Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 3, NWS State College, PA

March 25, 2000Clearfield County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Mar 25, 2000, 4:18 PM EST for Clearfield County, Pennsylvania. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Mar 25, 2000, 4:18 PM EST (21:18 UTC)
Expired
Mar 25, 2000, 4:45 PM EST
In force
27 min
Issued by
NWS State College, PA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Clearfield County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 9.3 hours before the alert went out and 164 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 2000-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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 2000-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
13 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1145 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
129 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.

696 
WUUS51 KCTP 252118
SVRCTP
PAC033-252145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
418 PM EST SAT MAR 25 2000

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CLEARFIELD COUNTY.

* UNTIL 445 PM EST.

* AT 415 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES NORTH OF CLEARFIELD...OR ABOUT 5 MILES
  NORTHWEST OF PLYMPTONVILLE...MOVING EAST AT 45 MPH.

THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.

.END/ ONDREJIK

LAT...LON 4121 7858 4103 7857 4100 7815 4119 7812

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 2:53 PM ESTSevere Thunderstorm WarningCTPSomerset37 min
Mar 25, 3:09 PM ESTSevere Thunderstorm WarningCTPCentre51 min
Mar 25, 4:34 PM ESTSevere Thunderstorm WarningCTPLycoming41 min
Mar 25, 4:53 PM ESTSevere Thunderstorm WarningCTPCumberland37 min
Mar 25, 4:55 PM ESTSevere Thunderstorm WarningCTPJuniata, Snyder35 min
Mar 25, 5:10 PM ESTSevere Thunderstorm WarningCTPLycoming50 min
Mar 25, 5:18 PM ESTSevere Thunderstorm WarningCTPDauphin, Lebanon42 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2000Every severe thunderstorm warning in 2000

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.