Alert archive / Pennsylvania / Tornado Warnings in 2014

Tornado Warning 7, NWS State College, PA

June 11, 2014Clearfield County, Elk County, Pennsylvania

NWS State College, PA issued this tornado warning at Jun 11, 2014, 8:20 PM EDT for Clearfield County, Elk County, Pennsylvania. It was in force for 25 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 11, 2014, 8:20 PM EDT (00:20 UTC)
Expired
Jun 11, 2014, 8:45 PM EDT
In force
25 min
Issued by
NWS State College, PA
Area
Storm-based polygon

Counties Clearfield County, PA, Elk County, PA

The radar

The State College radar (KCCX), 47 km from the middle of the area, began a volume at 00:22 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 11, 8:20 PM EDTTSTM WND DMG4 N Grampian, PAPOSSIBLE TORNADO. NUMEROUS TREES DOWN ACROSS GREENVILLE PIKE SR 4005 .

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 00:00Z, 0.3 hours before the alert went out and 162 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 2014-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2014-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1322 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
173 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.

731 
WFUS51 KCTP 120020
TORCTP
PAC033-047-120045-
/O.NEW.KCTP.TO.W.0007.140612T0020Z-140612T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
820 PM EDT WED JUN 11 2014

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN ELK COUNTY IN NORTH CENTRAL PENNSYLVANIA...
  NORTHWESTERN CLEARFIELD COUNTY IN CENTRAL PENNSYLVANIA...

* UNTIL 845 PM EDT
    
* AT 819 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR ROCKTON...AND MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PENFIELD...ROCKTON...FORCE...BENEZETTE...PARKER DAM STATE PARK...
  S.B. ELLIOT STATE PARK...MEDIX RUN...WEEDVILLE AND GRAMPIAN.

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 104 AND 115.

THIS ALSO INCLUDES THE FOLLOWING HIGHWAYS...
 ROUTE 219 BETWEEN GRAMPIAN AND NORTH OF GRAMPIAN.
 ROUTE 322 BETWEEN ROCKTON AND WEST OF CLEARFIELD.
 STATE ROAD 153 BETWEEN NEAR S.B. ELLIOT STATE PARK AND PENFIELD.
 STATE ROAD 255 BETWEEN PENFIELD AND NEAR FORCE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

THIS CLUSTER OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4130 7823 4127 7823 4094 7863 4096 7868
      4101 7874 4140 7844
TIME...MOT...LOC 0019Z 216DEG 40KT 4105 7861 

$$

LAMBERT
1 follow-up statement
432 
WWUS51 KCTP 120034
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
834 PM EDT WED JUN 11 2014

PAC033-047-120045-
/O.CON.KCTP.TO.W.0007.000000T0000Z-140612T0045Z/
ELK PA-CLEARFIELD PA-
834 PM EDT WED JUN 11 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR
SOUTHEASTERN ELK AND NORTH CENTRAL CLEARFIELD COUNTIES...
    
AT 834 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED OVER PARKER
DAM STATE PARK...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
FORCE...BENEZETTE...PARKER DAM STATE PARK...S.B. ELLIOT STATE PARK...
MEDIX RUN AND WEEDVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

THIS CLUSTER OF THUNDERSTORMS IS CAPABLE OF PRODUCING TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4130 7823 4127 7823 4109 7850 4111 7856
      4115 7858 4140 7844
TIME...MOT...LOC 0034Z 215DEG 38KT 4118 7849 

$$

LAMBERT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 8:26 PM EDTSevere Thunderstorm WarningCTPBlair, Cambria, Cameron, Centre, Clearfield, Clinton and 2 more64 min
Jun 11, 8:47 PM EDTSevere Thunderstorm WarningCTPHuntingdon, Juniata, Mifflin37 min
Jun 11, 9:35 PM EDTSpecial Weather StatementCTPClinton, Potter, Tioga25 min
Jun 11, 10:21 PM EDTSpecial Weather StatementCTPBlair39 min
Jun 11, 10:31 PM EDTSpecial Weather StatementCTPSchuylkill44 min
Jun 11, 10:47 PM EDTAreal Flood AdvisoryCTPCentre, Huntingdon118 min
Jun 11, 11:26 PM EDTAreal Flood AdvisoryCTPSchuylkill2 hr
Jun 12, 1:29 AM EDTAreal Flood AdvisoryCTPBedford, Blair, Cambria, Huntingdon, Somerset3 hr
Jun 12, 4:18 AM EDTFlash Flood WatchCTPAdams, Bedford, Blair, Cambria, Centre, Clearfield and 13 more20 hr
Jun 12, 5:08 AM EDTAreal Flood AdvisoryCTPBedford, Blair, Cambria, Huntingdon, Somerset4 hr
Jun 12, 2:24 PM EDTSpecial Weather StatementCTPFranklin51 min
Jun 12, 2:36 PM EDTAreal Flood AdvisoryCTPFranklin, Juniata, Perry3 hr
Jun 12, 2:55 PM EDTFlash Flood WarningCTPFranklin, Juniata, Perry3 hr
Jun 12, 4:16 PM EDTAreal Flood AdvisoryCTPAdams, Franklin3 hr
Jun 12, 4:25 PM EDTFlash Flood WarningCTPBedford, Cambria, Somerset3 hr
Jun 12, 5:40 PM EDTAreal Flood WarningCTPFranklin9 hr
Jun 12, 6:23 PM EDTFlash Flood WarningCTPBedford, Somerset3 hr
Jun 12, 6:38 PM EDTSpecial Weather StatementCTPWarren67 min
Jun 12, 6:41 PM EDTAreal Flood AdvisoryCTPLancaster2 hr
Jun 12, 7:25 PM EDTSevere Thunderstorm WarningCTPBedford35 min
Jun 12, 7:40 PM EDTSpecial Weather StatementCTPMcKean50 min

Nearby

Tornado Warnings in Pennsylvania, 2014Every tornado warning in 2014Tornadoes in 2014

Sources

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