Alert archive / New York / Snow Squall Warnings in 2026

Snow Squall Warning 4, NWS Binghamton, NY

December 31, 202512 counties in New York; Bradford County, Pennsylvania

NWS Binghamton, NY issued this snow squall warning at Dec 31, 2025, 11:20 PM EST for 12 counties in New York; Bradford County, Pennsylvania. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 31, 2025, 11:20 PM EST (04:20 UTC)
Expired
Jan 1, 2026, 12:00 AM EST
In force
40 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon

Counties Broome County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Madison County, NY, Oneida County, NY, Onondaga County, NY, Schuyler County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Bradford County, PA

The radar

The Binghamton radar (KBGM), 42 km from the middle of the area, began a volume at 04:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 4.3 hours before the alert went out and 338 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2026-01-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2026-01-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1256 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Binghamton, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 31, 9:12 PM ESTSnow Squall WarningBGMCayuga, Schuyler, Seneca, Steuben, Yates48 min
Dec 31, 10:00 PM ESTSnow Squall WarningBGMCayuga, Madison, Onondaga, Schuyler, Seneca, Steuben and 1 more45 min
Dec 31, 10:39 PM ESTSnow Squall WarningBGMCayuga, Chemung, Cortland, Madison, Oneida, Onondaga and 5 more51 min
Dec 31, 11:50 PM ESTSnow Squall WarningBGMBroome, Chemung, Chenango, Cortland, Delaware, Madison and 3 more55 min
Jan 1, 12:40 AM ESTSnow Squall WarningBGMBroome, Chenango, Delaware, Otsego65 min
Jan 1, 1:53 AM ESTSnow Squall WarningBGMBroome, Delaware, Sullivan52 min
Jan 1, 1:55 AM ESTWinter Storm WatchBGMOneida, Onondaga11 hr
Jan 1, 2:45 AM ESTSnow Squall WarningBGMSullivan45 min
Jan 1, 12:27 PM ESTLake Effect Snow WarningBGMMadison, Oneida, Onondaga56 hr
Jan 1, 4:42 PM ESTWinter Weather AdvisoryBGMMadison, Oneida19 hr

Nearby

Snow Squall Warnings in New York, 2026Snow Squall Warnings in Pennsylvania, 2026Every snow squall warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.