Alert archive / Pennsylvania / Tornado Warnings in 2006

Tornado Warning 8, NWS State College, PA

September 28, 2006Lancaster County, Pennsylvania

NWS State College, PA issued this tornado warning at Sep 28, 2006, 6:21 PM EDT for Lancaster County, Pennsylvania. It was in force for 39 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: Sep 28, 2006, 6:21 PM EDT (22:21 UTC)
Expired: Sep 28, 2006, 7:00 PM EDT
In force: 39 min
Issued by: NWS State College, PA
Area: Counties, with a storm outline in the text

County Lancaster County, PA

The radar

The Philadelphia radar (KDIX), 143 km from the middle of the area, began a volume at 22:21 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 watch it was issued in

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

Issued	Product	Office	Lasted
Sep 28, 2:59 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.4 hours before the alert went out and 83 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 9 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1054 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS51 KCTP 282221
TORCTP
PAC071-282300-
/O.NEW.KCTP.TO.W.0008.060928T2221Z-060928T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
621 PM EDT THU SEP 28 2006

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  LANCASTER COUNTY IN SOUTH CENTRAL PENNSYLVANIA

* UNTIL 700 PM EDT

* AT 616 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR LEOLA...
  MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  TERRE HILL AROUND 630 PM EDT...
  REAMSTOWN...DENVER AND CHURCHTOWN AROUND 635 PM EDT...
  ADAMSTOWN AROUND 640 PM EDT...

THIS WILL IMPACT THE FOLLOWING CENTRAL PENNSYLVANIA INTERSTATES...THE
PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 282 AND 295.

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 TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING
PREVIOUSLY ISSUED FOR THE WARNED AREA.

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.


LAT...LON 4009 7629 3999 7610 4038 7568 4052 7594

$$

FORECASTER:

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 28, 4:16 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	59 min
Sep 28, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Perry	55 min
Sep 28, 5:02 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	43 min
Sep 28, 5:16 PM EDT	Severe Thunderstorm Warning	CTP	York	44 min
Sep 28, 5:21 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin	39 min
Sep 28, 5:25 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland	65 min
Sep 28, 5:40 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	65 min
Sep 28, 5:55 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	50 min
Sep 28, 6:05 PM EDT	Severe Thunderstorm Warning	CTP	York	55 min

Nearby

Tornado Warnings in Pennsylvania, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.