Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 14, NWS Pittsburgh, PA

April 18, 1995Beaver County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Apr 18, 1995, 9:45 PM EDT for Beaver County, Pennsylvania. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 18, 1995, 9:45 PM EDT (01:45 UTC)
Expired
Apr 18, 1995, 10:45 PM EDT
In force
60 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Beaver County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 1.8 hours before the alert went out and 37 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 00:00Z on 1995-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 236 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 00:00Z on 1995-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 233 square meters per square second.19395878Sfc1 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
236 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1118 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
233 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

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 Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 18, 9:42 PM EDTSevere Thunderstorm WarningPBZButler63 min
Apr 18, 8:42 PM EDTSevere Thunderstorm WarningPBZCarroll, Tuscarawas63 min
Apr 18, 8:42 PM EDTSevere Thunderstorm WarningPBZColumbiana63 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1995Every severe thunderstorm warning in 1995

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.