Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 4, NWS State College, PA

March 25, 2000Lycoming County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Mar 25, 2000, 4:34 PM EST for Lycoming County, Pennsylvania. It was in force for 41 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Mar 25, 2000, 4:34 PM EST (21:34 UTC)
Expired
Mar 25, 2000, 5:15 PM EST
In force
41 min
Issued by
NWS State College, PA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Lycoming County, PA

What was reported inside it

TimeReportWhereRemark
Mar 25, 4:45 PM ESTHail 0.75Montgomery, PADime size hail was reported iin Montgomery.

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, 9.6 hours before the alert went out and 246 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, Buffalo Intl Airport, NY at 12:00Z on 2000-03-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2000-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
14 J/kg
Mixed-layer CIN
-137 J/kg
Mixed-layer LCL
984 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
143 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.

000 
WUUS51 KCTP 252134
SVRCTP
PAC081-252215-

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

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LYCOMING COUNTY.

* UNTIL 515 PM EST.

* AT 430 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTH OF MONTOURSVILLE...OR ABOUT 4
  MILES WEST OF MONTGOMERY...MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HUGHESVILLE AT 450 PM EST.

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

.END/ ONDREJIK

LAT...LON 4127 7704 4109 7701 4113 7644 4135 7648

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, 4:18 PM ESTSevere Thunderstorm WarningCTPClearfield27 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.