OBS-Now's for any icing reports mainly midnight tonight-10AM Saturday 12/28/24 just a few miles away from the core urban area of NYC

[wdrag]

Attached is the NWS map for the winter weather advisory for icing tonight on untreated surfaces. Most of the icing should occur just northwest of I95 but spotty icing could occur even near NYC and on Long Island dependent on max temps this afternoon, and maybe a 2-3 hour window of radiating chill at sunset before clouds thicken and temps respond upward. Even if that occurs, wet bulbing and frozen ground could permit icing on rain contact with the frozen ground just a few miles away from NYC.. 

Canadian modeling and the SPC HREF have been leading the way as well as the HRRR. The ECMWF and GFS global models have been largely devoid of ice tonight. 

I've also added NWS probabilistic chance of .01 freezing rain and .10 (brown 5% chance). 

[MANDA]

The road crews in my area are sure ready.  Salt literally dumped on the roadways in very significant quantity.

Really nuts.  Brine would have handled this very well.

[IrishRob17]

28/24 here near KMGJ

[NorthShoreWx]

30/27 here 10 miles NW ISP

[Rjay]

Was 28 a little over an hour ago.  Now up to 33. 

[RedSky]

Rain and 33F with no ice

 

[Snowlover11]

35F and rain in Yonkers.

[gravitylover]

It started raining a while ago but just popped to 33 a few minutes ago. I'm guessing it's a little slick out there but it should get better pretty quickly now.

[wdrag]

Wantage NJ 8S of High Point NJ: 545A report. Freezing drizzle on contact with untreated pavers-driveway (ICY), but all other surfaces just wet at 32.4. Salting has been in progress up here since before 4A. Our early morning low has been 32.2. Dewpoint 31.8. 0.08 liquid since midnight. Walt

 

Added a map of NJ Climate reported temps at about 540A... anywhere where 33 or lower, my guess is the untreated paver-driveway is icy (feet from under), but otherwise all other surfaces at 32.2 or higher are just wet. 

 

This is purely a contact with previously frozen ground problem...  not trees and wires, at least not here. 

[wdrag]

This thread should be unpinned at 9AM when the OKX advisory ends. Not much icing appeared to happen near the city. Truth is I'm unsure what happened (contact icing) except here in nw NJ with the above temp map. 

[Snowlover11]

roads are wet coming home from yonkers but my entire driveway and sidewalk is a sheet of ice.

[wdrag]

Very few reports for this event.  NOT widespread ground truth but am sure in parts of the area, there were slips and falls. Of course ice midnight-6A is not what most winter enthusiasts like to check... especially sleep time.  However, the interior advisory for contact icing on stone surfaces was probably a winner...may have saved a few ER visits-broken wrists etc.  

[wdrag]

The following ASOS METARS nearby NYC reported Trace or slightly more icing overnight...I group (among those I checked)

IJD-Willimantic CT

POU-Poughkeepsie NY

FWN-Sussex NJ

CDW-Caldwell NJ

[IrishRob17]

I had a trace here early this morning, up to 34 now, with 2.5" at the snow stake but my solid snow cover is starting to show some holes in it as it becomes slushy. 

[wdrag]

Thank you for unpinning.  I've added a link for  mPing past  2 hours showing sleet in nw CT, and still;l a little ice reports NNJ. 

https://mping.ou.edu/display/.  That link should loop the past two hours of reports.

 

Go to layers and change to top.  You'll also notice the time in GMT upper right.

 

 

[MANDA]

.17" rainfall.  No icing here.  Temperature only briefly dipped to 32 overnight then rose slowly during bulk of precipitation event.  Currently 40.

[Dark Star]

-0.0001" ice accretion, so far...

[IrishRob17]

2 hours ago, wdrag said:

Thank you for unpinning.  I've added a link for  mPing past  2 hours showing sleet in nw CT, and still;l a little ice reports NNJ. 

https://mping.ou.edu/display/.  That link should loop the past two hours of reports.

 

Go to layers and change to top.  You'll also notice the time in GMT upper right.

 

 

My stone driveway is still a sheet of ice, it's become more evident as the air gets underneath it. The paved areas, decks, cars are free and clear of ice. Up to 36 with .27" thru the tipper. 

[nycwinter]

good thing about the rain it washes away all that terrible road salt people put on sidewalks. which ruins everything your shoes your sneakers.

[gravitylover]

No sidewalks here so that's not a problem 

[Dark Star]

5 hours ago, nycwinter said:

good thing about the rain it washes away all that terrible road salt people put on sidewalks. which ruins everything your shoes your sneakers.

and dogs' feet.  We have become salt crazy.  I understand, litigious society.