Alert archive / New York / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 74, NWS Buffalo, NY

September 3, 2002Erie County, Niagara County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Sep 3, 2002, 12:04 PM EDT for Erie County, Niagara County, New York. It was in force for 26 min. 2 reports 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
Sep 3, 2002, 12:04 PM EDT (16:04 UTC)
Expired
Sep 3, 2002, 12:30 PM EDT
In force
26 min
Issued by
NWS Buffalo, NY
Area
Counties, with a storm outline in the text

Counties Erie County, NY, Niagara County, NY

The radar

The Buffalo radar (KBUF), 2 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.

What was reported inside it

TimeReportWhereRemark
Sep 3, 12:13 PM EDTHail 0.75Niagara Falls, NY
Sep 3, 12:15 PM EDTHail 0.75Grand Island, NY

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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 4.1 hours before the alert went out and 5 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, Buffalo Intl Airport, NY at 12:00Z on 2002-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 574 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2002-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 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
574 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1161 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 12:04 PM EDTSpecial Marine WarningBUF26 min
Sep 3, 12:06 PM EDTSevere Thunderstorm WarningBUFErie, Niagara24 min
Sep 3, 12:58 PM EDTSpecial Marine WarningBUF62 min
Sep 3, 12:58 PM EDTSpecial Marine WarningBUF62 min
Sep 3, 2:18 PM EDTSevere Thunderstorm WarningBUFWyoming27 min
Sep 3, 2:54 PM EDTSpecial Marine WarningBUF51 min
Sep 3, 3:08 PM EDTSevere Thunderstorm WarningBUFLivingston, Wyoming67 min
Sep 3, 3:11 PM EDTSevere Thunderstorm WarningBUFAllegany, Cattaraugus64 min
Sep 3, 3:53 PM EDTSpecial Marine WarningBUF52 min
Sep 3, 4:19 PM EDTSevere Thunderstorm WarningBUFOntario26 min
Sep 3, 4:41 PM EDTSevere Thunderstorm WarningBUFOswego64 min
Sep 3, 4:52 PM EDTSpecial Marine WarningBUF38 min
Sep 3, 5:47 PM EDTSevere Thunderstorm WarningBUFOswego58 min
Sep 3, 6:33 PM EDTSpecial Marine WarningBUF42 min

Nearby

Severe Thunderstorm Warnings in New York, 2002Every severe thunderstorm warning in 2002

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; radar from the NEXRAD Level II archive.