Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS State College, PA

May 10, 1995Bedford County, Cambria County, Somerset County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 10, 1995, 5:36 PM EDT for Bedford County, Cambria County, Somerset County, Pennsylvania. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
May 10, 1995, 5:36 PM EDT (21:36 UTC)
Expired
May 10, 1995, 6:45 PM EDT
In force
69 min
Issued by
NWS State College, PA
Area
Whole counties

Counties Bedford County, PA, Cambria County, PA, Somerset County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.6 hours before the alert went out and 118 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 1995-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 403 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 1995-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
403 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
53 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 
TTAA00 KCTP 102137
SVRCTP
PAC009-021-111-102245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
536 PM EDT WED MAY 10 1995
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN  PENNSYLVANIA
 
   ...BEDFORD COUNTY...CAMBRIA COUNTY...SOMERSET COUNTY
 
AT 535 PM WEATHER SERVICE RADAR IN STATE COLLEGE DETECTED A LINE OF
SEVERE THUNDERSTORMS EXTENDING FROM INDIANA COUNTY TO JUST SOUTHWEST OF
JOHNSTOWN THEN TO THE MARYLAND BORDER SOUTH OF MEYERSDALE. THE STORMS
ARE MOVING EAST AT 30 MPH. THE STORMS WILL CROSS JOHNSTOWN AROUND 545
PM AND ENTER THE BEDFORD AREA AROUND 6 PM.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATH
ER CONDITIONS.
 
WINTHER

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 4:00 PM EDTSevere Thunderstorm WarningCTPMcKean, Warren60 min
May 10, 5:29 PM EDTSevere Thunderstorm WarningCTPMcKean61 min
May 10, 6:06 PM EDTSevere Thunderstorm WarningCTPClearfield69 min
May 10, 6:07 PM EDTSevere Thunderstorm WarningCTPBlair68 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.