Alert archive / New York / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 39, NWS Binghamton, NY

July 6, 1999Delaware County, New York

NWS Binghamton, NY issued this severe thunderstorm warning at Jul 6, 1999, 4:27 PM EDT for Delaware County, New York. It was in force for 63 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
Jul 6, 1999, 4:27 PM EDT (20:27 UTC)
Expired
Jul 6, 1999, 5:30 PM EDT
In force
63 min
Issued by
NWS Binghamton, NY
Area
Whole counties

County Delaware County, NY

The radar

The Binghamton radar (KBGM), 84 km from the middle of the area, began a volume at 20:31 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, 8.5 hours before the alert went out and 108 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 1999-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1226 joules per kilogram.LCLLFCEL10008507005003002001001 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 1999-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 square meters per square second.193958Sfc1 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
1226 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 12:15 PM EDTSevere Thunderstorm WarningBGMCayuga, Onondaga60 min
Jul 6, 12:28 PM EDTSevere Thunderstorm WarningBGMMadison, Oneida77 min
Jul 6, 3:03 PM EDTSevere Thunderstorm WarningBGMChenango62 min
Jul 6, 3:29 PM EDTSevere Thunderstorm WarningBGMDelaware, Otsego61 min
Jul 6, 6:36 PM EDTSevere Thunderstorm WarningBGMBroome49 min
Jul 6, 6:39 PM EDTSevere Thunderstorm WarningBGMChemung46 min
Jul 6, 6:49 PM EDTSevere Thunderstorm WarningBGMChenango46 min
Jul 6, 6:54 PM EDTSevere Thunderstorm WarningBGMTioga46 min
Jul 6, 6:57 PM EDTSevere Thunderstorm WarningBGMDelaware63 min
Jul 6, 7:22 PM EDTSevere Thunderstorm WarningBGMBroome63 min
Jul 6, 7:42 PM EDTSevere Thunderstorm WarningBGMChenango63 min
Jul 6, 7:26 PM EDTSevere Thunderstorm WarningBGMBradford64 min
Jul 6, 7:36 PM EDTSevere Thunderstorm WarningBGMSusquehanna64 min

Nearby

Severe Thunderstorm Warnings in New York, 1999Every severe thunderstorm warning in 1999

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.