Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 2, NWS Pittsburgh, PA

April 4, 1995Cambria County, Clearfield County, Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Apr 4, 1995, 9:53 AM EDT for Cambria County, Clearfield County, Pennsylvania. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Apr 4, 1995, 9:53 AM EDT (13:53 UTC)
Expired
Apr 4, 1995, 11:00 AM EDT
In force
67 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Cambria County, PA, Clearfield County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 1.9 hours before the alert went out and 133 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 1995-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 75 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 1995-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897117136156Sfc1 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
75 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
757 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS01 KCTP 041353 RRA
SVRCTP
PAC021-033-041500-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
953 AM EDT TUE APR 4 1995
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN  PENNSYLVANIA
 
   ...CAMBRIA COUNTY...CLEARFIELD COUNTY
 
AT 950 AM...DOPPLER RADAR IN STATE COLLEGE SHOWED A LINE OF SEVERE
THUNDERSTORMS EXTENDING FROM NORTHERN CLEARFIELD COUNTY JUST WEST OF
CLEARFIELD... SOUTHWEST INTO INDIANA COUNTY TO JUST NEAR INDIANA. THIS
LINE OF THUNDERSTORMS IS MOVING TO THE EAST AT 30 MPH. THIS LINE OF
THUNDERSTORMS HAS A HISTORY OF PRODUCING HAIL AND WIND GUSTS
OVER 60 MPH.  THE THUNDERSTORMS WILL MOVE INTO CLEARFIELD BY 1000 AM...
AND JOHNSTOWN BY AROUND 1015 AM.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
JUNG/LACORTE
 
&

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 4, 9:50 AM EDTSevere Thunderstorm WarningPBZIndiana, Jefferson55 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.