Alert archive / Pennsylvania / Tornado Warnings in 2014

Tornado Warning 3, NWS Pittsburgh, PA

July 8, 2014Mercer County, Venango County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jul 8, 2014, 2:47 PM EDT for Mercer County, Venango County, Pennsylvania. It was in force for 32 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 8, 2014, 2:47 PM EDT (18:47 UTC)
Expired
Jul 8, 2014, 3:19 PM EDT
In force
32 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon

Counties Mercer County, PA, Venango County, PA

The radar

The Pittsburgh radar (KPBZ), 92 km from the middle of the area, began a volume at 18:48 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.

What was reported inside it

TimeReportWhereRemark
Jul 8, 2:48 PM EDTTORNADO2 E Greenfield, PADAMAGE FROM AN EF-1 TORNADO WITH MAXIMUM WINDS OF APPROXIMATELY 90MPH WAS NOTED ALONG THE DAMAGE PATH. NUMEROUS TREES WERE SNAPPED AND UPROOTED. ROOF DAMAGE TO BARNS AND SINGLE FAMILY HOMES.
Jul 8, 2:49 PM EDTTORNADOHoagland, PADAMAGE FROM A MAXIMUM EF-1 TORNADO WITH MAXIMUM WINDS OF APPROXIMATELY 90 MPH WAS NOTED EXTENDING DOWN STATE ROUTE 318 FROM NEAR ORCHARD ROAD TO NEAR STONE BASE ROAD.
Jul 8, 2:52 PM EDTTSTM WND DMGHoagland, PATREES DOWN ON HOUSE
Jul 8, 3:05 PM EDTTSTM WND DMGJackson Center, PAROOFS TORN OFF HOUSES

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 8, 1:04 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 6.8 hours before the alert went out and 105 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 2014-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 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, Pittsburgh, PA at 12:00Z on 2014-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 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
96 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
205 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.

430 
WFUS51 KPBZ 081847
TORPBZ
PAC085-121-081930-
/O.NEW.KPBZ.TO.W.0003.140708T1847Z-140708T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
247 PM EDT TUE JUL 8 2014

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* TORNADO WARNING FOR...
  MERCER COUNTY IN NORTHWEST PENNSYLVANIA...
  WESTERN VENANGO COUNTY IN NORTHWEST PENNSYLVANIA...

* UNTIL 330 PM EDT

* AT 245 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS NEAR HERMITAGE...MOVING NORTHEAST AT 50 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR.

  IMPACT...FLYING DEBRIS...STRUCTURAL DAMAGE.

* LOCATIONS IMPACTED INCLUDE...
  HERMITAGE...          MERCER...             FREDONIA...
  STONEBORO...          MAURICE K GODDARD STATE PARK...
  POLK...               SUGARCREEK...         FRANKLIN...
  COOPERSTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS.

PLEASE REPORT SEVERE WEATHER BY CALLING...412-262-1988...POSTING TO
THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

LAT...LON 4154 7988 4132 7972 4112 8042 4125 8050
TIME...MOT...LOC 1846Z 243DEG 43KT 4121 8034

$$

07
3 follow-up statements
469 
WWUS51 KPBZ 081859
SVSPBZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
259 PM EDT TUE JUL 8 2014

PAC085-121-081930-
/O.CON.KPBZ.TO.W.0003.000000T0000Z-140708T1930Z/
MERCER PA-VENANGO PA-
259 PM EDT TUE JUL 8 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR VENANGO
AND MERCER COUNTIES...

AT 256 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR MERCER...MOVING NORTHEAST AT 50 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR.

  IMPACT...FLYING DEBRIS...STRUCTURAL DAMAGE.

* LOCATIONS IMPACTED INCLUDE...
  MERCER...             FREDONIA...           STONEBORO...
  MAURICE K GODDARD STATE PARK...             POLK...
  SUGARCREEK...         FRANKLIN...           COOPERSTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.

PLEASE REPORT SEVERE WEATHER BY CALLING...412-262-1988...POSTING TO
THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

LAT...LON 4133 8034 4154 7988 4132 7972 4116 8027
TIME...MOT...LOC 1859Z 243DEG 43KT 4128 8015

$$

07
753 
WWUS51 KPBZ 081913
SVSPBZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
313 PM EDT TUE JUL 8 2014

PAC085-121-081930-
/O.CON.KPBZ.TO.W.0003.000000T0000Z-140708T1930Z/
MERCER PA-VENANGO PA-
313 PM EDT TUE JUL 8 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR VENANGO
AND MERCER COUNTIES...

AT 312 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR POLK...MOVING NORTHEAST AT 50 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR.

  IMPACT...FLYING DEBRIS...STRUCTURAL DAMAGE.

* LOCATIONS IMPACTED INCLUDE...
  MAURICE K GODDARD STATE PARK...             POLK...
  SUGARCREEK...         FRANKLIN...           COOPERSTOWN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.

PLEASE REPORT SEVERE WEATHER BY CALLING...412-262-1988...POSTING TO
THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

&&

LAT...LON 4142 8015 4154 7988 4132 7972 4123 8003
TIME...MOT...LOC 1913Z 243DEG 43KT 4136 7995

$$
265 
WWUS51 KPBZ 081919
SVSPBZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
319 PM EDT TUE JUL 8 2014

PAC085-121-081929-
/O.CAN.KPBZ.TO.W.0003.000000T0000Z-140708T1930Z/
MERCER PA-VENANGO PA-
319 PM EDT TUE JUL 8 2014

...THE TORNADO WARNING IS CANCELLED FOR VENANGO AND MERCER
COUNTIES...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED. THUS THE
TORNADO WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
TUESDAY EVENING FOR WESTERN MARYLAND AND EAST CENTRAL OHIO AND
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.

PLEASE REPORT SEVERE WEATHER BY CALLING...412-262-1988...POSTING TO
THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH.

LAT...LON 4142 8015 4154 7988 4132 7972 4123 8003
TIME...MOT...LOC 1919Z 243DEG 43KT 4139 7986

$$

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 2:43 PM EDTSevere Thunderstorm WarningPBZAllegheny, Armstrong, Butler, Indiana, Jefferson, Westmoreland62 min
Jul 8, 2:45 PM EDTSevere Thunderstorm WarningPBZArmstrong, Beaver, Butler, Clarion, Lawrence60 min
Jul 8, 3:12 PM EDTTornado WarningPBZArmstrong, Butler, Clarion33 min
Jul 8, 3:41 PM EDTSevere Thunderstorm WarningPBZIndiana, Jefferson34 min
Jul 8, 4:03 PM EDTSevere Thunderstorm WarningPBZIndiana, Westmoreland27 min
Jul 8, 7:15 PM EDTSevere Thunderstorm WarningPBZGreene45 min

Nearby

Tornado Warnings in Pennsylvania, 2014Every tornado warning in 2014Tornadoes in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.