Alert archive / Pennsylvania / Tornado Warnings in 2001

Tornado Warning 16, NWS State College, PA

September 13, 2001Lycoming County, Pennsylvania

NWS State College, PA issued this tornado warning at Sep 13, 2001, 5:41 PM EDT for Lycoming County, Pennsylvania. It was in force for 34 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Sep 13, 2001, 5:41 PM EDT (21:41 UTC)
Expired: Sep 13, 2001, 6:15 PM EDT
In force: 34 min
Issued by: NWS State College, PA
Area: Whole counties

County Lycoming County, PA

What was reported inside it

Time	Report	Where	Remark
Sep 13, 6:00 PM EDT	Hail 1	Hughesville, PA	Quarter sized hail was reported 2 miles north of Hughesville.
Sep 13, 6:13 PM EDT	Hail 0.75	Williamsport, PA	Dime sized hail was reported in Williamsport.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.7 hours before the alert went out and 222 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 721 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 134 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.

704 
WFUS51 KCTP 132142
TORCTP
PAC081-132215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
541 PM EDT THU SEP 13 2001

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  LYCOMING COUNTY IN PENNSYLVANIA

* UNTIL 615 PM EDT.

* AT 532 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO 8 MILES NORTH OF
  HUGHESVILLE...OR 11 MILES NORTHEAST OF MONTOURSVILLE...MOVING
  SOUTHEAST AT 30 MPH.

* THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF...  
  EASTERN LYCOMING AND SOUTHEASTERN LYCOMING COUNTIES BETWEEN 
  TIVOLI AND UNITYVILLE.

FOR YOUR PROTECTION FROM THE DAMAGING WINDS OF A TORNADO...GO TO A
BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.

$$

RXR

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 13, 5:04 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	56 min
Sep 13, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	41 min
Sep 13, 6:12 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	63 min
Sep 13, 7:14 PM EDT	Severe Thunderstorm Warning	CTP	Columbia	31 min
Sep 13, 7:40 PM EDT	Severe Thunderstorm Warning	CTP	Centre	65 min

Nearby

Tornado Warnings in Pennsylvania, 2001 Every tornado warning in 2001 Tornadoes in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.