Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 100, NWS State College, PA

June 21, 1995Elk County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 21, 1995, 6:12 PM EDT for Elk County, Pennsylvania. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Jun 21, 1995, 6:12 PM EDT (22:12 UTC)
Expired
Jun 21, 1995, 7:00 PM EDT
In force
48 min
Issued by
NWS State College, PA
Area
Whole counties

County Elk County, PA

The radar

The State College radar (KCCX), 78 km from the middle of the area, began a volume at 22:15 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 nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.2 hours before the alert went out and 166 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 1995-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3253 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 1995-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939Sfc1 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
3253 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
696 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 2:30 PM EDT, 3 hours 42 minutes earlier.

Area forecast discussion, Jun 21, 2:30 PM EDT, 3 hours 42 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
229 PM EDT WED JUN 21 1995

NO AFDCTP THIS AFTERNOON.. MONITORING CELLS ON 88D IN CNTRL/WRN PA.

NICOSIA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 9:41 PM EDTSevere Thunderstorm WarningCTPNorthampton49 min
Jun 21, 1:39 AM EDTSevere Thunderstorm WarningCTPSomerset66 min
Jun 21, 3:22 PM EDTSevere Thunderstorm WarningCTPAdams68 min
Jun 21, 3:44 PM EDTSevere Thunderstorm WarningCTPElk46 min
Jun 21, 4:16 PM EDTSevere Thunderstorm WarningCTPFranklin59 min
Jun 21, 5:09 PM EDTSevere Thunderstorm WarningCTPElk66 min
Jun 21, 7:14 PM EDTSevere Thunderstorm WarningCTPMcKean61 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1995Every severe thunderstorm warning in 1995

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.