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SnowGoose69

Professional Forecaster
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Everything posted by SnowGoose69

  1. Yeah, it had some similarities to April 82 in the general pattern but it was a more dirty/late phase and really favored eastern area. NYC lucked out a bit with a mega band that developed late as the 700 low closed off. The forecast looked to be on its way to severely busting for awhile that evening
  2. There will be a shaft zone if indeed the changeover gets as far west as NYC because the dynamics don't get going for awhile. I said before the snow could be pretty light and unimpressive through 12Z Monday before it goes crazy. There is sort of a zone in SE PA and SW NJ that might do well all night but up here I think it could be pretty meh and then go nuts after 10-12Z..if the changeover makes it far west I think there will be a relative snow min area
  3. The last few years they honestly seem to do the opposite of one another inside 72 hours. If one moves one way the other does the reverse
  4. Even if there is a changeover west of ERN LI there will be Jan 87/Feb 2014 type amounts before the change. I would still not be worried 5 boroughs and west at this stage
  5. Basically the RGEM and NAM are pretty unreliable past 48...especially when they're doing something way different than other models or waffling around from run to run. Even the NAM right now I would not trust entirely past 36-48 with this since its been bouncing around quite a bit
  6. The RGEM beyond 36 has often had a tendency to overamp and go crazy. It does it less often since I believe they upgraded it in 2018 but you'll still see it, especially with these dynamic east coast storms
  7. It has always tended to be amped beyond 36. Feels as if the last 2 years it does it less, I think it was upgraded in 2018 which lessened that bias somewhat but it still does it from time to time
  8. There is a tendency with most big storms to see a movement in the 48-90 range which then reverses back. I still think QPF will be underestimated with this due to that crazy easterly flow
  9. The flow becomes more NNE by the time the better snows get north of the city which is why I think the max benefits of that 850 easterly flow probably happen from around the city south
  10. The confluence early in the run was actually worse near New England on the Euro but it exited faster and the system slowed or semi stalled not to mention it occluded a bit later. I still think we could just as easily see this tick south again as it could north
  11. In all seriousness if the 12Z Euro continues going south you have to think we have big problems. The 06Z would have basically missed most of my area entirely outside of LI and a decent part of western SNE. It’s hard for me to see it getting much worse but who knows
  12. Yeah the occlusion rate of speed as I said in the SNE forum is another factor. The GFS occludes too fast while the CMC i think occludes too slow. As a result much of this forum probably should have gotten less snow in the CMC depiction than the model actually spat out. In general occlusion will occur a bit later than models indicate with these systems here
  13. The areas which will get hit by both the WAA and then the main low is really really tiny. It might be focused mostly near the eastern portion of Mason Dixon line southeast into DE. Even DCA on many of the models and ensembles gets its snow 80/20 on the WAA/coastal.
  14. There’s just been some strange stuff this winter overall. The December storm had the really bizarre displacement of the 700 low from the center which while the occurrence itself wasn’t unusual the fact it was SO displaced in a system that basically began developing over Tennessee was odd. This time it seems to occlude unusually fast. As Tip said, part of that is the setup isn’t great aloft and the ceiling is low on how much it can mature but it seems to be occurring at a faster rate than normal regardless
  15. The occluding factor is what makes this thing tricky on accumulation. The GFS probably occludes it too quickly while I felt the GGEM didn’t do it fast enough. This led to stupidly high snow totals near NYC on the GGEM given it’s evolution.
  16. As I mentioned in the SNE forum there are exactly two storms where DCA and BOS both saw 6 plus and NYC saw less. So it’s really a rare situation and any model showing that idea 98 out of 100 will be wrong
  17. That won’t happen. BOS is probably fine but I think there’s a decent chance NYC gets more than ORH or BDL and certainly any place west of ORH in MA.
  18. I’m gonna be wrong probably on eastern SNE, I didn’t think this would pull that wonky departure/hook north move ala 1/25 and 11/11/87 (the only storms on record BTW where DCA and BOS got 6 and NYC didn’t). Places like BDL/ORH maybe the idea pans out.
  19. Through 72 the UKMET looks less shitty than the 00 or 06Z Euro at 78 and 84
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