Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 50, NWS Cleveland, OH

July 30, 1988McKean County, Warren County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 30, 1988, 2:57 PM EDT for McKean County, Warren County, Pennsylvania. It was in force for 63 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, 1988, 2:57 PM EDT (18:57 UTC)
Expired
Jul 30, 1988, 4:00 PM EDT
In force
63 min
Issued by
NWS Cleveland, OH
Area
Whole counties

Counties McKean County, PA, Warren County, PA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 30, 3:30 PM EDTThunderstorm Wind 0Warren, PA

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.0 hours before the alert went out and 126 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 1988-07-30Temperature 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, Buffalo Intl Airport, NY at 12:00Z on 1988-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
804 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1334 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
25 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 Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 30, 3:14 PM EDTSevere Thunderstorm WarningCLEMahoning31 min
Jul 30, 3:28 PM EDTSevere Thunderstorm WarningCLEColumbiana32 min
Jul 30, 3:33 PM EDTSevere Thunderstorm WarningCLELawrence57 min
Jul 30, 4:26 PM EDTSevere Thunderstorm WarningCLECrawford, Venango64 min
Jul 30, 5:03 PM EDTSevere Thunderstorm WarningCLECrawford, Erie57 min
Jul 30, 6:17 PM EDTSevere Thunderstorm WarningCLECameron, McKean58 min
Jul 30, 6:26 PM EDTSevere Thunderstorm WarningCLECameron, Elk, McKean64 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1988Every severe thunderstorm warning in 1988

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.