Alert archive / Pennsylvania / Tornado Warnings in 2001

Tornado Warning 11, NWS State College, PA

August 16, 2001Clearfield County, Pennsylvania

NWS State College, PA issued this tornado warning at Aug 16, 2001, 7:49 PM EDT for Clearfield County, Pennsylvania. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 16, 2001, 7:49 PM EDT (23:49 UTC)
Expired
Aug 16, 2001, 8:15 PM EDT
In force
26 min
Issued by
NWS State College, PA
Area
Whole counties

County Clearfield County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.8 hours before the alert went out and 152 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2001-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 131 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2001-08-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
131 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
210 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.

220 
WFUS51 KCTP 162351
TORCTP
PAC033-170015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
749 PM EDT THU AUG 16 2001

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  CLEARFIELD COUNTY IN PENNSYLVANIA

* UNTIL 815 PM EDT.

* AT 747 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING    
  A CONFIRMED TORNADO ON THE GROUND NEAR ROCKTON...OR 8 MILES 
  SOUTHEAST OF DUBOIS...MOVING NORTHEAST AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  S.B. ELLIOT SP AT 800 PM.

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.

$$

LAT...LON 4108 7862 4105 7860 4111 7835 4117 7844

&

LAMBERT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 4:11 PM EDTSevere Thunderstorm WarningCTPPotter34 min
Aug 16, 4:21 PM EDTSevere Thunderstorm WarningCTPClinton39 min
Aug 16, 4:31 PM EDTSevere Thunderstorm WarningCTPTioga59 min
Aug 16, 4:31 PM EDTSevere Thunderstorm WarningCTPCentre44 min
Aug 16, 4:39 PM EDTSevere Thunderstorm WarningCTPLycoming66 min
Aug 16, 4:58 PM EDTSevere Thunderstorm WarningCTPClinton47 min
Aug 16, 6:51 PM EDTSevere Thunderstorm WarningCTPClearfield, Elk54 min

Nearby

Tornado Warnings in Pennsylvania, 2001Every tornado warning in 2001Tornadoes 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; the sounding from the Mesonet's radiosonde archive.