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


TriPol
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24 minutes ago, JustinRP37 said:

That’s the thing I don’t think I’ve ever seen so many early closings and cancellations for Monday as with this storm. The media has basically made it sound like the apocalypse. I think by mid morning tomorrow we are looking pretty much back to normal. Could be wrong but it doesn’t look like it. 

its the ice justin....there remains a threat of zr. its really nasty out. with the cold temps its a recipe for disaster. i don't want my kids on 287 in that.

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4 minutes ago, weatherpruf said:

its the ice justin....there remains a threat of zr. its really nasty out. with the cold temps its a recipe for disaster. i don't want my kids on 287 in that.

Up here we never switched to sleet or freezing rain. We should be wrapped up by around 1am. Tomorrow the sun may even peak out by 10-12.  

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The New York City area and its nearby suburbs has seen a significant snowfall today. Although parts of the region have transitioned to sleet, widespread snowfall amounts of 6" or above have occurred.

The outcome is largely the result of the system's dynamics, as the warm air came in aloft as per the consensus of the guidance. From yesterday:

Prior to the warming of the mid-levels tomorrow afternoon, soundings showed a strongly saturated dendritic growth zone (DGZ) between –12°C and –17°C. That is almost ideal for producing large, fluffy dendritic flakes. There was also strong lift and high saturation supporting very efficient snow growth and high snow-liquid ratios, especially in areas with stronger banding. In short, for 3-4 hours there could be snowfall rates of 1" per hour and perhaps 2" per hour at times. That's when most of the snow will fall in and around New York City. The visibility could fall under one-quarter mile during the periods of heaviest snow. Thundersnow seems unlikely in most of the area as there isn't a convective signature in the soundings. 

It is these dynamics, not 10:1 snow-liquid ratio maps that tell the story of what continues to look to be a significant snowfall in and around New York City.

During the course of the snowfall, all of New York City's sites (Bridgeport, Central Park, Islip, JFK Airport, LaGuardia Airport, Newark, and White Plains) reported visibilities of 0.25 miles or less. The 1"-2" per hour rates occurred during this period of heavy snow.

IMO, the focus on the dynamics, not varying model solutions largely drove what appear in line to be the more accurate forecasts. Chasing the models from run-to-run created the perception that there was greater uncertainty than what actually was present.  

PNS from 2:06 pm (not final):

764 
NOUS41 KOKX 251906
PNSOKX
CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-260706-

Public Information Statement
National Weather Service New York NY
206 PM EST Sun Jan 25 2026

...SNOWFALL REPORTS...

Location                     Amount    Time/Date       Provider             

...Connecticut...

...Fairfield County...
4 S Greenwich                8.2 in    0117 PM 01/25   Public               
1 SE Norwalk                 7.5 in    1259 PM 01/25   Public               
2 ENE New Canaan             7.0 in    0109 PM 01/25   Trained Spotter      
Bridgeport Airport           6.7 in    0100 PM 01/25   Official NWS Obs     
Bethel                       6.0 in    0111 PM 01/25   Emergency Mngr       
4 NNW New Fairfield          5.3 in    1159 AM 01/25   Trained Spotter      
Bethel                       5.0 in    1215 PM 01/25   Emergency Mngr       
4 SSE Easton                 5.0 in    1249 PM 01/25                        
3 WSW Shelton                5.0 in    1230 PM 01/25   Trained Spotter      
Danbury                      4.6 in    1130 AM 01/25   Amateur Radio        
1 ENE Monroe                 3.7 in    1115 AM 01/25   Trained Spotter      

...Middlesex County...
1 SW Westbrook               4.0 in    1229 PM 01/25   Public               

...New Haven County...
Milford                      5.0 in    0100 PM 01/25   Trained Spotter      
North Madison                5.0 in    0106 PM 01/25   Emergency Mngr       
West Haven                   4.0 in    1240 PM 01/25   Trained Spotter      
Meriden                      3.5 in    1200 PM 01/25   Trained Spotter      
Wallingford                  3.2 in    1205 PM 01/25   Trained Spotter      

...New London County...
3 SSE Gales Ferry            4.0 in    0144 PM 01/25   Public               
2 SSE Ledyard Center         3.2 in    0100 PM 01/25   Trained Spotter      
1 SSW New London             2.8 in    1227 PM 01/25   Cocorahs             

...New Jersey...

...Bergen County...
Leonia                       9.2 in    0141 PM 01/25   Public               
1 NNW Cliffside Park         9.0 in    0133 PM 01/25   Public               
1 N River Vale               9.0 in    0115 PM 01/25   Trained Spotter      
2 NNE Franklin Lakes         7.6 in    1219 PM 01/25   Trained Spotter      
1 SSW River Edge             7.5 in    1235 PM 01/25   Cocorahs             
1 SSE Fair Lawn              7.3 in    0120 PM 01/25                        
1 NNW Cliffside Park         7.2 in    1231 PM 01/25   Public               
1 NE Ridgefield              6.5 in    1250 PM 01/25   Public               
1 S Fair Lawn                5.5 in    1215 PM 01/25   Trained Spotter      
1 WSW Wallington             5.4 in    1123 AM 01/25   Trained Spotter      
Fair Lawn                    4.0 in    1111 AM 01/25   Trained Spotter      

...Essex County...
1 E North Caldwell           9.4 in    0123 PM 01/25   Amateur Radio        
1 NE North Caldwell          9.1 in    0150 PM 01/25   Public               
1 NW Newark                  9.0 in    0147 PM 01/25   Public               
1 W North Caldwell           8.5 in    0100 PM 01/25   Cocorahs             
1 NW Newark                  8.1 in    0102 PM 01/25   Public               
1 WNW Bloomfield             8.0 in    0120 PM 01/25                        
1 NE North Caldwell          8.0 in    1255 PM 01/25                        
1 SE Millburn                6.8 in    0120 PM 01/25   Public               
1 SE Montclair               6.5 in    1153 AM 01/25   Public               

...Hudson County...
1 ENE Jersey City            7.1 in    0107 PM 01/25   Public               
Harrison                     6.0 in    1156 AM 01/25   CO-OP Observer       
1 W Hoboken                  5.1 in    1151 AM 01/25   Trained Spotter      

...Passaic County...
1 S Pompton Lakes            9.5 in    0146 PM 01/25   Trained Spotter      
2 NE Wayne                   8.2 in    1249 PM 01/25   Public               
Passaic                      6.5 in    1205 PM 01/25   Public               

...Union County...
Newark Airport               8.0 in    0100 PM 01/25   Official NWS Obs     
1 SSW Westfield              7.7 in    1232 PM 01/25   Public               
1 NE Union                   7.5 in    0115 PM 01/25   Trained Spotter      
1 WNW Elizabeth              5.2 in    1145 AM 01/25   Public               

...New York...

...Kings County...
Sheepshead Bay               8.1 in    1248 PM 01/25   Public               
2 NNE Bay Ridge              8.0 in    1245 PM 01/25   Public               
1 SSE Williamsburg           6.0 in    1209 PM 01/25   Public               
3 NW Flatbush                5.6 in    1123 AM 01/25   Public               
1 N Bay Ridge                4.0 in    1117 AM 01/25   Public               

...Nassau County...
Matinecock                   9.2 in    1245 PM 01/25   Public               
East Williston               9.1 in    0153 PM 01/25   Public               
1 N Syosset                  8.6 in    0130 PM 01/25   Trained Spotter      
1 E East Meadow              8.0 in    0139 PM 01/25   Public               
1 SW Matinecock              7.0 in    1233 PM 01/25   Public               
1 N Syosset                  6.6 in    1230 PM 01/25   Trained Spotter      
1 ENE Glen Cove              6.0 in    1107 AM 01/25   Public               
1 ENE East Meadow            5.8 in    0110 PM 01/25   Emergency Mngr       
1 WNW Glen Head              5.7 in    1115 AM 01/25   Public               
1 WSW Levittown              5.3 in    1200 PM 01/25   NWS Employee         
Carle Place                  4.9 in    1145 AM 01/25   Amateur Radio        
1 E Searingtown              3.5 in    1100 AM 01/25   Trained Spotter      
Seaford                      3.0 in    1234 PM 01/25   Public               
Roosevelt                    2.5 in    1100 AM 01/25   Trained Spotter      

...New York (Manhattan) County...
Washington Heights           8.3 in    0145 PM 01/25   Public               
Central Park                 7.2 in    0100 PM 01/25   Official NWS Obs     

...Orange County...
1 SSW Middletown             8.2 in    1230 PM 01/25   Fire Dept/Rescue     
1 NNE Chester                7.0 in    1228 PM 01/25   Public               
Highland Mills               7.0 in    1200 PM 01/25   Trained Spotter      
Cornwall on Hudson           6.5 in    1215 PM 01/25   Trained Spotter      
3 SSW Pine Bush              6.0 in    1254 PM 01/25   Public               
Warwick                      6.0 in    1100 AM 01/25   NWS Employee         
Florida                      5.5 in    1125 AM 01/25   Trained Spotter      
Middletown                   5.0 in    1130 AM 01/25   Trained Spotter      
Montgomery                   4.0 in    1107 AM 01/25   Trained Spotter      
Newburgh                     4.0 in    1156 AM 01/25   Trained Spotter      

...Putnam County...
2 W Putnam Valley            7.3 in    0115 PM 01/25   Trained Spotter      
Mahopac                      7.0 in    0135 PM 01/25   Amateur Radio        

...Queens County...
1 W Bellerose                9.0 in    0145 PM 01/25   Trained Spotter      
1 ESE Fresh Meadows          7.1 in    0131 PM 01/25   Public               
NYC/La Guardia               7.1 in    0100 PM 01/25   Official NWS Obs     
2 S Elmhurst                 6.0 in    1255 PM 01/25   Public               
NYC/JFK                      6.0 in    0100 PM 01/25   Official NWS Obs     
2 NNW Greenpoint             4.3 in    1120 AM 01/25   Public               

...Richmond County...
Dongan Hills                 7.8 in    1145 AM 01/25   Public               
2 NE Westerleigh             7.0 in    1205 PM 01/25   Public               

...Rockland County...
Monsey                       10.0 in   0130 PM 01/25   Public               
1 NW Stony Point             10.0 in   0125 PM 01/25   Public               
Thiells                      9.5 in    1245 PM 01/25   Trained Spotter      
1 SE Montebello              8.8 in    0102 PM 01/25   Public               
Suffern                      8.5 in    1229 PM 01/25   Emergency Mngr       
Pearl River                  6.3 in    1130 AM 01/25   Amateur Radio        
New City                     6.1 in    1200 PM 01/25   Trained Spotter      

...Suffolk County...
1 W Nesconset                7.9 in    0102 PM 01/25   Public               
1 N Setauket-East Seta       7.3 in    0130 PM 01/25   NWS Employee         
Copiague                     7.0 in    0125 PM 01/25   Trained Spotter      
1 SW East Northport          7.0 in    0102 PM 01/25   Trained Spotter      
Huntington Station           7.0 in    0135 PM 01/25   Trained Spotter      
1 SSW Miller Place           6.5 in    0100 PM 01/25   Public               
1 ENE Commack                6.0 in    0101 PM 01/25   Broadcast Media      
1 W Hauppauge                6.0 in    1240 PM 01/25   Trained Spotter      
South Huntington             6.0 in    0117 PM 01/25   Broadcast Media      
Islip Airport                5.8 in    0100 PM 01/25   Official NWS Obs     
Deer Park                    5.5 in    1222 PM 01/25   Trained Spotter      
1 ENE Commack                5.0 in    1215 PM 01/25   Broadcast Media      
Mount Sinai                  5.0 in    1203 PM 01/25   CO-OP Observer       
1 N Smithtown                5.0 in    1207 PM 01/25   Public               
Saint James                  4.9 in    1216 PM 01/25   Public               
Upton (NWS Office)           4.8 in    0100 PM 01/25   Official NWS Obs     
3 WNW Riverhead              4.7 in    1252 PM 01/25                        
2 E Plainview                4.5 in    1227 PM 01/25   Public               
Islip Airport                4.0 in    1200 PM 01/25   Official NWS Obs     
3 ENE Sag Harbor             3.7 in    1200 PM 01/25   Public               
1 WNW Jamesport              2.9 in    1204 PM 01/25   Public               
1 SE East Patchogue          2.8 in    1123 AM 01/25   NWS Employee         

...Westchester County...
2 ENE Bedford                8.1 in    0128 PM 01/25   Public               
2 N Mamaroneck               6.5 in    1217 PM 01/25   Public               
Mount Vernon                 6.5 in    1130 AM 01/25   Amateur Radio        
2 ENE Peekskill              6.4 in    1232 PM 01/25   Public               
White Plains                 6.0 in    1130 AM 01/25   Amateur Radio        
Yorktown Heights             6.0 in    1130 AM 01/25   Amateur Radio        
Mamaroneck                   5.5 in    1130 AM 01/25   Amateur Radio        
2 E Ossining                 5.2 in    1121 AM 01/25   Public               
1 NE North Castle            5.0 in    1120 AM 01/25   Public               
Hartsdale                    4.8 in    1130 AM 01/25   Amateur Radio        
&&

 

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Just got in from shoveling a 3rd time, but this was the 2" of mostly sleet that have fallen since around 1 pm (6" worth of 10:1 snow by mass) and it was tough.  So, between 3 and 5 pm we got 1" of pure sleet giving us 2" since 1 pm, when we had 8.3", so we're now at 10.3" of sleet/snow, besting my 10.1" guess.  It's up to 17F and hoping no ZR in the last 0.4-0.5 QPF the HRRR says we'll get (mostly sleet) by midnight, but the HRRR is showing 0.1" ZR.  What a storm!

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1 minute ago, RU848789 said:

Just got in from shoveling a 3rd time, but this was the 2" of mostly sleet that have fallen since around 1 pm (6" worth of 10:1 snow by mass) and it was tough.  So, between 3 and 5 pm we got 1" of pure sleet giving us 2" since 1 pm, when we had 8.3", so we're now at 10.3" of sleet/snow, besting my 10.1" guess.  It's up to 17F and hoping no ZR in the last 0.4-0.5 QPF the HRRR says we'll get (mostly sleet) by midnight, but the HRRR is showing 0.1" ZR.  What a storm!

Do you also measure snow/sleet depth? Just curious how much compacting there has been

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