Alert archive / Pennsylvania / Tornado Warnings in 2007
Tornado Warning 9, NWS State College, PA
NWS State College, PA issued this tornado warning at Aug 17, 2007, 1:23 PM EDT for Columbia County, Montour County, Pennsylvania. It was in force for 52 min. 3 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
- Aug 17, 2007, 1:23 PM EDT (17:23 UTC)
- Expired
- Aug 17, 2007, 2:15 PM EDT
- In force
- 52 min
- Issued by
- NWS State College, PA
- Area
- Counties, with a storm outline in the text
Counties Columbia County, PA, Montour County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 17, 1:30 PM EDT | HAIL 1.5 | 1 Ene Exchange, PA | HAIL MEASURED AT HOME ON THE MONTOUR SIDE OF THE COUNTY LINE. HAIL HAS BEEN ON GROUND FOR OVER HALF HOUR BEFORE MEASUREMENT. |
| Aug 17, 1:35 PM EDT | HAIL 1.5 | 1 Ene Exchange, PA | HAIL MEASURED AT HOME ON THE MONTOUR SIDE OF THE COUNTY LINE. HAIL HAS BEEN ON GROUND FOR OVER HALF HOUR BEFORE MEASUREMENT. |
| Aug 17, 2:16 PM EDT | HAIL 1 | Bloomsburg, PA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 5.4 hours before the alert went out and 243 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
- 352 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 48 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 171724
TORCTP
PAC037-093-171815-
/O.NEW.KCTP.TO.W.0009.070817T1723Z-070817T1815Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
123 PM EDT FRI AUG 17 2007
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN MONTOUR COUNTY IN CENTRAL PENNSYLVANIA...
CENTRAL COLUMBIA COUNTY IN CENTRAL PENNSYLVANIA...
* UNTIL 215 PM EDT
* AT 121 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR EXCHANGE...
OR 10 MILES NORTHEAST OF MILTON...MOVING EAST AT 35 MPH.
* THE TORNADO WILL BE NEAR...
EXCHANGE AROUND 130 PM EDT...
JERSEYTOWN AROUND 135 PM EDT...
BLOOMSBURG AROUND 150 PM EDT...
ALMEDIA AND MAINVILLE AROUND 155 PM EDT...
MIFFLINVILLE AROUND 200 PM EDT...
SHUMANS AROUND 205 PM EDT...
THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...
I-80 BETWEEN MILE MARKERS 228 AND 247.
THIS WILL ALSO IMPACT THE FOLLOWING MAJOR ROADS...ROUTE 11.
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 STORM IS ALSO CAPABLE OF PRODUCING LARGE HAIL OVER ONE INCH IN
DIAMETER....WHICH CAN DAMAGE CARS AND OTHER PROPERTY...AND DESTROY
CROPS.
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.
DO NOT STAY IN A VEHICLE DURING A TORNADO. CARS ARE EASILY TOSSED
AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD.
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 4093 7624 4092 7624 4087 7630 4110 7674
4115 7675 4105 7622 4094 7623
TIME...MOT...LOC 1723Z 292DEG 34KT 4113 7675
$$
FORECASTER: LAMBERTThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 12:10 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 65 min |
| Aug 17, 12:42 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster | 93 min |
| Aug 17, 12:56 PM EDT | Tornado Warning | CTP | Lycoming | 34 min |
| Aug 17, 1:14 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour | 61 min |
| Aug 17, 1:19 PM EDT | Severe Thunderstorm Warning | CTP | Northumberland | 26 min |
| Aug 17, 1:34 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 56 min |
| Aug 17, 1:56 PM EDT | Tornado Warning | CTP | Schuylkill | 34 min |
| Aug 17, 2:13 PM EDT | Severe Thunderstorm Warning | CTP | Columbia | 62 min |
| Aug 17, 2:28 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 62 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.