Alert archive / Pennsylvania / Tornado Warnings in 2011
Tornado Warning 35, NWS State College, PA
NWS State College, PA issued this tornado warning at Jun 12, 2011, 2:49 PM EDT for Dauphin County, Lancaster County, York County, Pennsylvania. It was in force for 26 min. 5 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
- Jun 12, 2011, 2:49 PM EDT (18:49 UTC)
- Expired
- Jun 12, 2011, 3:15 PM EDT
- In force
- 26 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
Counties Dauphin County, PA, Lancaster County, PA, York County, PA
The radar
The Sterling radar (KLWX), 147 km from the middle of the area, began a volume at 18:52 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 12, 2:50 PM EDT | HAIL 0.88 | Valley Green, PA | HAIL FOR 10 MINUTES |
| Jun 12, 3:07 PM EDT | HAIL 1 | 2 S Valley Green, PA | ONE INCH SIZE HAIL AT ETTERS... PA |
| Jun 12, 3:07 PM EDT | HAIL 1 | 4 Se Middletown, PA | ONE INCH SIZE HAIL AT ETTERS... PA |
| Jun 12, 3:12 PM EDT | TSTM WND DMG | Hallam, PA | TREES DOWN |
| Jun 12, 3:12 PM EDT | TSTM WND DMG | Wrightsville, PA | TREES DOWN. POSSIBLE FUNNEL CLOUD REPORTED JUST NORTH OF WRIGHTSVILLE. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 12, 1:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.8 hours before the alert went out and 145 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.
- Mixed-layer CAPE
- 360 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 861 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
197 WFUS51 KCTP 121849 TORCTP PAC043-071-133-121915- /O.NEW.KCTP.TO.W.0035.110612T1849Z-110612T1915Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 249 PM EDT SUN JUN 12 2011 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN DAUPHIN COUNTY IN SOUTH CENTRAL PENNSYLVANIA... WEST CENTRAL LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA... NORTH CENTRAL YORK COUNTY IN SOUTH CENTRAL PENNSYLVANIA... * UNTIL 315 PM EDT * AT 245 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM CONTAINING THE POSSIBLE TORNADO WAS NEAR GOLDSBORO...MOVING SOUTHEAST AT 25 MPH. * THE TORNADO WILL BE NEAR... BAINBRIDGE AND MANCHESTER AROUND 300 PM EDT... ELIZABETHTOWN AROUND 305 PM EDT... MAYTOWN AROUND 310 PM EDT... 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 245 AND 255...I-83 BETWEEN MILE MARKERS 25 AND 36...I-283. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 800 PM EDT SUNDAY EVENING FOR SOUTH CENTRAL PENNSYLVANIA. && LAT...LON 4009 7633 3989 7648 4011 7690 4026 7678 TIME...MOT...LOC 1849Z 300DEG 22KT 4014 7674 $$ FORECASTER: LA CORTE
1 follow-up statement
138
WWUS51 KCTP 121903
SVSCTP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
303 PM EDT SUN JUN 12 2011
PAC043-121913-
/O.CAN.KCTP.TO.W.0035.000000T0000Z-110612T1915Z/
DAUPHIN PA-
303 PM EDT SUN JUN 12 2011
...THE TORNADO WARNING FOR SOUTHEASTERN DAUPHIN COUNTY IS
CANCELLED...
THE STORM THAT PROMPTED THE TORNADO WARNING HAS MOVED OUT OF THE
AREA...THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR SOUTH CENTRAL PENNSYLVANIA.
LAT...LON 4005 7679 4007 7680 4013 7674 4012 7672
4016 7669 4015 7668 4017 7666 4017 7664
4018 7662 4006 7639 3991 7653
TIME...MOT...LOC 1903Z 305DEG 22KT 4008 7665
$$
PAC071-133-121915-
/O.CON.KCTP.TO.W.0035.000000T0000Z-110612T1915Z/
LANCASTER PA-YORK PA-
303 PM EDT SUN JUN 12 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR CENTRAL
YORK AND WEST CENTRAL LANCASTER COUNTIES...
AT 300 PM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION THAT MAY BE PRODUCING A
TORNADO. THIS STORM THAT MAY BE PRODUCING A TORNADO WAS LOCATED NEAR
BAINBRIDGE...OR NEAR ELIZABETHTOWN...MOVING SOUTHEAST AT 25 MPH.
THE TORNADO WILL BE NEAR...
MAYTOWN AROUND 310 PM EDT...
MARIETTA AND WRIGHTSVILLE AROUND 315 PM EDT...
THIS WILL IMPACT I-83 BETWEEN MILE MARKERS 25 AND 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR SOUTH CENTRAL PENNSYLVANIA.
&&
LAT...LON 4005 7679 4007 7680 4013 7674 4012 7672
4016 7669 4015 7668 4017 7666 4017 7664
4018 7662 4006 7639 3991 7653
TIME...MOT...LOC 1903Z 305DEG 22KT 4008 7665
$$
FORECASTER: LA CORTEThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:04 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
| Jun 11, 8:22 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 53 min |
| Jun 11, 8:23 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Sullivan | 37 min |
| Jun 11, 8:41 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 79 min |
| Jun 11, 8:59 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Sullivan | 31 min |
| Jun 11, 10:01 PM EDT | Special Weather Statement | CTP | Lancaster | 59 min |
| Jun 11, 10:31 PM EDT | River Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 6 hr |
| Jun 12, 12:26 AM EDT | River Flood Warning | CTP | Dauphin, Lebanon | 7 hr |
| Jun 12, 11:49 AM EDT | Special Weather Statement | CTP | Mifflin | 41 min |
| Jun 12, 12:28 PM EDT | Special Weather Statement | CTP | Bedford | 32 min |
| Jun 12, 1:13 PM EDT | Special Weather Statement | CTP | Juniata, Perry | 32 min |
| Jun 12, 1:22 PM EDT | Special Weather Statement | CTP | Franklin, Fulton | 23 min |
| Jun 12, 1:30 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Perry | 60 min |
| Jun 12, 1:53 PM EDT | Special Weather Statement | CTP | Franklin | 37 min |
| Jun 12, 2:02 PM EDT | Severe Thunderstorm Warning | CTP | Franklin, Fulton | 58 min |
| Jun 12, 2:06 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more | 54 min |
| Jun 12, 2:50 PM EDT | Areal Flood Advisory | CTP | Cumberland, Dauphin, Lancaster, York | 3 hr |
| Jun 12, 2:56 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Dauphin, Lancaster, Lebanon, York | 79 min |
| Jun 12, 3:16 PM EDT | Tornado Warning | CTP | Lancaster, York | 44 min |
| Jun 12, 3:47 PM EDT | Tornado Warning | CTP | York | 13 min |
Nearby
Tornado Warnings in Pennsylvania, 2011Every tornado warning in 2011Tornadoes in 2011
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.