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NYC/PHL Jan 25-28 Potential Threat Part 2


am19psu

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I absolutely agree. A +NAO in a Nina of especially this strength is just asking for trouble, when the high is able to escape out to sea the way it has been in most model progs for this timeframe.

A long fetch SE flow into the storm is majorly bad outside of the inland, elevated areas that can escape it. There is a lot of preceding cold air, which may be the one saving grace for a lot of people.

We need the storm to develop faster and catch us when the high is still in place.

I'm not 100% sure about all of that. The +PNA is saving us right now.

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Feb 2006 comparison is not legit aside from the big amplifying trough and the 50/50. Feb 2006 had one of the largest PNA ridges I have ever seen..this event can't get the PNA ridge building until a few days later (which I think will feature a threat...a few days after the 96-102 hr event). Still..here's Feb 2006 for comparison. 576dm heights into British Columbia

021103.png

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gfs clearly a speed outler to its ensembles but ensembles still fairly quick and def. cold. With the ukie going east and the ggem appearing less amplified, the trust is likely more amped than the gfs but no where near the ggem and prob a little less than the euro.

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This could quite likely be the GFS error/feedback issues it normally has at this timeframe. UKMET has been lurching all over the place with storms all winter. I guess it comes down to the Euro, as usual.

The Euro is no better than any other model so far this season in my eyes...it's been a fish out of water to a point I have never seen before.

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226 people in this thread...must be a big snowstorm chance on the horizon.

All the OP runs are until inside of about 72 hrs are hot little ensemble members with a nice rack; what is of paramount importance here is that we have the GFS, EURO and GEM ensembles ofc lustered over the MB @ day 5....can't ask for much more

Lets the op runs waiver from LEK fanny runner to a Bermuda blip on the radar.

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The amplification is real..it's pretty much a given when you even take a brief gander at the upper air pattern. The timing of the 50/50...the confluent flow/etc..is yet to be determined. But this one definitely has a higher chance of coming closer to the coast than any other event. Return flows with high pressure sliding northeast make me want to fork my eyes out...they are literally nightmares for models.

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