Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 124, NWS State College, PA

August 12, 1994Franklin County, Huntingdon County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Aug 12, 1994, 6:15 PM EDT for Franklin County, Huntingdon County, Pennsylvania. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Aug 12, 1994, 6:15 PM EDT (22:15 UTC)
Expired
Aug 12, 1994, 7:00 PM EDT
In force
45 min
Issued by
NWS State College, PA
Area
Whole counties

Counties Franklin County, PA, Huntingdon County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.3 hours before the alert went out and 193 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 1994-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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 1994-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 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
8 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
1046 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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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 State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 5:21 PM EDTSevere Thunderstorm WarningCTPHuntingdon54 min
Aug 12, 6:53 PM EDTSevere Thunderstorm WarningCTPFranklin, Huntingdon67 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1994Every severe thunderstorm warning in 1994

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.