Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 101, NWS State College, PA

July 13, 1994Bradford County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 13, 1994, 2:38 PM EDT for Bradford County, Pennsylvania. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1994, 2:38 PM EDT (18:38 UTC)
Expired
Jul 13, 1994, 3:30 PM EDT
In force
52 min
Issued by
NWS State College, PA
Area
Whole counties

County Bradford County, PA

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.6 hours before the alert went out and 220 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, Buffalo Intl Airport, NY at 12:00Z on 1994-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 249 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, Buffalo Intl Airport, NY at 12:00Z on 1994-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.19395878Sfc1 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
249 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KIPT 131838
SVRIPT
PAC015-131930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
238 PM EDT WED JUL 13 1994
 
THE NATIONAL WEATHER SERVICE IN WILLIAMSPORT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL PENNSYLVANIA
 
   ...BRADFORD COUNTY
 
AT 235 PM EDT DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTH
OF TOWANDA. THE THUNDERSTORM WAS MOVING EAST AT 30 MPH. THE THUNDERSTORM
WILL BE MOVING THROUGH WYALUSING BY 3 PM EDT. THESE THUNDERSTORMS HAVE A
HISTORY OF PRODUCING LARGE HAIL AND WINDS IN EXCESS OF 60 MPH.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
 
NNNN

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.

In the hours before

Local storm report, Jul 13, 1:00 PM EDT, 1 hour 38 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
100 PM EDT WED JUL 13 1994

THE FOLLOWING EVENTS OCCURRED ON JULY 6, 1994

CITY/TOWN/       COUNTY      TIME     REPORT
VILLAGE                      /EDT

COLLEY           SULLIVAN    1520      DIME SIZE HAIL

COLLEY           SULLIVAN    1525      NUMEROUS TREES DOWN

SUGAR RUN        BRADFORD    1525      3/4 INCH HAIL

WILMONT TWP      BRADFORD    1555      PANTHER LICK ROAD WASHED OUT

CHERRYTOWN       BRADFORD    1609      TREES...POWER LINES DOWN/PEA
                                       SIZE HAIL

ATHENS TWP       BRADFORD    1620      NUMEROUS TREES DOWN THROUGHOUT
                                       THE TOWNSHIP

TIOGA            TIOGA       1629      3/4 INCH HAIL/TREES DOWN

GALETON          TIOGA       1630      SHED ROOFS BLOWN OFF/TREES DOWN

WESTFIELD        TIOGA       1635      TREES DOWN

WELLSBORO        TIOGA       1700      TREES/ POWER LINES DOWN

WESTFIELD        TIOGA       1715      RT 249 CLOSED DUE TO HIGH WATER

MAINSFIELD       TIOGA       1730      NUMEROUS STREETS FLOODED

RENOVO           CLINTON     1735      TREES DOWN

TROUT RUN        LYCOMING    1731      LARGE TREE DOWN

TROUT RUN        LYCOMING    1736      METAL SHED BLOWN ON ELECTRICAL
                                       LINES

WILLIAMSPORT     LYCOMING    1745      WINDOW BLOWN OUT/ROOF DAMAGE
                                       WIRES DOWN

MONTGOMERY       LYCOMING    1752      WIRES DOWN

SOUTH WILLIASMPORT LYCOMING  1752      TREES/WIRES DOWN

MUNCY            LYCOMING    1805      TREES DOWN

PENNSDALE        LYCOMING    1815      TREES/WIRES DOWN

DUSHORE          SULLIVAN    1820      TREES DOWN

BRADFORD COUNTY RECEIVED THE MOST DAMAGE FROM THIS SEVERE WEATHER
EVENT.  A LARGE PART OF THE COUNTY WAS WITHOUT POWER FOR SEVERAL HOURS
THAT NIGHT DUE TO WIND AND LIGHTNING DAMAGE.  FLASH FLOODING MADE 6
ROADS IN WILMOT TOWNSHIP IMPASSABLE FOR MUCH OF THE NIGHT.

GOUGH
Local storm report, Jul 13, 1:00 PM EDT, 1 hour 38 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
100 PM EDT WED JUL 13 1994

THE FOLLOWING EVENTS OCCURRED ON JULY 6, 1994

CITY/TOWN/       COUNTY      TIME     REPORT
VILLAGE                      /EDT

COLLEY           SULLIVAN    1520      DIME SIZE HAIL

COLLEY           SULLIVAN    1525      NUMEROUS TREES DOWN

SUGAR RUN        BRADFORD    1525      3/4 INCH HAIL

WILMONT TWP      BRADFORD    1555      PANTHER LICK ROAD WASHED OUT

CHERRYTOWN       BRADFORD    1609      TREES...POWER LINES DOWN/PEA
                                       SIZE HAIL

ATHENS TWP       BRADFORD    1620      NUMEROUS TREES DOWN THROUGHOUT
                                       THE TOWNSHIP

TIOGA            TIOGA       1629      3/4 INCH HAIL/TREES DOWN

GALETON          TIOGA       1630      SHED ROOFS BLOWN OFF/TREES DOWN

WESTFIELD        TIOGA       1635      TREES DOWN

WELLSBORO        TIOGA       1700      TREES/ POWER LINES DOWN

WESTFIELD        TIOGA       1715      RT 249 CLOSED DUE TO HIGH WATER

MAINSFIELD       TIOGA       1730      NUMEROUS STREETS FLOODED

RENOVO           CLINTON     1735      TREES DOWN

TROUT RUN        LYCOMING    1731      LARGE TREE DOWN

TROUT RUN        LYCOMING    1736      METAL SHED BLOWN ON ELECTRICAL
                                       LINES

WILLIAMSPORT     LYCOMING    1745      WINDOW BLOWN OUT/ROOF DAMAGE
                                       WIRES DOWN

MONTGOMERY       LYCOMING    1752      WIRES DOWN

SOUTH WILLIASMPORT LYCOMING  1752      TREES/WIRES DOWN

MUNCY            LYCOMING    1805      TREES DOWN

PENNSDALE        LYCOMING    1815      TREES/WIRES DOWN

DUSHORE          SULLIVAN    1820      TREES DOWN

BRADFORD COUNTY RECEIVED THE MOST DAMAGE FROM THIS SEVERE WEATHER
EVENT.  A LARGE PART OF THE COUNTY WAS WITHOUT POWER FOR SEVERAL HOURS
THAT NIGHT DUE TO WIND AND LIGHTNING DAMAGE.  FLASH FLOODING MADE 6
ROADS IN WILMOT TOWNSHIP IMPASSABLE FOR MUCH OF THE NIGHT.

GOUGH
Special weather statement, Jul 13, 2:00 PM EDT, 38 minutes before
PAZ012-037-038-041-042-045-046-049>052-131900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
200 PM EDT WED JUL 13 199

...THUNDERSTORMS DEVELOPING RAPIDLY OVER NORTHERN PENNSYLVANIA...

AT 155 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A RAPIDLY
DEVELOPING LINE OF THUNDERSTORMS THAT EXTENDED FROM ELKLAND IN TIOGA
COUNTY TO JUST SOUTHWEST OF GALETON IN POTTER COUNTY. A THUNDERSTORM
WITH VERY HEAVY RAIN WAS IN THIS LINE JUST TO THE SOUTHWEST OF
ELKLAND.   THE THUNDERSTORMS WERE MOVING TO THE EAST AT 25 MPH.  THE
THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH TIOGA COUNTY THROUGH 245
PM EDT. OTHER THUNDERSTORMS COULD DEVLOPE OVER BRADFORD COUNTY BETWEEN
2 AND 3 PM EDT.

ANY OF THE THUNDERSTORMS COULD CONTAIN STRONG GUSTY WINDS...HAIL AND
VERY HEAVY DOWNPOURS. FREQUENT DANGEROUS LIGHTNING IS ALSO POSSIBLE
WITH THESE THUNDERSTORMS.

PERSONS IN THE PATH OF THESE THUNDERSTORMS SHOULD REMAIN ALERT AND
TAKE SHELTER @IF THREATENING WEATHER APPROACHES.  REMEMBER THE SAFEST
PLACE TO BE IN A THUNDERSTORMS IS INSIDE A STRONG BUILDING AND AWAY
FROM WINDOWS.

GOUGH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 2:15 PM EDTSevere Thunderstorm WarningCTPTioga30 min
Jul 13, 4:45 PM EDTSevere Thunderstorm WarningCTPBradford45 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1994Every severe thunderstorm warning 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.