and asked me where the surface low would be at 168 I'd say Plattsburgh or Burlington.

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Given how strong the trough is at 500 in the Plains at 144 hours, its surprising to see it be only marginally more negativelty tiled at 168 with a further west track...I'll bet many of the Euro's 40 something ensemble members do show some sort of inland track on that storm....if you just showed me the setup at 144 and asked me where the surface low would be at 168 I'd say Plattsburgh or Burlington.

not sure if you saw the h5 setup, but here it is for hr 144 and 168

00zeuro500mbHGHTNA144.gif

00zeuro500mbHGHTNA168.gif

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The 96 hour analogs are not in yet but here are the ice storm and snow composities for the 72 hour CIPS analogs...03/13/84 is the one event which is showing up all over...it was a 1-3 inch snow followed by several hours of FZRA for the immediate city, the interior saw significant icing.

http://www.meteo.psu.edu/~gadomski/NARR/1984/us0313.php

ice15gfs212F072.png

COOPmean15gfs212F072.png

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12z Nam

At 72 hours, NYC has 0.14 QPF with a temperature of 32.5. After that, temps rise to 37.7 degrees with a cold rain. Looks like a real icy situation to the north and west of the City on the nam.

Yeah for N NJ / NYC looks to be 1-2" of snow/sleet at the front, then ice/rain inland with temps at 32-35, and then cold rain 35-40 on the coast. Either way looks like the snowpack could hold and flooding will be non-existent or minimal. As long as the coastal remains to our east will be very hard to get temps above 35-40...

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GFS is definitely showing an interesting situation... 850s NW of the city are somewhat marginal - 0 line cuts across CT/MA border, but it is very close to being an all frozen event...

yea... I'm not quite understanding why the 32 line on the surface temps is so far north with this set-up.. With a coastal well east of the area, I would expect a surface wind off the land and would not expect a freezing rain/sleet situation that it depicting in the CCB part of the storm. I would think temps of 32-35 with wet snow for most n&w burbs

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yea... I'm not quite understanding why the 32 line on the surface temps is so far north with this set-up.. With a coastal well east of the area, I would expect a surface wind off the land and would not expect a freezing rain/sleet situation that it depicting in the CCB part of the storm. I would think temps of 32-35 with wet snow for most n&w burbs

Details aside major deepining storms sure do like passing right over the benchmark this winter!

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