Alert archive / Pennsylvania / Tornado Warnings in 2002

Tornado Warning 3, NWS State College, PA

June 4, 2002Clearfield County, Pennsylvania

NWS State College, PA issued this tornado warning at Jun 4, 2002, 6:22 PM EDT for Clearfield County, Pennsylvania. It was in force for 23 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: Jun 4, 2002, 6:22 PM EDT (22:22 UTC)
Expired: Jun 4, 2002, 6:45 PM EDT
In force: 23 min
Issued by: NWS State College, PA
Area: Whole counties

County Clearfield County, PA

The radar

The State College radar (KCCX), 40 km from the middle of the area, began a volume at 22:25 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
Jun 4, 5:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.4 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-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: 693 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 798 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

875 
WFUS51 KCTP 042222
TORCTP
PAC033-042245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
622 PM EDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* TORNADO WARNING FOR...
  CLEARFIELD COUNTY IN PENNSYLVANIA

* UNTIL 645 PM EDT.

* AT 620 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO NEAR S.B. ELLIOT
  SP...OR 9 MILES NORTHWEST OF CLEARFIELD...MOVING EAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  PARKER DAM SP AT 625 PM.
  LECONTES MILLS AT 645 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 4124 7860 4107 7864 4098 7818 4121 7813

JL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 3:27 PM EDT	Severe Thunderstorm Warning	CTP	Warren	63 min
Jun 4, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	McKean	56 min
Jun 4, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Elk	59 min
Jun 4, 5:34 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	56 min
Jun 4, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	McKean	61 min
Jun 4, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	46 min
Jun 4, 7:04 PM EDT	Severe Thunderstorm Warning	CTP	Centre	56 min
Jun 4, 7:50 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon, Mifflin	55 min

Nearby

Tornado Warnings in Pennsylvania, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.