Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 207, NWS State College, PA

August 2, 1995Centre County, Clearfield County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Aug 2, 1995, 10:27 PM EDT for Centre County, Clearfield County, Pennsylvania. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Aug 2, 1995, 10:27 PM EDT (02:27 UTC)
Expired
Aug 2, 1995, 11:30 PM EDT
In force
63 min
Issued by
NWS State College, PA
Area
Whole counties

Counties Centre County, PA, Clearfield County, PA

The radar

The State College radar (KCCX), 13 km from the middle of the area, began a volume at 02:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 2.5 hours before the alert went out and 176 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 1995-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1761 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 1995-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939Sfc1 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
1761 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1217 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCTP 030231 RRA
SVRCTP
PAC027-033-030330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1027 PM EDT WED AUG 2 1995
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN  PENNSYLVANIA
 
   ...WESTERN CENTRE COUNTY...EASTERN CLEARFIELD COUNTY
 
AT 1025 PM WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM IN
SOUTHEASTERN CLEARFIELD COUNTY NEAR IRVONA. THIS STORM WILL MOVE
EAST-NORTHEAST AND REACH THE TOWN OF PHILIPSBURG IN CENTRE COUNTY
AROUND 1045 PM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
WINTHER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 2, 8:56 PM EDT, 1 hour 31 minutes earlier.

Area forecast discussion, Aug 2, 8:56 PM EDT, 1 hour 31 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
845 PM EDT WED AUG 2 1995

TRW SLOWLY FADING...EXPECT ACTIVITY TO CONTINUE TO DECREASE.

ADAP CHARTS SHOW FRONTAL BNDRY NICELY WITH BEST SFC MOISTURE CONV
ACROSS NE PA ATTM. THINK FLOOD WATCH FOR SOMERSET AND CAMBRIA
COUNTIES CAN BE DROPED NXT PACKAGE.

BEST MOIST CONV LIFTS N INTO NEW YORK OVERNIGHT LEAVING CENTRAL
PA WITH THE THREE H'S FOR THU.

KEEPING BUSY SO THATS ALL FOR NOW...

WINTHER/LOMBARDY

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; radar from the NEXRAD Level II archive.