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potential for a few (million) mangled flakes part 2


Alpha5

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Have to disagree with your location down in Pompton Plains - Not enough elevation down there in these storms. You know as much as anyone that Butler is the dividing line in these types of elevation storms. My place in WM is 10 miles from pompton plains yet over 800 feet higher in elevation. I've seen rain down by you and over a 18 inches in my backyard (i.e. April Fools Day storm). It's crazy. But you're location is much better than the city clearly.

I have to admit, I am absolutly loving my location. There are plenty of negatives to consider. For one, the time of day, most of the precip looks to fall during the afternoon into early evening and there is still a fairly significant sun angle (very early March). Secondly, the ground is not frozen yet for 90% of the NY metro. I have not even had my first frost yet, its hard to believe that I will see my first accumulating snow before my first frost, unless of course I get the frost tonight into tommorrow, but either way, the point is noted. The positives, first its a fairly long duration event, the temperatures look to be marginal at the surface and good aloft, at least away from the immediate coast, and the dynamics look very impressive.

I'm going with a slushy 1-3" for the city and the immediate coast and 2-5" for anyone else thats east and South of the 287/I-80 intersection. I hope I am wrong, and the amounts are much higher, but its too unlikely a scenario to predict more than that. Back where I live, there should be a corridor about 50 miles wide where the CCB will coincide with the best surface conditions. That should setup through western Rockland County, down through Orange and Sullivan counties, down through Sussex and Western Passaic counties and ending up somewhere about as far south as Trenton and through NW PA. Anybody in that region is cabable of seeing 6" +, especially the highest elevations.

Sorry for the folks out in Long Island, I can't see them getting more than a slushy 1-2" except perhaps parts of the northern shore and areas that border Queens.

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Have to disagree with your location down in Pompton Plains - Not enough elevation down there in these storms. You know as much as anyone that Butler is the dividing line in these types of elevation storms. My place in WM is 10 miles from pompton plains yet over 800 feet higher in elevation. I've seen rain down by you and over a 18 inches in my backyard (i.e. April Fools Day storm). It's crazy. But you're location is much better than the city clearly.

GREAT location in west Milford as you usually get snow from the NW storms and the ones further off the coast

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Some stellar model analysis, lol. Wish i ccould get models on my phone. Should wr split the difference amd ddecided that it iis tje ssame? :-)

I am not sure the position has changed much since 6Z, but the precip amounts have dropped quite a bit as it deepens off the coast and I would presume have help to keep temps up as well.

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this entire thread says its west, the entire sne thread says its east.

That's because some people look at SLP location, others look at the 0 degree 850mb line, and others look at the 300mb or 500mb trof placement. The situation usually requires a more complex description than merely west or east. An eastward track can mean a westward or eastward shift in the thermal profiles, depending on lots of other factors.

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the 700 low actually is centered over western PA now before it contracts and moves east. That is pretty big shift. Forget the SLP, the mid levels are not favorable for snow until the very end.

Also, the SLP track is west, its inside the BM and goes over the cape.

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12Z GFS is slightly to the east of its prior runs and slightly to the west of NAM, but GFS' temp profiles are still considerably warmer than the NAM. They almost agree on the track of the low, seem to be trending toward the NAM, except for temperature profile. We may learn something about the recently upgraded NAM from these differences.

WX/PT

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The GFS has NOT changed track, it is still showing a similar lp position to other models. The only difference is its thermal profile. I would estimate, with the dynamics in place and the evolution on the gfs that its outcome would be similar to the NAM/GFS. Start as rain and than a turn to thumping snow from W to E. Especially as the daylight goes away. Even the current solution of the gfs, if its temps are to be taken verbatim, has a thumping snow after a start as rain. I would have to imagine with the dynamics in place and the strong confluence to the north, that when this thing gets cranking it will turn over quickly to a thumping snow. Especially N and W of the city, who I still think stand a good chance at seeing several inches of snow, and 6+ in higher elevations.

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Lol, CTRain in the SNE thread says its cooler for NYC while TheTrials texts me saying the low is right under NYC.

Somebody post a map :axe:

I said 850 line was under NYC, and it is before it crashes, first time its been that far north. And the surface low track at 6z was east of the cape, now its over it.

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