Alert archive / Pennsylvania / Tornado Warnings in 1996

Tornado Warning 5, NWS State College, PA

June 24, 1996Cambria County, Pennsylvania

NWS State College, PA issued this tornado warning at Jun 24, 1996, 3:25 PM EDT for Cambria County, Pennsylvania. It was in force for 50 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 24, 1996, 3:25 PM EDT (19:25 UTC)
Expired
Jun 24, 1996, 4:15 PM EDT
In force
50 min
Issued by
NWS State College, PA
Area
Whole counties

County Cambria County, PA

The radar

The State College radar (KCCX), 76 km from the middle of the area, began a volume at 19:28 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.

What was reported inside it

TimeReportWhereRemark
Jun 24, 3:30 PM EDTThunderstorm WindWestmont, PA
Jun 24, 3:35 PM EDTThunderstorm WindJohnstown, PA
Jun 24, 3:45 PM EDTThunderstorm WindSt Michael, PA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.4 hours before the alert went out and 205 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, Washington/Dulle, VA at 12:00Z on 1996-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1996-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
93 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 241925
TORCTP
PAC021-242015-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
325 PM EDT MON JUN 24 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  415 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  PENNSYLVANIA
 
   ...CAMBRIA COUNTY
 
AT 325 PM EDT STATE COLLEGE DOPPLER RADAR INDICATED A STRONGLY ROTATING
THUNDERSTORM APPROACHING THE JOHNSTOWN AREA. THE STORM WILL MOVE ACROSS
JOHNSTOWN BY 330 PM AND CONTINUE EAST TO EAST CONEMAUGH BEFORE 345 PM.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING.  AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH
OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jun 24, 1:55 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jun 24, 1:55 PM EDT, 1 hour 30 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
200 PM EDT MON JUN 24 1996

...SVR TSTM WATCH MOST OF CNTRL PA THIS AFTN/EVE FLASH FLOOD
WATCH CONTINUES...

MODELS SHOW TONGUE WARM MOIST UNSTABLE AIR OVER REGION THRU 7 PM
TONIGHT.  A LOW LEVEL WARM FRONT IS SLOWLY MVG NEWD ACROSS PA
THIS AFTN.  THE REMANENT CONVECTION FROM OVERNIGHT HAS REFIRED
OVER SERN PA WITH SOME SUPERCELL LOOKING CELLS OVER ADAMS WHICH
WAS MOVING INTO NRN MARYLAND.

SATELLITE IMAGERY HAS SHOWN WHAT APPEARS TO BE A BACK BUILDING
LINE MOVING ACROSS PA THIS AM INTO EARLY AFTN.  BACK BUILDING
LINES TYPICALLY PRODUCE SEVERE WEATHER AND FORM IN ENVIRONMENTS
SIMILAR TO THOSE WHICH PRODUCE SUPERCELLS.  FORTUNATELY...THE
MOST ACTIVE PART OF THE BACK BUILDING LINE IS PRESENTLY MOVING
OVER NRN MARYLAND.

HOWEVER...A COLD FRONT AND A TONGUE OF WARM MOIST AIR WILL MOVE
OVER THE STATE.  ANOTHER LINE WILL LIKELY FORM AND MOVE WEST TO
EAST ACROSS THE STATE.  MOISTURE...CONV...AND LL AGEO WINDS/CONV
OF...SUGGEST MOST SVRE TSTMS WILL FORM THIS AFTN.  LOOKS LIKE
BEST CHC WILL BE OVER SRN PORTIONS OF STATE.  EXTREMELY HIGH DEW
POINT AIR MVG IN BEHIND WARM FRONT SUGGEST THAT TORRENTIAL
RAINFALL IS POSSIBLE.

COLD FRONT AND DRIER AIR WILL MOVE OVER THE STATE EARLY TONIGHT.
MODELS SHOW INC IN WRLY FLOW AND SHARP DEC IN RH BY 00 UTC OVER
WRN SECTIONS.  BY MIDNIGHT VSBY SHOULD BE QUITE GOOD OVER WRN
THIRD OF STATE AND IMPROVING OVER CNTRL.  ANY FOG BEHIND TSTMS
ACTIVITY IN ERN SECTIONS WILL DISSIPATE OVERNIGHT...FOG SHOULD
GONE BE WELL BEFORE SUNRISE IN MOST LOCATIONS.  SHOULD BE A NICE
START TO TUES AS COOLER DRIER AIR MOVES OVER REGION.  MOS SHUD BE
CLOSE TO MAX TEMPS TUES.

GRUMM

In the hours before

Special weather statement, Jun 24, 11:56 AM EDT, 3 hours 29 minutes before
PAZ004-005-010>012-017>019-024>028-033>036-041-045-046-049>052-
056-057-063>065-242200-
SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1155 AM EDT MON JUN 24 1996

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM FOR
WARREN AND MCKEAN COUNTIES...
...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 PM FOR
MOST OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR
WARREN AND MCKEAN COUNTIES.

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 2 PM FOR THE
FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY
REGION:

ELK... CAMERON... CLINTON...  LYCOMING... CLEARFIELD... CENTRE...

UNION... SNYDER... NORTHUMBERLAND... MONTOUR... CAMBRIA...

BLAIR... HUNTINGDON... MIFFLIN... JUNIATA... PERRY... DAUPHIN...

SOMERSET... BEDFORD... FULTON... FRANKLIN... CUMBERLAND... ADAMS

AND YORK.

A SEVERE THUNDERSTORM WATCRH MEANS THAT THUNDERSTORMS HAVE THE
POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND HAIL 3/4
INCHES OR GREATER IN AND CLOSE TO THE WATCH AREA.

NICOSIA
Local storm report, Jun 24, 2:06 PM EDT, 1 hour 19 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
205 PM EDT MON JUN 24 1996

TIME EDT   ...CITY LOCATION..........ST   ...EVENT/REMARKS
           ...COUNTY LOCATION........

0145 PM    5 S. GETTYSBURG           PA   WIND DAMAGE
06/24/96   ADAMS                          CHIMNEY BLOWN OVER
                                          TREES DOWN TOP OF
                                          SILO BLOWN OFF

DUNHAM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 12:12 PM EDTSevere Thunderstorm WarningCTPFranklin, Fulton63 min
Jun 24, 12:12 PM EDTSevere Thunderstorm WarningCTPCumberland63 min
Jun 24, 12:27 PM EDTFlash Flood WarningCTPBedford93 min
Jun 24, 12:27 PM EDTSevere Thunderstorm WarningCTPBedford93 min
Jun 24, 12:36 PM EDTSevere Thunderstorm WarningCTPAdams, York69 min
Jun 24, 3:05 PM EDTSevere Thunderstorm WarningCTPCambria, Somerset70 min
Jun 24, 3:50 PM EDTSevere Thunderstorm WarningCTPBedford, Blair70 min
Jun 24, 3:54 PM EDTFlash Flood WarningCTPBedford, Blair, Cambria, Somerset4 hr
Jun 24, 4:14 PM EDTSevere Thunderstorm WarningCTPSomerset61 min
Jun 24, 4:30 PM EDTSevere Thunderstorm WarningCTPFulton, Huntingdon60 min
Jun 24, 5:08 PM EDTSevere Thunderstorm WarningCTPFranklin67 min
Jun 24, 5:27 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland63 min
Jun 24, 5:54 PM EDTSevere Thunderstorm WarningCTPYork66 min
Jun 24, 6:46 PM EDTSevere Thunderstorm WarningCTPCumberland, Dauphin, Perry59 min
Jun 24, 7:59 PM EDTFlash Flood WarningCTPLebanon3 hr

Nearby

Tornado Warnings in Pennsylvania, 1996Every tornado warning in 1996Tornadoes in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.