Alert archive / Pennsylvania / Tornado Warnings in 1998

Tornado Warning 47, NWS State College, PA

June 2, 1998Snyder County, Pennsylvania

NWS State College, PA issued this tornado warning at Jun 2, 1998, 9:12 PM EDT for Snyder County, Pennsylvania. It was in force for 33 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 2, 1998, 9:12 PM EDT (01:12 UTC)
Expired
Jun 2, 1998, 9:45 PM EDT
In force
33 min
Issued by
NWS State College, PA
Area
Whole counties

County Snyder County, PA

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 2, 5:15 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.2 hours before the alert went out and 204 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, Washington/Dulle, VA at 00:00Z on 1998-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1513 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 1998-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 229 square meters per square second.19395878Sfc1 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
1513 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1158 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
229 m²/s²
0-3 km storm-relative helicity
416 m²/s²
Significant tornado parameter
2.2
Supercell composite
11.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCTP 030112 RRA
TORCTP
PAC109-030145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
912 PM EDT TUE JUN 2 1998

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A

* TORNADO WARNING FOR...
  SNYDER COUNTY IN CENTRAL PENNSYLVANIA

* UNTIL 945 PM EDT

* AT 911 PM EDT... STATE COLLEGE DOPPLER RADAR INDICATED A TORNADO
  3 MILES NORTHWEST OF SELINSGROVE MOVING EAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR.4..
  SELINSGROVE                     BY 912 PM EDT
  SHAMOKIN DAM                    BY 915 PM EDT

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

MMD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 8:02 PM EDTTornado WarningCTPCameron63 min
Jun 2, 8:10 PM EDTTornado WarningCTPJuniata, Mifflin75 min
Jun 2, 8:13 PM EDTTornado WarningCTPSomerset92 min
Jun 2, 8:52 PM EDTTornado WarningCTPCentre63 min
Jun 2, 8:57 PM EDTTornado WarningCTPUnion48 min
Jun 2, 9:04 PM EDTTornado WarningCTPMontour, Northumberland61 min
Jun 2, 9:10 PM EDTTornado WarningCTPHuntingdon, Mifflin45 min
Jun 2, 9:25 PM EDTTornado WarningCTPColumbia, Schuylkill75 min

Nearby

Tornado Warnings in Pennsylvania, 1998Every tornado warning in 1998Tornadoes in 1998

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.