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Storm potential January 17th-18th


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3 hours ago, MJO812 said:

Gfs came west

gfs_mslp_pcpn_frzn_neus_11.png

sn10_024h-imp.us_ne (3).png

This may be the run that wakes up the NYC media and the NWS, if we see it duplicated at 12Z.  I don't think those sources trust the much snowier AI models yet and with the Euro/GFS having not been very snowy for the last many runs, they're admittedly skeptical.  Fascinating battle, really.  

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3 minutes ago, RU848789 said:

This may be the run that wakes up the NYC media and the NWS, if we see it duplicated at 12Z.  I don't think those sources trust the much snowier AI models yet and with the Euro/GFS having not been very snowy for the last many runs, they're admittedly skeptical.  Fascinating battle, really.  

I suspect that it will take a change on the ECMWF to shake up the current thinking. The 6z GFS might be a plausible "best case" (if one likes snow). None of last night's EPS members had anything like it, though. A single member had 3" in NYC. The 0z RGEM had something similar though it backed off somewhat at 6z. There's just enough support on the guidance to suggest a snowier solution remains possible.

Maybe the AI models will come out on top. Hopefully, over time, the AI models will improve their skill and become an important forecasting tool.

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20 minutes ago, Tatamy said:

12z NAM is going all in for interior areas.

 

20 minutes ago, MJO812 said:

Nothing is showing a few inches for tomorrow like the nam in inland areas.

really ?

sn10_acc-imp.conus.png

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ICON is a whiff for Sunday. Came a bit west from where it was, but still a whiff. Let's see what the other models have to say. At some point, I don't think they can keep showing a whiff if this thing is real, we're 48 hours left. I'd hate to be the NWS with this one. 

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Just now, wxman said:

Reggie just wont quit  It's the best of the bad models showing a hit of consequence.  

reggie was the only model that sniffed out the surprise 4-7" storm that just hit the detroit. i think it has some merit in this game. euro is garbage, gfs worse.

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9 minutes ago, vegan_edible said:

reggie was the only model that sniffed out the surprise 4-7" storm that just hit the detroit. i think it has some merit in this game. euro is garbage, gfs worse.

The RGEM also nailed that snow/sleet fiasco 3 weeks ago. It’s the best of the short range models IMO.

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41 minutes ago, Krs4Lfe said:

ICON is a whiff for Sunday. Came a bit west from where it was, but still a whiff. Let's see what the other models have to say. At some point, I don't think they can keep showing a whiff if this thing is real, we're 48 hours left. I'd hate to be the NWS with this one. 

NWS going with 20% chance of snow on Sunday in their point and click forecast for NYC (Manhattan) Goes up to 30% in Brooklyn and through Nassau. Jumps up to 40% chance over eastern Suffolk.

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