Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 110, NWS State College, PA

July 5, 1995Clearfield County, Elk County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 5, 1995, 1:54 PM EDT for Clearfield County, Elk County, Pennsylvania. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 5, 1995, 1:54 PM EDT (17:54 UTC)
Expired
Jul 5, 1995, 3:00 PM EDT
In force
66 min
Issued by
NWS State College, PA
Area
Whole counties

Counties Clearfield County, PA, Elk County, PA

The radar

The State College radar (KCCX), 57 km from the middle of the area, began a volume at 17:56 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, 5.9 hours before the alert went out and 157 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 1995-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 837 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 1995-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
837 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
827 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
52 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 Jul 5, 10:05 AM EDT, 3 hours 49 minutes earlier.

Area forecast discussion, Jul 5, 10:05 AM EDT, 3 hours 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1005 AM EDT WED JUL 5 1995

AS ALREADY MENTIONED...PIT RAOB VERY UNSTABLE WITH MODIFIED LI/S
OF -7 AND CAPES 2500 TO 3000.  SATELLITE SHOWS BREAKS IN THE
CLOUDS WEST AND CONSIDERABLE CLOUDS EAST.  IT MAY BE ALONG THE
BOUNDARY THAT WE SEE THE FOCUS FOR DEVELOPMENT THIS AFTERNOON.
IT SHOULD BE ANOTHER GOOD DAY FOR 88D PRECIP ESTIMATES...AS IT
SEEMS WITH THE HIGH WET BULB ZEROS THAT PRECIP IS RIGHT ON
TARGET.  FORECASTS LOOK GOOD.

TED

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 9:51 PM EDTSevere Thunderstorm WarningCTPFranklin54 min
Jul 5, 2:40 PM EDTFlash Flood WarningCTPCambria2 hr
Jul 5, 5:31 PM EDTSevere Thunderstorm WarningCTPElk59 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.