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SnowGoose69

Professional Forecaster
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Everything posted by SnowGoose69

  1. Probably 3-4pm. As always though in a setup like this with a nearly north moving system with a strong high over Canada the start time could be a few hours earlier than it looks at this range
  2. Also a different setup. I believe it was a Miller B as was Nemo. I don’t recall a case with this good of a 50/50 and high with a semi Miller A type setup where places west of Suffolk county saw long duration changeover and then went back to snow
  3. The 700/850 lows may not be stacked though so they could be further north of the surface low. I would still think sleet or mixing is more likely over SE NJ or central or eastern LI. Taking it west of there in this setup really seems tough
  4. Yes. Or go to rain or sleet and stay as rain or sleet. The flip back just doesn’t occur practically ever. December 2002 was a case where it did that but the setup wasn’t anywhere near this good or really close overall in the pattern
  5. The key with the NAM as I said yesterday is consistency. If the next two runs show almost the same solution as the 06z you can trust it’s onto something. If it waffles 75 miles southeast again this run you can more or less ignore the NAM til inside 36. The NAM sometimes gets these things right at 60 but the dead giveaway of that is run to run consistency which is very rare by the NAM at that range otherwise.
  6. That’s probably the only thing that matters at this stage. I don’t see anything substantial shifting with the block or the high. If the shortwave is stronger than expected it could be able to cut more north. I’m still wary here because historically with this sort of pattern in place at 500/surface we’ve never seen a storm like this cause the metro to go snow-Sleet or rain-back go snow. Never in the last 40 years
  7. With lighter winds I would think this event could be 15:1 area wide but it’ll probably end up 10:1 everywhere. I guess inland maybe they get 12:1 due to frictional effects maybe giving them less wind
  8. I think it’s just the snow maps algorithm. The model would indicate Long Island sees way more snow than that
  9. ECMWF west again. Beginning to think a period of accumulating snow, even at the coast is possible after 19Z or so. I'm talking maybe an inch but no doubt the 5 boroughs could see the ground get covered which I highly doubted 12-18 hours ago
  10. The HRRR seems to be getting more amped and juiced with each passing run
  11. It never wavered. Normally the NAM waffles a ton in the 48-84 range. When it doesn't beware...see tomorrow's event where the Euro sort of just caved. The NAM has never really budged on that.
  12. That was before the 2nd upgrade. The Jan 2013 upgraded caused suppression issues at times for the Euro. They upgraded it again in late 2016 I think and since then its tended to have over amplification issues from 90-120
  13. Euro is now much wetter tomorrow. It definitely blew this one it seems.
  14. Given the -NAO and high in place it would be a fairly significant bust if this ended up primarily rain near the coast or the average snow total amongst EWR/NYC/JFK/LGA was not at least 5-7 inches.
  15. The Op Euro has had major overamped biases at this range now for several years. I believe we could see a run today whether its this one, the 18 or the 00 tonight be insanely far NW (I'm talking where most of the 95 corridor is primarily rain). Its ensembles though will probably be SE of whatever it does on that same Op run
  16. The snow totals would likely be much higher in places just east of that cutoff if the UKIE verified. Islip for example wouldn't see 0
  17. Sometimes they can make a good run up then shift east hard. It’s probably what’ll happen. It just won’t get was far north and west as the RGEM and some ensembles show
  18. The GFS has come a long way. Although I believe it’s too far SE and it’s not grasping upper or mid dynamics and hence QPF it was always reasonably close to other global guidance from 5-6-7 days out. As recently as 5 years ago that never would have happened
  19. The RGEM is likely too far west but that tells us the GGEM will probably be close to the same idea. The RGEM usually at this range portends what the GGEM will show
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