Alert archive / New York / Severe Thunderstorm Watches in 1997

Severe Thunderstorm Watch 526

June 25, 199726 counties in New York; 11 counties in Pennsylvania

The Storm Prediction Center issued this severe thunderstorm watch at Jun 25, 1997, 6:30 PM EDT for 26 counties in New York; 11 counties in Pennsylvania. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 25, 1997, 6:30 PM EDT (22:30 UTC)
Expired
Jun 26, 1997, 12:00 AM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 37 counties

Allegany County, NY, Broome County, NY, Cattaraugus County, NY, Cayuga County, NY, Chautauqua County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Erie County, NY, Genesee County, NY, Livingston County, NY, Madison County, NY, Monroe County, NY, Niagara County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Orleans County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Wyoming County, NY, Yates County, NY, Bradford County, PA, Crawford County, PA, Erie County, PA, Lackawanna County, PA, McKean County, PA, Potter County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Warren County, PA, Wyoming County, PA

The radar

The Buffalo radar (KBUF), 40 km from the middle of the area, began a volume at 22:31 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.

Warnings issued inside it

11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 25, 6:38 PM EDTSevere Thunderstorm WarningCTPMcKean67 min
Jun 25, 7:10 PM EDTSevere Thunderstorm WarningCTPWarren20 min
Jun 25, 7:24 PM EDTFlash Flood WarningBUFChautauqua76 min
Jun 25, 7:24 PM EDTSevere Thunderstorm WarningBUFChautauqua76 min
Jun 25, 7:38 PM EDTFlash Flood WarningCTPWarren4 hr
Jun 25, 7:45 PM EDTSevere Thunderstorm WarningCTPWarren60 min
Jun 25, 7:56 PM EDTSevere Thunderstorm WarningCLECrawford64 min
Jun 25, 8:12 PM EDTSevere Thunderstorm WarningCTPMcKean63 min
Jun 25, 8:33 PM EDTFlash Flood WarningCLECrawford117 min
Jun 25, 8:44 PM EDTTornado WarningCTPMcKean31 min
Jun 25, 9:11 PM EDTSevere Thunderstorm WarningCTPPotter, Tioga64 min

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.5 hours before the alert went out and 292 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, Pittsburgh, PA at 12:00Z on 1997-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 804 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, Pittsburgh, PA at 12:00Z on 1997-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
804 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1080 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

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.

Nearby

Severe Thunderstorm Watches in New York, 1997Severe Thunderstorm Watches in Pennsylvania, 1997Every severe thunderstorm watch in 1997

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.