Alert archive / Pennsylvania / Tornado Warnings in 1996

Tornado Warning 1, NWS State College, PA

May 11, 1996Schuylkill County, Pennsylvania

NWS State College, PA issued this tornado warning at May 11, 1996, 3:17 PM EDT for Schuylkill County, Pennsylvania. It was in force for 43 min. 1 report 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
May 11, 1996, 3:17 PM EDT (19:17 UTC)
Expired
May 11, 1996, 4:00 PM EDT
In force
43 min
Issued by
NWS State College, PA
Area
Whole counties

County Schuylkill County, PA

What was reported inside it

TimeReportWhereRemark
May 11, 3:30 PM EDTTornado F1Pottsville, 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, 7.3 hours before the alert went out and 220 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 1996-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Washington/Dulle, VA at 12:00Z on 1996-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
3 J/kg
Mixed-layer CIN
-182 J/kg
Mixed-layer LCL
1606 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
23 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 111917
TORCTP
PAC107-112000-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
317 PM EDT SAT MAY 11 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  400 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  PENNSYLVANIA
 
   ...SCHUYLKILL COUNTY
 
AT 310 PM EDT DOPPLER RADAR SHOWED A ROTATING THUNDERSTORM NEAR
SHENANDOAH WHICH COULD BE PRODUCING A TORNADO. A SPOTTER REPORTED ONE
AND 1/2 INCH HAIL IN THE STORM IN MT CARMEL AND THE STORM WAS ROTATING.
 
THE STORM WILL MOVE EAST TO NEAR MAHONOY CITY BEFORE 330 PM.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.

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 May 11, 10:15 AM EDT, 5 hours 2 minutes earlier.

Area forecast discussion, May 11, 10:15 AM EDT, 5 hours 2 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1015 AM EDT SAT MAY 11 1996

FLOOD WATCHES LOOK GOOD.   12Z SURFACE ANAL SHOWED THE FRONT
EXTENDING FROM BGM SOUTHWEST TO PIT WITH A WEAK LOW CENTER JUST
SOUTHWEST OF PIT.  HEAVY RAIN TRACKING OUT OF OHIO INTO THE
NORTHERN MOUNTAINS OF PA.  YNG HAD .95 IN PAST 6 HOURS IN
FAVORABLE LOCATION TO THE EAST OF THE UPPER SHORT WAVE AND JUST
NORTH OF THE WEAK SURFACE LOW.  WE ALSO HAD A SKYWARN REPORT OF
RAIN OF .80 IN KANE SINE 7 AM.  RAIN SHOULD CONTINUE TO PROGRESS
EAST AND NORTHEAST BEHIND THE FRONT AS THE UPPER WAVE MOVES EAST
OUT OF OHIO.

CTP RADAR DOWN AWAITING PART.

DUNHAM

In the hours before

Local storm report, May 11, 10:43 AM EDT, 4 hours 34 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1042 AM EDT SAT MAY 11 1996

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

0956 AM    LUDLOW                    PA   FLOOD
05/11/96   WARREN                         STREAM FLOODING ALONG
                                          RTE 6 NEAR LUDLOW

1038 AM    SHEFFIELD                 PA   FLOOD
05/11/96   WAR\REN                         BASEMENTS BEING PUMPED
                                          IN SHEFFIELD.

DUNHAM
Special weather statement, May 11, 11:46 AM EDT, 3 hours 31 minutes before
PAZ056>059-063>066-112300-

SPECIAL WEATHER STATEMENT - SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1145 AM EDT SAT MAY 11 1996

THE STORMS PREDICTION CENTER IN KANSAS CITY SAYS THERE IS A SLIGHT RISK OF SEVERE
WEATHER THIS AFTERNOON AND EVENING ACROSS PORTIONS OF EASTERN PENNSYLVANIA
INCLUDING THE LOWER SUSQUEHANNA VALLEY.

A SLOW MOVING COLD FRONT WILL CROSS PENNSYLVANIA TODAY...REACHING THE LOWER
SUSQUEHANNA VALLEY LATE IN T\HE AFTERNOON.  THIS FRONT WILL TRIGGER SHOWERS AND
THUNDERSTORMS.  SOME OF THE THUNDERSTORMS MAY CONTAIN STRONG WINDS AND HAIL.

SKYWARN SPOTTER NETWORKS MAY NEED TO BE ACTIVATED LATER TODAY OR THIS EVENING.

JUNG
Special weather statement, May 11, 2:37 PM EDT, 40 minutes before
PAZ037-041-042-046-049>053-056>059-063>066-120000-

SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE STATE COLLEGE PA
230 PM EDT SAT MAY 11 1996

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE
UNTIL 800 PM FOR THE MIDDLE AND LOWER SUSQUEHANNA VALLEY...AS WELL AS PORTIONS
OF THE NORTHERN TIER OF PENNSYLVANIA.  THE COUNTIES INCLUDED IN THE WATCH ARE:

TIOGA... LYCOMING... SULLIVAN... UNION... SNYDER... NORTHUMBERLAND... MONTOUR...
COLUMBIA... SCHUYLKILL... PERRY... CUMBERLAND... DAUPHIN... LEBANON... ADAMS...
YORK AND LANCASTER.

A SLOW MOVING COLD FRONT WILL CROSS THE STATE LATE THIS AFTERNOON AND EVENING.
SHOWERS AND THUNDERSTORMS WILL DEVELOP ALONG AND AHEAD OF THE FRONT.  SOME OF THE
THUNDERSTORMS MAY BE SEVERE OVER THE MIDDLE AND LOWER SUSQUEHANNA VALLEY.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE< FAVORABLE FOR SEVERE
THUNDERSTORMS IN AND NEAR THE WATCH AREA.  PERSONS IN THESE AREAS SHOULD BE ON
THE ALERT FOR THREATENING WEATHER...AND LISTEN FOR FURTHER STATEMENTS AND
POSSIBLE WARNINGS.

JUNG

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 8:55 PM EDTFlash Flood WarningCTPWarren3 hr
May 11, 12:40 PM EDTFlash Flood WarningCTPElk, McKean, Warren5 hr
May 11, 12:40 PM EDTFlash Flood WarningCTPCameron, Potter5 hr
May 11, 1:48 PM EDTFlash Flood WarningCTPTioga4 hr
May 11, 1:51 PM EDTSevere Thunderstorm WarningCTPJuniata, Snyder54 min
May 11, 2:01 PM EDTSevere Thunderstorm WarningCTPFranklin59 min
May 11, 2:04 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland56 min
May 11, 2:04 PM EDTSevere Thunderstorm WarningCTPPerry56 min
May 11, 2:17 PM EDTSevere Thunderstorm WarningCTPNorthumberland58 min
May 11, 2:33 PM EDTSevere Thunderstorm WarningCTPDauphin, York87 min
May 11, 2:44 PM EDTSevere Thunderstorm WarningCTPColumbia, Schuylkill61 min
May 11, 2:56 PM EDTSevere Thunderstorm WarningCTPLancaster, Lebanon94 min

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.