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Major Nor'easter snow storm (possible top 20) Noon Wednesday-Noon Thursday Dec 16-17, 2020


wdrag
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URGENT - WINTER WEATHER MESSAGE
National Weather Service New York NY
341 PM EST Wed Dec 16 2020

CTZ005>012-NJZ002-004-103>108-NYZ067>071-171000-
/O.CON.KOKX.WS.W.0001.000000T0000Z-201217T1800Z/
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-Western Passaic-
Eastern Passaic-Western Bergen-Eastern Bergen-Western Essex-
Eastern Essex-Western Union-Eastern Union-Orange-Putnam-Rockland-
Northern Westchester-Southern Westchester-
341 PM EST Wed Dec 16 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST
THURSDAY...

* WHAT...Heavy snow. Total snow accumulations of 12 to 16 inches.
  Winds gusting as high as 45 mph.

* WHERE...Portions of northeast New Jersey, southern Connecticut
  and southeast New York.

* WHEN...Until 1 PM EST Thursday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning or evening
  commute.

* ADDITIONAL DETAILS...There is still some uncertainty with how
  much, if any mixing occurs tonight for southeastern coastal
  Connecticut. If some mixing occurs, snowfall amounts will be
  lower.
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1 hour ago, SnowGoose69 said:

3km NAM continues to show a potentially bogus solution changing EWR/JFK to sleet at 01z.  All the way to LGA and White Plains by 02Z then it miraculously falls back below Staten Island again.  both of those won't happen.  Either it changes at 01Z and never goes back or it doesnt change til 05-06

This was why I posted the NAM looked horrid

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1 hour ago, wdrag said:

Can everyone live with this??? I think it's realistic, with another 1-4" coming I80 LI after 5AM and 3-6" coming after 5A n of I80 in far nw NJ/ne PA and se NYS CT. 

 

We'll see if this comes down a bit in future cycles?

Screen_Shot_2020-12-16_at_3_26.58_PM.png

If I lived in Wayne County, PA i could live with it

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For those worried about the sleet in HRRR,

1. It's very unreliable past hour 10.

2. You CAN continue accumulation once sleet mixes in as long as its not PURE sleet. 

In 2017 March had 7 inches snow. Turned to heavy sleet with snow. Added another 2.5 inches in 3 hours. Snow depth was 9.5.

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