Alert archive / Pennsylvania / Tornado Warnings in 2007
Tornado Warning 11, NWS State College, PA
NWS State College, PA issued this tornado warning at Aug 30, 2007, 5:18 PM EDT for Blair County, Pennsylvania. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 30, 2007, 5:18 PM EDT (21:18 UTC)
- Expired
- Aug 30, 2007, 6:00 PM EDT
- In force
- 42 min
- Issued by
- NWS State College, PA
- Area
- Counties, with a storm outline in the text
County Blair County, PA
The radar
The State College radar (KCCX), 42 km from the middle of the area, began a volume at 21:18 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.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 9.3 hours before the alert went out and 161 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
- 1186 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 1055 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS51 KCTP 302118
TORCTP
PAC013-302200-
/O.NEW.KCTP.TO.W.0011.070830T2118Z-070830T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
518 PM EDT THU AUG 30 2007
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL BLAIR COUNTY IN CENTRAL PENNSYLVANIA...
* UNTIL 600 PM EDT
* AT 514 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR SINKING
VALLEY...OR NEAR TYRONE...MOVING SOUTHWEST AT 20 MPH.
* THE TORNADO WILL BE NEAR...
SINKING VALLEY AROUND 525 PM EDT...
THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...
I-99 BETWEEN MILE MARKERS 39 AND 41.
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.
IF YOU ARE IN THE PATH OF THIS STORM...MOVE INDOORS IMMEDIATELY.
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. STAY AWAY FROM WINDOWS.
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.
LAT...LON 4065 7821 4062 7818 4060 7819 4058 7818
4057 7819 4054 7819 4053 7817 4048 7818
4058 7835
TIME...MOT...LOC 2118Z 036DEG 21KT 4059 7823
$$
FORECASTER: DEVOIR/RXR/TYBURSKI1 follow-up statement
000
WWUS51 KCTP 302130
SVSCTP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
529 PM EDT THU AUG 30 2007
PAC013-302200-
/O.CON.KCTP.TO.W.0011.000000T0000Z-070830T2200Z/
BLAIR PA-
529 PM EDT THU AUG 30 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR EAST
CENTRAL BLAIR COUNTY...
AT 522 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A POSSIBLE TORNADO. THIS STORM WAS LOCATED NEAR SINKING
VALLEY...OR 8 MILES SOUTH OF TYRONE...MOVING SOUTH AT 20 MPH.
THE POTENTIALLY TORNADIC STORM WILL BE NEAR...
RURAL EASTERN BLAIR COUNTY AT 540 PM EDT
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
PLEASE REPORT HAIL...STRONG WINDS OR WIND DAMAGE TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...1 8 7 7 6 3 3 6 7 7 2.
LAT...LON 4065 7821 4062 7818 4054 7819 4053 7817
4049 7818 4049 7821 4054 7829 4055 7829
TIME...MOT...LOC 2129Z 016DEG 19KT 4054 7822
$$
FORECASTER: DEVOIRThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 2:33 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 57 min |
| Aug 30, 3:06 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 54 min |
| Aug 30, 3:16 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 59 min |
| Aug 30, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 28 min |
| Aug 30, 3:47 PM EDT | Flash Flood Warning | CTP | Tioga | 3 hr |
| Aug 30, 3:49 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 56 min |
| Aug 30, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Sullivan | 60 min |
| Aug 30, 4:49 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair | 56 min |
| Aug 30, 5:08 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon | 37 min |
Nearby
Tornado Warnings in Pennsylvania, 2007Every tornado warning in 2007Tornadoes in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.