Alert archive / Pennsylvania / Tornado Warnings in 1995

Tornado Warning 11, NWS Pittsburgh, PA

July 15, 1995Butler County, Venango County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jul 15, 1995, 9:07 PM EDT for Butler County, Venango County, Pennsylvania. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jul 15, 1995, 9:07 PM EDT (01:07 UTC)
Expired
Jul 15, 1995, 10:00 PM EDT
In force
53 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Butler County, PA, Venango County, PA

The radar

The Pittsburgh radar (KPBZ), 77 km from the middle of the area, began a volume at 01:16 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 00:00Z, 1.1 hours before the alert went out and 86 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 00:00Z on 1995-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2889 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 00:00Z on 1995-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
2889 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1586 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-14 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 
TTAA00 KPIT 160107
TORPIT
PAC121-019-160200-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
907 PM EDT SAT JUL 15 1995
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1000 PM EDT
FOR THE FOLLOWING LOCATIONS...
 
IN NORTHWEST PENNSYLVANIA
 
   ...VENANGO COUNTY
 
IN WEST PENNSYLVANIA
 
   ...BUTLER COUNTY
 
WEATHER RADAR SHOWED INDICATIONS OF A TORNADO FORMING OVER NORTHWEST
BUTLER COUNTY...MOVING EAST AT 10 MPH. THE SEVERE STORM BEARING THIS
TORNADO WILL AFFECT SOUTHERN VENANGO COUNTY ALSO.
 
 
 
 
 
THIS DANGEROUS STORM CAN CAUSE VERY DAMAGING WIND...TORNADOES...
LARGE HAIL...DEADLY LIGHTNING...TORRENTIAL RAIN AND FLASH FLOODING.
SEEK SAFETY IN STRONG BUILDINGS AWAY FROM WINDOWS. IF CAUGHT
OUTSIDE...CROUCH DOWN AND COVER YOUR HEAD. ABANDON VEHICLES. NEVER
TRY TO OUTRUN TORNADOES. NEVER CROSS FLOODING TO GO TO HIGH GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:06 PM EDTFlash Flood WarningPBZBeaver, Lawrence2 hr
Jul 15, 8:06 PM EDTFlash Flood WarningPBZButler2 hr
Jul 15, 8:06 PM EDTSevere Thunderstorm WarningPBZBeaver, Butler, Lawrence2 hr
Jul 15, 8:19 PM EDTFlash Flood WarningPBZAllegheny116 min
Jul 15, 8:19 PM EDTSevere Thunderstorm WarningPBZAllegheny116 min
Jul 15, 8:22 PM EDTSevere Thunderstorm WarningPBZAllegheny113 min
Jul 15, 8:30 PM EDTSevere Thunderstorm WarningPBZArmstrong, Clarion60 min
Jul 15, 8:59 PM EDTFlash Flood WarningPBZMercer2 hr
Jul 15, 8:59 PM EDTSevere Thunderstorm WarningPBZMercer2 hr
Jul 15, 9:18 PM EDTSevere Thunderstorm WarningPBZIndiana42 min
Jul 15, 9:18 PM EDTSevere Thunderstorm WarningPBZWashington42 min
Jul 15, 9:28 PM EDTSevere Thunderstorm WarningPBZClarion, Forest62 min
Jul 15, 9:28 PM EDTSevere Thunderstorm WarningPBZArmstrong62 min
Jul 15, 9:50 PM EDTSevere Thunderstorm WarningPBZVenango40 min
Jul 15, 10:03 PM EDTSevere Thunderstorm WarningPBZIndiana, Westmoreland57 min
Jul 15, 10:10 PM EDTFlash Flood WarningPBZButler, Mercer2 hr
Jul 15, 10:20 PM EDTSevere Thunderstorm WarningPBZFayette, Greene, Washington55 min
Jul 15, 10:40 PM EDTFlash Flood WarningPBZVenango65 min
Jul 15, 10:40 PM EDTFlash Flood WarningPBZLawrence65 min
Jul 15, 10:55 PM EDTFlash Flood WarningPBZIndiana2 hr
Jul 15, 10:55 PM EDTFlash Flood WarningPBZFayette, Greene2 hr
Jul 15, 10:55 PM EDTSevere Thunderstorm WarningPBZFayette, Greene2 hr
Jul 15, 10:55 PM EDTSevere Thunderstorm WarningPBZIndiana2 hr

Nearby

Tornado Warnings in Pennsylvania, 1995Every tornado warning in 1995Tornadoes 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.