Alert archive / New York / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 97, NWS Binghamton, NY

July 30, 1999Broome County, New York

NWS Binghamton, NY issued this severe thunderstorm warning at Jul 30, 1999, 5:40 PM EDT for Broome County, New York. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 30, 1999, 5:40 PM EDT (21:40 UTC)
Expired
Jul 30, 1999, 6:30 PM EDT
In force
50 min
Issued by
NWS Binghamton, NY
Area
Whole counties

County Broome County, NY

What was reported inside it

TimeReportWhereRemark
Jul 30, 6:00 PM EDTThunderstorm WindMaine, NYScattered trees and powerlines were knocked down by strong thunderstorm winds.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.7 hours before the alert went out and 174 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 1999-07-30Temperature 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 1999-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 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
936 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 30, 2:44 PM EDTSevere Thunderstorm WarningBGMSteuben31 min
Jul 30, 2:51 PM EDTSevere Thunderstorm WarningBGMSchuyler, Steuben64 min
Jul 30, 3:46 PM EDTSevere Thunderstorm WarningBGMChemung49 min
Jul 30, 4:14 PM EDTSevere Thunderstorm WarningBGMTioga31 min
Jul 30, 4:48 PM EDTSevere Thunderstorm WarningBGMChenango52 min
Jul 30, 5:05 PM EDTSevere Thunderstorm WarningBGMOtsego50 min
Jul 30, 5:45 PM EDTSevere Thunderstorm WarningBGMChenango50 min
Jul 30, 4:31 PM EDTSevere Thunderstorm WarningBGMBradford49 min
Jul 30, 5:44 PM EDTSevere Thunderstorm WarningBGMWayne61 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.