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December 18-20 Talking Points - Part 2


am19psu

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GFS is so similar to the Euro, it's quite scary. Similar qpf output, and track. The closer we get to the event, the more players are going to be on the field to get the models consistent.

One question: What factor was involved in the Euro's shift?

id say stronger southern s/w and the pv displacement further west.

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ukmet is smelling the euro to

http://weather.uwyo....F1=p06i&C1=pmsl

while the UKMET likely fringes NYC a la 00z euro and 12z gfs you can see it getting tugged up north in the last frame and it looks like it wants to make a due north turn, maybe with a slight easterly component initially but that would put it within 30-40 miles of the BM...so far only good trends today

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GGEM looks good:

233_100.gif

its about to close off at 500 too look for some decent to good precip in the next frame...this looks to be the most west but that could just be because of the metric system and me being too lazy to convert yet. Either way it def gets 10mm into the south shore of LI which is about .4 in so not bad

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Guest Patrick

Assuming the west trend continues, and looking at the GGEM ( know, it's the GGEM), your concern might be valid. However, the counter to that is the slower movement and intensity, in general terms. Mixing could certainly be an issue for ELI though. All options are still on the table.

If these west shifts continue I wouldn't be surprised to see mixing become an issue for LI and extreme SNE. With this type of setup (no real Canadian H) and a Miller A, the layer will warm pretty quick.

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One bit of optimism in this situation is that in recent experience when models lose a storm and then bring it back the trend often doesn't stop there, some may call this anecdotal which is fine but I doubt the trend stops here, I'd say NYC for sure and poss PHL can still get a SECS out of this. The models have been so inconsistent it is mind boggling, so in all honestly who the hell knows what'll eventually transpire.

Wasn't this last year's mantra: The models lose the storm in the 3.5 to 4.5 day time, then bring it back in a big way. I seem to remember this a couple of times last year.

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