Obs and nowcast Sun 9A Jan 3 - 6A Mon Jan 4 2021

[wdrag]

Mostly all rain should be confined to the region s of I-78, LI-NYC.  Sleet or snow begins near I78 ~9 or 10A and spreads northeast, possibly possibly drying out to flurries reaching CT/se NYS midday. Thereafter the bigger part of this event occurs 2PM-2AM as mostly wet snow just nw of I95.

Heaviest snowfall seems slated for the elevations including the Poconos-Catskills with 3-5", 2 to possibly 5" rest of se NYS, nw NJ along and north of I80 to the Merritt Parkway-in other words west of the CT River, but possibly a dryer zone of under 2" to at most 4" ne CT-central MA. These amounts are uncertain-based on guidance through the 06z/3 cycle. There will be melting on pavement today below 700 feet elevation during the day but a plowable snow seems certain for the hilly areas, especially w of the CT River with accumulation on all untreated surfaces after sundown. 

The precipitation driver will probably at least in part be an inverted trough developing northwest from a rapidly deepening low pressure system heading east northeast of the mid Atlantic coast. The inverted portion of the trough should be back to the Poconos and that I think is why the heavier qpf tends to be modeled there.

[wdrag]

fwiw.. I like what's going on with the 11z temps... I see it as plenty cold for snow...a ne breeze with overcast skies and 29F here in Wantage of nw NJ.  There will be a little +1C aloft that we'll have to clear out by tonight but that would be the sleet part in the I80-i95 region. 

[wdrag]

fwiw...snow and sleet has started I76 in se PA. Nice impressive radar signal this morning but that might be due to a bit of bright banding with mixed icy precipitation aloft. 

[ebwx]

Sleet in East Brunswick 36 degrees

[Albedoman]

here in Macungie PA near Allentown. Over an inch already  

[Albedoman]

heck my squirrels like over-performers  too

 

[wxman]

snowing here at 33 ground is white.

[NEG NAO]

Moderate to Heavy Snow Northern most Middlesex County NJ 33F

[NEG NAO]

Mix of Sleet and Snow 34  F now the rain- snow line cutting through Staten Island and points west and south - nobody else going to post OBS here ?

[IrishRob17]

29/27 and cloudy in Campbell Hall

[chrisNJ]

Nice surprise dusting and roads are white here in Hillsborough. Currently moderate cotton balls. 

[Northof78]

Heavy snow now, about 1”/hr. with huge flakes...

[uncle W]

Pouring snow in wild acres pa.

[Rtd208]

Snow/sleet falling.
Temp has fallen back to 34

[stormskeptic]

Snow started about 10 minutes ago. Quickly became heavy with large flakes. Ground white already. Livingston, NJ Essex Co. 

[sussexcountyobs]

Just started snowing. Sticking to all surfaces. 28°

[MJO812]

Sleet here in Brooklyn 

[NEG NAO]

this first batch is almost over here in NJ - what comes after this ? radar is empty

[hooralph]

Sleet and fat snow flakes mixing in on the UWS.

[Northof78]

Heavy snow continues with massive flakes, about 3/4” on the ground

[NYC10023]

nice big fat flakes in upper west side. starting to accumulate (well, cover the grass in Central Park)

[cardinalland]

Snowing in upper Manhattan massive flakes

[LongBeachSurfFreak]

Light rain on the south shore 

[hooralph]

Can confirm: full snow globe effect on UWS.

[ForestHillWx]

That was fun. Heavy snow for about an hour. Picked up 3/4-1”. Very fluffy. Roads are covered and sanders were out...Getting that Sunday pay. 

[dWave]

Rain..with an occasional wet snow flake mixed in the Bronx..around eastern end of pelham pkwy

[Dark Star]

Moderate snow just turned to a light drizzle in Central Union County NJ at 10:15 AM.

[BlizzLuv]

Had big flakes for a while, enough to coat rooftops and colder surfaces and areas of the lawn. 

[HVSnowLover]

Heavy snow/sleet mix 

[bch2014]

Snowing on UES.