Alert archive / Pennsylvania / Tornado Warnings in 1994

Tornado Warning 2, NWS Pittsburgh, PA

June 11, 1994Clarion County, Pennsylvania

NWS Pittsburgh, PA issued this tornado warning at Jun 11, 1994, 7:04 PM EDT for Clarion County, Pennsylvania. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Jun 11, 1994, 7:04 PM EDT (23:04 UTC)
Expired
Jun 11, 1994, 7:45 PM EDT
In force
41 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Clarion County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.1 hours before the alert went out and 104 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 1994-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 442 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 1994-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.1939587897Sfc1 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
442 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPIT 112304
TORPIT
PAC031-112345-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
704 PM EDT SAT JUN 11 1994
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  745 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN WEST PENNSYLVANIA
 
   ...CLARION COUNTY
 
DOPPLER WEATHER RADAR INDICATED A TORNADO JUST SOUTHEAST EMLENTON IN
CLARION COUNTY. THE TORNADO IS MOVING EAST AT 30 MPH.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
DMW/PAJ

What forecasters said that day

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

In the hours before

Special weather statement, Jun 11, 4:35 PM EDT, 2 hours 29 minutes before
PAZ001>036-WV001>004-120000-

SPECIAL WEATHER STATEMENT -SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE PITTSBURGH PA
435 PM EDT SAT JUNE 11 1994

...SEVERE THUNDERSTORM WATCH FOR WESTERN PENNSYLVANIA AND THE NORTHERN
   PANHANDLE OF WEST VIRGINIA UNTIL 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN PENNSYLVANIA
AND THE NORTHERN PANHANDLE OF WEST VIRINGIA UNTIL SATURDAY 8 PM EDT.

...A FLASH FLOOD WARNING CONTINUES FOR SOMERSET COUTNY UNTIL 630 PM...

AT 430 PM...DOPPLER RADAR SHOWED ISOLATED STRONG THUNDERSTORMS ACROSS
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.  A TORNADO WAS REPORTED
IN CRAWFORD COUNTY NEAR BLOOMING VALLEY.

OTHER STRONG THUNDERSTORMS ARE IN ELK...NORTHERN VENANAGO...NORTHERN
SOMERSET...NORTHEN MERCER...AND IN ARMSTRONG COUNTY.  A COUPLE OTHER
STRONG STORMS WERE OVER NORTHERN WEST VIRGINIA.

THESE THUNDERSTORMS WRE MOVING TOWARD THE EAST-NORTHEAST AT 30 MPH.

THESE STORMS MAY PRODUCE VERY HEAVY DOWNPOURS...DAMAGING WINDS...
FREQUENT DANGEROUS LIGHTNING...AND HAIL.

IF THREATENING WEATHER APPROACHES...MOVE INDOORS OR TAKE SHELTER
BENEATH A STURDY STRUCTURE.  NEVER TRY TO DRIVE OR WALK THROUGH
FLOOD WATERS...YOU COULD BE SWEPT AWAY.

REHAK
Special weather statement, Jun 11, 4:35 PM EDT, 2 hours 29 minutes before
PAZ001>036-WV001>004-120000-

SPECIAL WEATHER STATEMENT -SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE PITTSBURGH PA
435 PM EDT SAT JUNE 11 1994

...SEVERE THUNDERSTORM WATCH FOR WESTERN PENNSYLVANIA AND THE NORTHERN
   PANHANDLE OF WEST VIRGINIA UNTIL 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN PENNSYLVANIA
AND THE NORTHERN PANHANDLE OF WEST VIRINGIA UNTIL SATURDAY 8 PM EDT.

...A FLASH FLOOD WARNING CONTINUES FOR SOMERSET COUTNY UNTIL 630 PM...

AT 430 PM...DOPPLER RADAR SHOWED ISOLATED STRONG THUNDERSTORMS ACROSS
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.  A TORNADO WAS REPORTED
IN CRAWFORD COUNTY NEAR BLOOMING VALLEY.

OTHER STRONG THUNDERSTORMS ARE IN ELK...NORTHERN VENANAGO...NORTHERN
SOMERSET...NORTHEN MERCER...AND IN ARMSTRONG COUNTY.  A COUPLE OTHER
STRONG STORMS WERE OVER NORTHERN WEST VIRGINIA.

THESE THUNDERSTORMS WRE MOVING TOWARD THE EAST-NORTHEAST AT 30 MPH.

THESE STORMS MAY PRODUCE VERY HEAVY DOWNPOURS...DAMAGING WINDS...
FREQUENT DANGEROUS LIGHTNING...AND HAIL.

IF THREATENING WEATHER APPROACHES...MOVE INDOORS OR TAKE SHELTER
BENEATH A STURDY STRUCTURE.  NEVER TRY TO DRIVE OR WALK THROUGH
FLOOD WATERS...YOU COULD BE SWEPT AWAY.

REHAK
Special weather statement, Jun 11, 5:53 PM EDT, 1 hour 11 minutes before
PAZ001>036-WV001>004-120000-

SPECIAL WEATHER STATEMENT - DOPPLER RADAR UPDATE
NATIONAL WEATHER SERVICE PITTSBURGH PA
550 PM EDT SAT JUNE 11 1994

...SEVERE THUNDERSTORM WATCH FOR WESTERN PENNSYLVANIA AND THE NORTHERN
   PANHANDLE OF WEST VIRGINIA UNTIL 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN PENNSYLVANIA
AND THE NORTHERN PANHANDLE OF WEST VIRINGIA UNTIL 8 PM THIS EVENING.

...A FLASH FLOOD WARNING CONTINUES FOR SOMERSET COUNTY UNTIL 630 PM...

AT 550 PM...DOPPLER RADAR SHOWED ISOLATED STRONG THUNDERSTORMS ACROSS
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.  THE STRONGEST STORMS
WERE IN MERCER COUNTY...JEFFERSON COUNTY...NORTHERN INDIANA COUNTY...IN
THE MON VELLEY NEAR CHARLEROI...IN SOUTHERN WESTMORELAND COUTNY...AND
SOUTHERN SOMERSET VALLEY.

THESE THUNDERSTORMS WRE MOVING TOWARD THE EAST-NORTHEAST AT 30 MPH.

THESE STORMS MAY PRODUCE VERY HEAVY DOWNPOURS...DAMAGING WINDS...
FREQUENT DANGEROUS LIGHTNING...AND HAIL.

IF THREATENING WEATHER APPROACHES...MOVE INDOORS OR TAKE SHELTER
BENEATH A STURDY STRUCTURE.  NEVER TRY TO DRIVE OR WALK THROUGH
FLOOD WATERS...YOU COULD BE SWEPT AWAY.

REMEMBER...LIGHTNING KILLS.

REHAK
Special weather statement, Jun 11, 5:53 PM EDT, 1 hour 11 minutes before
PAZ001>036-WV001>004-120000-

SPECIAL WEATHER STATEMENT - DOPPLER RADAR UPDATE
NATIONAL WEATHER SERVICE PITTSBURGH PA
550 PM EDT SAT JUNE 11 1994

...SEVERE THUNDERSTORM WATCH FOR WESTERN PENNSYLVANIA AND THE NORTHERN
   PANHANDLE OF WEST VIRGINIA UNTIL 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN PENNSYLVANIA
AND THE NORTHERN PANHANDLE OF WEST VIRINGIA UNTIL 8 PM THIS EVENING.

...A FLASH FLOOD WARNING CONTINUES FOR SOMERSET COUNTY UNTIL 630 PM...

AT 550 PM...DOPPLER RADAR SHOWED ISOLATED STRONG THUNDERSTORMS ACROSS
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.  THE STRONGEST STORMS
WERE IN MERCER COUNTY...JEFFERSON COUNTY...NORTHERN INDIANA COUNTY...IN
THE MON VELLEY NEAR CHARLEROI...IN SOUTHERN WESTMORELAND COUTNY...AND
SOUTHERN SOMERSET VALLEY.

THESE THUNDERSTORMS WRE MOVING TOWARD THE EAST-NORTHEAST AT 30 MPH.

THESE STORMS MAY PRODUCE VERY HEAVY DOWNPOURS...DAMAGING WINDS...
FREQUENT DANGEROUS LIGHTNING...AND HAIL.

IF THREATENING WEATHER APPROACHES...MOVE INDOORS OR TAKE SHELTER
BENEATH A STURDY STRUCTURE.  NEVER TRY TO DRIVE OR WALK THROUGH
FLOOD WATERS...YOU COULD BE SWEPT AWAY.

REMEMBER...LIGHTNING KILLS.

REHAK
Special weather statement, Jun 11, 6:02 PM EDT, 1 hour 2 minutes before
PAZ001>036-WV001>004-120000-

SPECIAL WEATHER STATEMENT - DOPPLER RADAR UPDATE...CORRECTED
NATIONAL WEATHER SERVICE PITTSBURGH PA
550 PM EDT SAT JUNE 11 1994

...SEVERE THUNDERSTORM WATCH FOR WESTERN PENNSYLVANIA AND THE NORTHERN
   PANHANDLE OF WEST VIRGINIA UNTIL 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN PENNSYLVANIA
AND THE NORTHERN PANHANDLE OF WEST VIRINGIA UNTIL 8 PM THIS EVENING.

...A FLASH FLOOD WARNING CONTINUES FOR SOMERSET COUNTY UNTIL 630 PM...

AT 550 PM...DOPPLER RADAR SHOWED ISOLATED STRONG THUNDERSTORMS ACROSS
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.  THE STRONGEST STORMS
WERE IN MERCER COUNTY...JEFFERSON COUNTY...NORTHERN INDIANA COUNTY...IN
THE MON VALLEY NEAR CHARLEROI...IN SOUTHERN WESTMORELAND COUNTY...AND
SOUTHERN SOMERSET COUNTY.

THESE THUNDERSTORMS WERE MOVING TOWARD THE EAST-NORTHEAST AT 30 MPH.

THESE STORMS MAY PRODUCE VERY HEAVY DOWNPOURS...DAMAGING WINDS...
FREQUENT DANGEROUS LIGHTNING...AND HAIL.

IF THREATENING WEATHER APPROACHES...MOVE INDOORS OR TAKE SHELTER
BENEATH A STURDY STRUCTURE.  NEVER TRY TO DRIVE OR WALK THROUGH
FLOOD WATERS...YOU COULD BE SWEPT AWAY.

REMEMBER...LIGHTNING KILLS.

REHAK
Special weather statement, Jun 11, 6:02 PM EDT, 1 hour 2 minutes before
PAZ001>036-WV001>004-120000-

SPECIAL WEATHER STATEMENT - DOPPLER RADAR UPDATE...CORRECTED
NATIONAL WEATHER SERVICE PITTSBURGH PA
550 PM EDT SAT JUNE 11 1994

...SEVERE THUNDERSTORM WATCH FOR WESTERN PENNSYLVANIA AND THE NORTHERN
   PANHANDLE OF WEST VIRGINIA UNTIL 8 PM...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR WESTERN PENNSYLVANIA
AND THE NORTHERN PANHANDLE OF WEST VIRINGIA UNTIL 8 PM THIS EVENING.

...A FLASH FLOOD WARNING CONTINUES FOR SOMERSET COUNTY UNTIL 630 PM...

AT 550 PM...DOPPLER RADAR SHOWED ISOLATED STRONG THUNDERSTORMS ACROSS
WESTERN PENNSYLVANIA AND NORTHERN WEST VIRGINIA.  THE STRONGEST STORMS
WERE IN MERCER COUNTY...JEFFERSON COUNTY...NORTHERN INDIANA COUNTY...IN
THE MON VALLEY NEAR CHARLEROI...IN SOUTHERN WESTMORELAND COUNTY...AND
SOUTHERN SOMERSET COUNTY.

THESE THUNDERSTORMS WERE MOVING TOWARD THE EAST-NORTHEAST AT 30 MPH.

THESE STORMS MAY PRODUCE VERY HEAVY DOWNPOURS...DAMAGING WINDS...
FREQUENT DANGEROUS LIGHTNING...AND HAIL.

IF THREATENING WEATHER APPROACHES...MOVE INDOORS OR TAKE SHELTER
BENEATH A STURDY STRUCTURE.  NEVER TRY TO DRIVE OR WALK THROUGH
FLOOD WATERS...YOU COULD BE SWEPT AWAY.

REMEMBER...LIGHTNING KILLS.

REHAK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 5:17 PM EDTSevere Thunderstorm WarningPBZJefferson43 min
Jun 11, 5:50 PM EDTSevere Thunderstorm WarningPBZWestmoreland40 min
Jun 11, 6:51 PM EDTSevere Thunderstorm WarningPBZClarion54 min
Jun 11, 7:36 PM EDTSevere Thunderstorm WarningPBZClarion39 min

Nearby

Tornado Warnings in Pennsylvania, 1994Every tornado warning in 1994Tornadoes in 1994

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.