Alert archive / Pennsylvania / Tornado Warnings in 2014

Tornado Warning 15, NWS State College, PA

September 2, 20144 counties in Pennsylvania

NWS State College, PA issued this tornado warning at Sep 2, 2014, 4:50 PM EDT for 4 counties in Pennsylvania. It was in force for 40 min. 4 reports 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
Sep 2, 2014, 4:50 PM EDT (20:50 UTC)
Expired
Sep 2, 2014, 5:30 PM EDT
In force
40 min
Issued by
NWS State College, PA
Area
Storm-based polygon

Counties Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA

The radar

The State College radar (KCCX), 41 km from the middle of the area, began a volume at 20:52 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
Sep 2, 4:54 PM EDTFUNNEL CLOUDHelvetia, PAMULTIPLE REPORTS OF FUNNEL CLOUD BY PUBLIC AND BRADY TWP FIRE CO
Sep 2, 4:57 PM EDTTSTM WND DMGStanley, PANMRS TREES DOWN ALONG STANLEY BOTTOM RD
Sep 2, 5:00 PM EDTTSTM WND DMGLuthersburg, PATREES DOWN
Sep 2, 5:34 PM EDTTSTM WND DMG1 Ene C And M Junction, PATREES DOWN ON OKLAHOMA SALEM RD SR 4011

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 2, 4:39 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 8.8 hours before the alert went out and 165 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 2014-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 274 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, Pittsburgh, PA at 12:00Z on 2014-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
274 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

908 
WFUS51 KCTP 022050
TORCTP
PAC023-027-033-035-022130-
/O.NEW.KCTP.TO.W.0015.140902T2050Z-140902T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
450 PM EDT TUE SEP 2 2014

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CAMERON COUNTY IN NORTH CENTRAL PENNSYLVANIA...
  WEST CENTRAL CLINTON COUNTY IN NORTH CENTRAL PENNSYLVANIA...
  NORTHWESTERN CENTRE COUNTY IN CENTRAL PENNSYLVANIA...
  NORTHERN CLEARFIELD COUNTY IN CENTRAL PENNSYLVANIA...

* UNTIL 530 PM EDT
    
* AT 450 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  NEAR SYKESVILLE...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DUBOIS...CLEARFIELD...SANDY...WOODLAND...CURWENSVILLE...HYDE...
  PLYMPTONVILLE...ROCKTON...KARTHAUS...SNOW SHOE...CLARENCE...
  MOSHANNON...PINE GLEN...LECONTES MILLS...S.B. ELLIOT STATE PARK...
  GRASSFLAT...GRAMPIAN...KYLERTOWN...TROUTVILLE AND
  CLEARFIELD-LAWRENCE AIRPORT.

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 101 AND 131.

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.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...CONTACT THE
NATIONAL WEATHER SERVICE...OR YOUR LOCAL AUTHORITY WHO WILL RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN STATE COLLEGE
PA. THIS ACT MAY SAVE LIVES OF OTHERS IN THE PATH OF DANGEROUS
WEATHER.

&&

LAT...LON 4111 7880 4123 7827 4123 7824 4124 7823
      4129 7803 4102 7795 4092 7880
TIME...MOT...LOC 2050Z 257DEG 41KT 4103 7877 

$$

LA CORTE
2 follow-up statements
603 
WWUS51 KCTP 022101
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
501 PM EDT TUE SEP 2 2014

PAC023-027-033-035-022130-
/O.CON.KCTP.TO.W.0015.000000T0000Z-140902T2130Z/
CAMERON PA-CLINTON PA-CENTRE PA-CLEARFIELD PA-
501 PM EDT TUE SEP 2 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
SOUTHEASTERN CAMERON...WEST CENTRAL CLINTON...NORTHWESTERN CENTRE AND
NORTHERN CLEARFIELD COUNTIES...
    
AT 501 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
ROCKTON...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
CLEARFIELD...HYDE...PLYMPTONVILLE...ROCKTON...KARTHAUS...SNOW SHOE...
CLARENCE...MOSHANNON...PINE GLEN...LECONTES MILLS...S.B. ELLIOT STATE
PARK AND CLEARFIELD-LAWRENCE AIRPORT.

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.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL AUTHORITY WHO WILL RELAY YOUR
REPORT. THIS ACT MAY SAVE THE LIVES OF OTHERS IN THE PATH OF
DANGEROUS WEATHER.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN STATE COLLEGE PA.

&&

LAT...LON 4100 7872 4110 7873 4117 7847 4123 7826
      4123 7824 4124 7823 4126 7814 4129 7804
      4102 7795
TIME...MOT...LOC 2101Z 256DEG 35KT 4105 7867 

$$

LA CORTE
656 
WWUS51 KCTP 022123
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
523 PM EDT TUE SEP 2 2014

PAC023-027-033-035-022130-
/O.CON.KCTP.TO.W.0015.000000T0000Z-140902T2130Z/
CAMERON PA-CLINTON PA-CENTRE PA-CLEARFIELD PA-
523 PM EDT TUE SEP 2 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
SOUTHEASTERN CAMERON...WEST CENTRAL CLINTON...NORTHWESTERN CENTRE AND
NORTHEASTERN CLEARFIELD COUNTIES...

AT 522 PM EDT...THE PUBLIC REPORTED A POSSIBLE TORNADO ON STANLEY 
BOTTOM ROAD IN CLEAFIELD COUNTY. TREES WERE ALSO REPORTED DOWN IN 
SANDY TOWNSHIP. THIS TORNADIC STORM WAS LOCATED NEAR 
PLYMPTONVILLE...MOVING EAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
PLYMPTONVILLE...KARTHAUS...SNOW SHOE...CLARENCE...MOSHANNON...PINE
GLEN...LECONTES MILLS...S.B. ELLIOT STATE PARK AND
CLEARFIELD-LAWRENCE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A POSSIBLE TORNADO HAS BEEN SIGHTED. TO PROTECT YOUR 
LIFE...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.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL AUTHORITY WHO WILL RELAY YOUR
REPORT. THIS ACT MAY SAVE THE LIVES OF OTHERS IN THE PATH OF
DANGEROUS WEATHER.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN STATE COLLEGE PA.

&&

LAT...LON 4104 7853 4113 7854 4122 7826 4124 7822
      4125 7817 4126 7814 4129 7804 4102 7795
TIME...MOT...LOC 2122Z 261DEG 34KT 4109 7843 

$$

LA CORTE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 3:37 PM EDTSpecial Weather StatementCTPAdams68 min
Sep 2, 3:54 PM EDTSpecial Weather StatementCTPCambria66 min
Sep 2, 4:05 PM EDTSpecial Weather StatementCTPMcKean, Warren55 min
Sep 2, 4:16 PM EDTSpecial Weather StatementCTPYork59 min
Sep 2, 4:21 PM EDTSevere Thunderstorm WarningCTPMcKean, Potter, Warren54 min
Sep 2, 4:23 PM EDTSevere Thunderstorm WarningCTPAdams37 min
Sep 2, 4:43 PM EDTSevere Thunderstorm WarningCTPCameron, Centre, Clearfield62 min
Sep 2, 4:44 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, Franklin46 min
Sep 2, 4:47 PM EDTSevere Thunderstorm WarningCTPCameron, Elk, McKean, Potter58 min
Sep 2, 4:57 PM EDTSpecial Weather StatementCTPLebanon48 min
Sep 2, 5:00 PM EDTSpecial Weather StatementCTPYork30 min
Sep 2, 5:20 PM EDTSevere Thunderstorm WarningCTPClearfield, Elk25 min
Sep 2, 5:26 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, Dauphin, Lancaster, York64 min
Sep 2, 5:35 PM EDTSevere Thunderstorm WarningCTPCentre, Clearfield40 min
Sep 2, 5:43 PM EDTSevere Thunderstorm WarningCTPCameron, Clinton, Elk, Lycoming, McKean, Potter and 1 more62 min
Sep 2, 6:12 PM EDTSevere Thunderstorm WarningCTPCentre, Clinton35 min
Sep 2, 6:16 PM EDTSpecial Weather StatementCTPLancaster44 min
Sep 2, 6:23 PM EDTSpecial Weather StatementCTPDauphin22 min
Sep 2, 6:27 PM EDTSpecial Weather StatementCTPMontour33 min
Sep 2, 6:48 PM EDTSpecial Weather StatementCTPLycoming, Sullivan42 min
Sep 2, 6:52 PM EDTSpecial Weather StatementCTPLycoming23 min
Sep 2, 7:07 PM EDTSevere Thunderstorm WarningCTPLycoming, Sullivan38 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.