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Extreme Cold, Snow & Sleet: SECS 1/24 - 1/26


TriPol
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2 hours ago, SACRUS said:

 

1/24 00Z

NYC

QPF / Snow (Frz)

SREF (mean):  1.3 /  9.7
NAM:   1.2 / 4.7
ICON: 1.4 / 8.1
RGEM: 1.2 / 9.5
GFS: 1/3 / 11.1
GFS AI AIGFS: 1.1 / 9.8
GEFS:   1.5 / 10.3
UKMET: 0.9 / 7.4
GGEM: 1.3 / 9.1
Euro : 1.2 / 10.2
Euro AI AIFS: 1,2 / 11.0
 



Updayted

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2 hours ago, Mo Snow said:

lol is GFS really going to win out?

It might. But do not misinterpret what the Euro and to a greater extent other models have shown. The thrill of this event will be the heavy snow. When the dynamics begin to lift to our north and east some warmer air at upper levels causes some mixing and possibly a brief changeover Sunday night. But by the time this happens almost all the most significant precipitation most likely has fallen. Therefore the greater snow amounts we are seeing on the GFS and the operational Euro. Euro AI is probably overdoing the influx of warmer air at the upper levels as I suspect is NAM.

WX/PT

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2 hours ago, OborSnow said:

If we stay snow till 7pm I can not see LI not getting 10-12inches


.

I don’t think that’s happening with all the models showing, you might be lucky to squeeze out 3 to 5 inches on the island before an icy mix comes your way

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19 minutes ago, Snowlover11 said:

We are a little over 24 hrs from this baby starting and this place is a morgue. Brutal. Guess it isn’t like the old days.:lol:

I’m here in Rockland County in a very sweet spot, the mixing shouldn’t affect my area too much, believe me, I’m ready!!

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CNJ / middle third is a tough forecast I’m thinking, anywhere in the battleground / changeover stripe is gonna be a tough call. Depends further if we’re talking accumulating sleet or white rain, or even ice - not so sure that’s well resolved. 

Hoping the city gets blasted, but for here I’m really not sure. Mt Holly is still fairly aggressive even with their now reduced totals (7-13). Accuweather has near even odds between 8-12, 4-8, and even 2-4 which underscores what I’m talking about. 

Could bust high or bust low, tough one. 
 

Down to 10 with a -6 DP! I’d say the arctic air has arrived :lol:. Still falling. 

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1 minute ago, MJO812 said:

Gfs is warmer and sleet gets into the NYC area faster.   Cut down totals to single digits

I wouldn't pay attention to the GFS inside of 24 hours. HRRR is my go to at this point, although I'm pretty giddy about the RRFS coming soon.

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3 minutes ago, weatherpruf said:

I’m actually glad to see it. What’s the famous scene in Citizen Kane… his old sled, Rosebud… a child’s memory of playing in the snow….saw a 78 year old retired superintendent recently, I asked him how they made school decisions. He said when it comes to snow he is like a kid again. He’d go out at 4 am with grounds supervisor to see three schools; if the grounds guy said close the schools he did.

Yeah, the Rosebud bit is poetic in theory, but let's be real—by the time you're a 78-year-old superintendent, that 4 a.m. snow check is less "childlike wonder" and more "please don't make me explain another lawsuit to the board." The grounds guy says close, you close: it's not nostalgia, it's CYA (cover your ass) wrapped in boots and a flashlight. Still, in a world of endless model runs and liability spreadsheets, there's something grimly satisfying about one last decision boiled down to "looks bad out there." 

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1 hour ago, TriPol said:

06z HRRR is incredible for our area as far as snow and icing. It shows half an inch of ice on Long Island.

G_ajGqFWIAAUyiK.png

G_ajKTkXQAARvD_.png

That isn't ice accumulation. That's sleet that falls, so half an inch of sleet roughly which would be about 0.15 liquid.

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13 minutes ago, TriPol said:

Yeah, the Rosebud bit is poetic in theory, but let's be real—by the time you're a 78-year-old superintendent, that 4 a.m. snow check is less "childlike wonder" and more "please don't make me explain another lawsuit to the board." The grounds guy says close, you close: it's not nostalgia, it's CYA (cover your ass) wrapped in boots and a flashlight. Still, in a world of endless model runs and liability spreadsheets, there's something grimly satisfying about one last decision boiled down to "looks bad out there." 

With remote learning the old snow days may be a thing of the past. I stopped paying attention when my youngest graduated in 2020 and I retired. Now I follow storms mostly because there ain’t much to do in winter. 2 hours ago I thought we were back on track now the gfs is showing a lot of sleet, which for the record I still think is the outcome down here; single digits and lots of sleet. By here I mean just west of the city.

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18 minutes ago, TriPol said:

Yeah, the Rosebud bit is poetic in theory, but let's be real—by the time you're a 78-year-old superintendent, that 4 a.m. snow check is less "childlike wonder" and more "please don't make me explain another lawsuit to the board." The grounds guy says close, you close: it's not nostalgia, it's CYA (cover your ass) wrapped in boots and a flashlight. Still, in a world of endless model runs and liability spreadsheets, there's something grimly satisfying about one last decision boiled down to "looks bad out there." 

Superintendent is a power position like the mayor; I had one who sent home flyers saying they don’t close for snow in places like Michigan so we don’t either. We’d be open when no one else was. Half the teachers would be out and I had to cover their classes and mine. So I decided to call out as well. Was glad to leave that district.

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27 minutes ago, TriPol said:

I wouldn't pay attention to the GFS inside of 24 hours. HRRR is my go to at this point, although I'm pretty giddy about the RRFS coming soon.

HRRR is probably too cold at this range and will come into line with other guidance. I'd love for it to verify too but it's still a little outside of where I'd use it. GFS was always going to cave. NAM getting a little better is somewhat encouraging although losing the GFS to this degree is a little concerning. It's going to sleet a decent amount into the city with this, we just have to hope the heavy snow rates can hold it back as long as possible. SWFEs will just try to screw us over in any way they can and gain the last possible inch north. This is the exact storm type where Boston will get buried. 

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