Alert archive / Pennsylvania / Tornado Warnings in 2010

Tornado Warning 2, NWS State College, PA

May 14, 2010Cumberland County, Pennsylvania

NWS State College, PA issued this tornado warning at May 14, 2010, 4:58 PM EDT for Cumberland County, Pennsylvania. It was in force for 32 min. 7 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
May 14, 2010, 4:58 PM EDT (20:58 UTC)
Expired
May 14, 2010, 5:30 PM EDT
In force
32 min
Issued by
NWS State College, PA
Area
Storm-based polygon

County Cumberland County, PA

The radar

The State College radar (KCCX), 105 km from the middle of the area, began a volume at 20:57 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
May 14, 5:03 PM EDTHAIL 1.25Carlisle, PA
May 14, 5:04 PM EDTHAIL 1.25Carlisle, PA
May 14, 5:09 PM EDTHAIL 1.75Carlisle, PA
May 14, 5:10 PM EDTTSTM WND DMGCarlisle, PATREES DOWN. POSSIBLE TORNADO - TRAIN-LIKE ROAR HEARD.
May 14, 5:10 PM EDTHAIL 1.75Mechanicsburg, PA
May 14, 5:19 PM EDTHAIL 1.75Mechanicsburg, PA
May 14, 5:20 PM EDTHAIL 27 Wsw Carlisle, PAMOST OF THE HAIL WAS GOLF BALL SIZE WITH A FEW IN EXCESS OF 2 INCHES AT PLAINFIELD.

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
May 14, 2:29 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.0 hours before the alert went out and 125 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, Phillips Aaf/Abe, MD at 12:00Z on 2010-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, Phillips Aaf/Abe, MD at 12:00Z on 2010-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.19395878Sfc1 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
557 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
187 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

057 
WFUS51 KCTP 142058
TORCTP
PAC041-142130-
/O.NEW.KCTP.TO.W.0002.100514T2058Z-100514T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
458 PM EDT FRI MAY 14 2010

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CUMBERLAND COUNTY IN SOUTH CENTRAL PENNSYLVANIA...

* UNTIL 530 PM EDT

* AT 453 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM
  CONTAINING THE POSSIBLE TORNADO WAS NEAR BLOSERVILLE...MOVING EAST
  AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  CARLISLE...MOUNT HOLLY SPRING AND CARLISLE SPRINGS AROUND 505 PM...
  BOILING SPRINGS AROUND 510 PM...
  HOGESTOWN AROUND 515 PM...
  MECHANICSBURG AND SHIREMANSTOWN AROUND 520 PM...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 215 AND 237...I-81 BETWEEN
MILE MARKERS 38 AND 54.

THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...THE HARRISBURG
EXPRESSWAY...ROUTE 11...ROUTE 15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.

TAKE COVER INSIDE NOW. DO NOT WAIT TO SEE OR HEAR THE TORNADO. MOVE
TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF A STURDY BUILDING. PUT AS
MANY WALLS BETWEEN YOU AND THE OUTSIDE AS YOU CAN. AVOID WINDOWS.
PROTECT YOURSELF FROM FLYING DEBRIS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM FRIDAY
EVENING FOR SOUTH CENTRAL PENNSYLVANIA.

&&

LAT...LON 4015 7740 4028 7733 4023 7690 4007 7715
TIME...MOT...LOC 2058Z 282DEG 35KT 4019 7727

$$

FORECASTER: DANGELO
1 follow-up statement
713 
WWUS51 KCTP 142132
SVSCTP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
532 PM EDT FRI MAY 14 2010

PAC041-142142-
/O.EXP.KCTP.TO.W.0002.000000T0000Z-100514T2130Z/
CUMBERLAND PA-
532 PM EDT FRI MAY 14 2010

...THE TORNADO WARNING FOR EASTERN CUMBERLAND COUNTY HAS EXPIRED...

THE TORNADO WARNING WAS ALLOWED TO EXPIRE.

HAIL UP TO GOLF BALL SIXE WAS REPORTED IN CARLISLE FROM THIS STORM.

PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT FRIDAY
EVENING FOR SOUTH CENTRAL PENNSYLVANIA.

LAT...LON 4015 7740 4028 7733 4023 7690 4007 7715
TIME...MOT...LOC 2058Z 282DEG 35KT 4019 7727

$$

FORECASTER: DANGELO

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 12:11 AM EDTSpecial Weather StatementCTPElk49 min
May 14, 3:33 AM EDTSpecial Weather StatementCTPWarren27 min
May 14, 5:47 AM EDTSpecial Weather StatementCTPCameron, Clearfield, Elk28 min
May 14, 6:04 AM EDTSevere Thunderstorm WarningCTPCameron, Clearfield, Elk41 min
May 14, 6:35 AM EDTSpecial Weather StatementCTPClinton25 min
May 14, 9:00 AM EDTSpecial Weather StatementCTPBedford45 min
May 14, 11:50 AM EDTSpecial Weather StatementCTPBedford, Franklin25 min
May 14, 12:52 PM EDTSpecial Weather StatementCTPCumberland23 min
May 14, 1:10 PM EDTSpecial Weather StatementCTPFranklin35 min
May 14, 1:58 PM EDTSpecial Weather StatementCTPColumbia, Montour, Union32 min
May 14, 2:59 PM EDTSpecial Weather StatementCTPBlair, Cambria, Huntingdon46 min
May 14, 3:04 PM EDTSevere Thunderstorm WarningCTPBlair, Cambria, Huntingdon41 min
May 14, 3:19 PM EDTSevere Thunderstorm WarningCTPBedford, Blair, Cambria, Huntingdon41 min
May 14, 3:32 PM EDTSevere Thunderstorm WarningCTPBedford, Blair, Cambria, Huntingdon, Somerset58 min
May 14, 3:55 PM EDTSevere Thunderstorm WarningCTPCumberland, Huntingdon, Juniata, Mifflin, Perry50 min
May 14, 4:20 PM EDTSevere Thunderstorm WarningCTPCumberland, Franklin, Huntingdon, Juniata, Perry70 min
May 14, 4:24 PM EDTSevere Thunderstorm WarningCTPDauphin, Lebanon, Perry, Schuylkill57 min
May 14, 4:35 PM EDTSpecial Weather StatementCTPSomerset25 min
May 14, 4:40 PM EDTSpecial Weather StatementCTPFulton35 min
May 14, 4:53 PM EDTSpecial Weather StatementCTPSchuylkill22 min
May 14, 5:05 PM EDTSpecial Weather StatementCTPBedford25 min
May 14, 5:15 PM EDTSevere Thunderstorm WarningCTPCumberland, York45 min
May 14, 5:28 PM EDTSevere Thunderstorm WarningCTPAdams, Franklin31 min
May 14, 5:30 PM EDTSpecial Weather StatementCTPFulton30 min
May 14, 5:36 PM EDTAreal Flood AdvisoryCTPAdams, Cumberland, York3 hr
May 14, 5:41 PM EDTSevere Thunderstorm WarningCTPDauphin, Lancaster, York64 min
May 14, 6:00 PM EDTSpecial Weather StatementCTPAdams30 min
May 14, 6:00 PM EDTSevere Thunderstorm WarningCTPLancaster, York75 min
May 14, 6:09 PM EDTSpecial Weather StatementCTPFranklin36 min
May 14, 6:12 PM EDTSpecial Weather StatementCTPSomerset33 min
May 14, 6:24 PM EDTSevere Thunderstorm WarningCTPAdams, York51 min
May 14, 6:55 PM EDTSpecial Weather StatementCTPAdams35 min
May 14, 7:16 PM EDTSpecial Weather StatementCTPYork29 min
May 14, 7:26 PM EDTAreal Flood AdvisoryCTPLancaster2 hr
May 14, 7:42 PM EDTSpecial Weather StatementCTPBlair33 min

Nearby

Tornado Warnings in Pennsylvania, 2010Every tornado warning in 2010Tornadoes in 2010

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.