Alert archive / New York / Snow Squall Warnings in 2025

Snow Squall Warning 39, NWS Binghamton, NY

December 4, 2025Cortland County, New York

NWS Binghamton, NY issued this snow squall warning at Dec 4, 2025, 11:02 AM EST for Cortland County, New York. It was in force for 28 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 4, 2025, 11:02 AM EST (16:02 UTC)
Expired
Dec 4, 2025, 11:30 AM EST
In force
28 min
Issued by
NWS Binghamton, NY
Area
Storm-based polygon
Damage threat
Significant

County Cortland County, NY

The radar

The Binghamton radar (KBGM), 45 km from the middle of the area, began a volume at 16:03 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

Albany, NY (KALY), launched 12:00Z, 4.0 hours before the alert went out and 184 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, Albany, NY at 12:00Z on 2025-12-04Temperature 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, Albany, NY at 12:00Z on 2025-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939587897117136156Sfc1 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
988 m above ground
0-6 km bulk shear
95 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
122 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 4, 10:46 AM ESTSnow Squall WarningBGMCayuga, Chenango, Cortland, Tompkins29 min
Dec 4, 11:28 AM ESTSnow Squall WarningBGMBroome, Chenango, Cortland, Tioga32 min
Dec 4, 12:00 PM ESTSnow Squall WarningBGMBroome, Chenango, Delaware, Otsego30 min
Dec 4, 12:25 PM ESTSnow Squall WarningBGMBroome, Chenango, Delaware, Otsego35 min
Dec 4, 4:35 PM ESTSnow Squall WarningBGMDelaware, Otsego25 min

Nearby

Snow Squall Warnings in New York, 2025Every snow squall warning in 2025

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.