Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 73, NWS State College, PA

September 10, 1992Lycoming County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Sep 10, 1992, 4:04 PM EDT for Lycoming County, Pennsylvania. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
Sep 10, 1992, 4:04 PM EDT (20:04 UTC)
Expired
Sep 10, 1992, 5:00 PM EDT
In force
56 min
Issued by
NWS State College, PA
Area
Whole counties

County Lycoming County, PA

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.1 hours before the alert went out and 222 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 1992-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 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 1992-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 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
61 J/kg
Mixed-layer CIN
-224 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
221 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 KIPT 102004
SVRIPT
PAC081-102100-

BULLETIN-IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
404 PM EDT THU SEP 10 1992       

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 500 EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

NORTHCENTRAL PENNSYLVANIA...LYCOMING 

AT 400 PM EDT LYCOMING COUNTY EMERGENCY MANAGEMENT AGENCY REPORTS
TRESS DOWN IN HEPBURN AND LYCOMING TOWNSHIPS IN LYCOMING COUNTIES. A
TREE WAS REPORTED INTO A TRAILER IN HEPBURN TOWNSHIP. THE
THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH.

THESE THUNDERSTORMS WILL LIKELY PRODUCE DAMAGING WINDS..HAIL..HEAVY
RAIN AND DANGEROUS LIGHTNING.  A SEVERE THUNDERSTORM PRODUCES WINDS IN
EXCESS OF 58 MPH AND/OR HAIL 3/4 INCH OR LARGER IN DIAMETER.

IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY.  TO REPORT SEVERE WEATHER CALL THE NEAREST LAW
ENFORCEMENT AGENCY OR EMERGENCY MANAGEMENT OFFICE AND ASK THEM TO
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

FJG/TG/KJF

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

Special weather statement, Sep 10, 2:22 PM EDT, 1 hour 42 minutes before
PAZ006-008-009-013-014-090200-
SPECIAL WEATHER STATEMENT...SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE HARRISBURG PA
215 PM EDT THU SEP 10 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL AND
PORTIONS OF EASTERN PENNSYLVANIA UNTIL 800 PM...
...A FLOOD WATCH FOR STREAMS AND CREEKS IS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTH CENTRAL PENNSYLVANIS UNTIL 800 PM...

AT 210 PM EDT HARRISBURG RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM
NEAR ELMIRA NEW YORK SOUTHWEST ACROSS POTTER AND CAMERON COUNTIES IN THE
NORTH CENTRAL MOUNTAINS...CLEARFIELD COUNTY IN THE NORTHERN MOUNTAINS...
AND CAMBRIA AND SOMERSET COUNTY IN THE LAUREL MOUTAINS.

THE STORMS WERE MOVING EAST AT AROUND 30 MPH. THEY WILL BE MOVING ACROSS CENTRE
COUNTY BETWEEN 215 AND 400 PM REACHING THE STATE COLLEGE AREA BETWEEN 245 AND
300 PM.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER AS THESE
STORMS APPROACH.  THE STORMS MAY PRODUCE DANGEROUSLY STRONG GUSTY WINDS...
HAIL...HEAVY RAIN AND DEADLY LIGHTNING.

STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS
ON THIS POTENTIALLY SEVERE WEATHER SITUATION.

PRA
Special weather statement, Sep 10, 2:25 PM EDT, 1 hour 39 minutes before
PAZ006-008-009-013-014-102000-
SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE HARRISBURG PA
215 PM EDT THU SEP 10 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL AND
PORTIONS OF EASTERN PENNSYLVANIA UNTIL 800 PM...
...A FLOOD WATCH FOR STREAMS AND CREEKS IS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTH CENTRAL PENNSYLVANIS UNTIL 800 PM...

AT 210 PM EDT HARRISBURG RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM
NEAR ELMIRA NEW YORK SOUTHWEST ACROSS POTTER AND CAMERON COUNTIES IN THE
NORTH CENTRAL MOUNTAINS...CLEARFIELD COUNTY IN THE NORTHERN MOUNTAINS...
AND CAMBRIA AND SOMERSET COUNTY IN THE LAUREL MOUTAINS.

THE STORMS WERE MOVING EAST AT AROUND 30 MPH. THEY WILL BE MOVING ACROSS CENTRE
COUNTY BETWEEN 215 AND 400 PM REACHING THE STATE COLLEGE AREA BETWEEN 245 AND
300 PM.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER AS THESE
STORMS APPROACH.  THE STORMS MAY PRODUCE DANGEROUSLY STRONG GUSTY WINDS...
HAIL...HEAVY RAIN AND DEADLY LIGHTNING.

STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS
ON THIS POTENTIALLY SEVERE WEATHER SITUATION.

PRA
Special weather statement, Sep 10, 2:27 PM EDT, 1 hour 37 minutes before
PAZ007-008-014-101930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
227 PM EDT THU SEP 10 1992

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM EDT FOR ALL OF
NORTHCENTRAL PENNSYLVANIA...

AT 220 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS THAT EXTENDED FROM WESTFIELD IN TIOGA COUNTY TO KEATING IN
CLINTON COUNTY THEN TO PHILLIPSBURG AND ALTOONA. STRONGEST THUNDERSTORMS
WERE 10 MILES WEST OF WELLSBORO...15 MILES WEST OF RENOVO AND 10 MILES
SOUTHWEST OF KEATING. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MPH
AND THE LINE WAS MOVING EAST AT 30 MPH. THE THUNDERSTORMS WILL BE MOVING
INTO WESTERN LYCOMING COUNTY BY 315 PM EDT. STRONG GUSTY WINDS...LARGE
HAIL...DANGEROUS LIGHTNING AND VERY HEAVY RAIN WILL ACCOMPANY THIS LINE
AS IT MOVES THROUGH NORTHCENTRAL PENNSYLVANIA.

PERSONS IN THE PATH OF THESE THUNDERSTORMS SHOULD BE ON THE ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER IF THREATENING
WEATHER APPROACHES. EVERYONE SHOULD STAY TUNED TO NOAA WEATHER RADIO
OR LOCAL RADIO OR T.V. FOR LATER STATEMENTS OR POSSIBLE WARNINGS.

FJG/TG

NNNN
Special weather statement, Sep 10, 3:08 PM EDT, 56 minutes before
PAZ006-008-009-013-014-102030-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA
300 PM EDT THU SEP 10 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL AND
PORTIONS OF EASTERN PENNSYLVANIA UNTIL 800 PM...
...A FLOOD WATCH FOR STREAMS AND CREEKS IS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTH CENTRAL PENNSYLVANIA UNTIL 800 PM...

AT 300 PM EDT HARRISBURG RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM
CLINTON COUNTY...SOUTH TO NEAR STATE COLLEGE IN CENTRE COUNTY...TO 5 MILES
WEST OF HUNTINGDON IN HUNTINGDON AND EASTERN BLAIR COUNTY...TO NORTHERN
BEDFORD AND EASTERN SOMERSET COUNTIES.

THE STRONGEST STORM WAS LOCATED 5 MILES WEST OF HUNTINGDON ALONG THE HUNTINGDON
AND BLAIR COUNTY LINE.  THIS STORM WILL REACH THE HUNTINGDON AND MOUNT UNION
AREAS BETWEEN 310 AND 320 PM...CROSS HUNTINGDON COUNTY BETWEEN 300 AND 345 PM
...AND ENTER MIFFLIN AND JUNIATA COUNTIES AROUND 345 PM.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER AS THESE
STORMS APPROACH.  THESE STORMS MAY PRODUCE DANGEROUSLY STRONG GUSTY WINDS...
HAIL...HEAVY RAIN AND DEADLY LIGHTNING.

STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS
ON THIS P*OTENTIALLY SEVERE WEATHER SITUATION.

PRA
Special weather statement, Sep 10, 3:57 PM EDT, 7 minutes before
PAZ007-008-014-102100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
357 PM EDT THU SEP 10 1992

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF NORTHCENTRAL
PENNSYLVANIA UNTIL 8 PM EDT...

AT 350 PM EDT NATIONAL WEATHER SEVICE RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS MOVING THROUGH NORTHCENTRAL PENNSYLVANIA. THIS LINE
EXTENDED FROM TROY IN BRADFORD COUNTY...THEN TO TROUT RUN AND JERSEY
SHORE IN LYCOMING COUNTY THEN SOUTHWEST TO LEWISTOWN AND ALTOONA. THE
STRONGEST THUNDERSTORMS WERE FROM TROUT RUN TO LEWISTOWN. THE
THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH AND THE LINE WAS MOVING
EAST AT 25 MPH. THE THUNDERSTORMS WILL BE MOVING INTO EASTERN BRADFORD
COUNTIES BY 420 PM EDT. STRONG GUSTY WINDS...LARGE HAIL DANGEROUS
LIGHTNING AND VERY HEAVY RAIN WILL ACCOMPANY THIS LINE AS IT MOVES
THROUGH NORTHCENTRAL PENNSYLVANIA.

PERSONS IN THE PATH OF THESE THUNDERSTORMS SHOULD BE ON THE ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER IF THREATENING
WEATHER APPROACHES. EVERYONE SHOULD STAY TUNED NOAA WEATHER RADIO OR
LOCAL RADIO T.V. FOR LATER STATEMENTS OR POSSIBLE WARNINGS.

FJG/TG

NNNN
Special weather statement, Sep 10, 4:02 PM EDT, 2 minutes before
PAZ006-008-009-013-102130-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA
400 PM EDT THU SEP 10 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL AND
PORTIONS OF EASTERN PENNSYLVANIA UNTIL 800 PM...
...A FLOOD WATCH FOR STREAMS AND CREEKS IS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTH CENTRAL PENNSYLVANIA UNTIL 800 PM...

AT 350 PM EDT HARRISBURG RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM
EASTERN CLINTON COUNTY...SOUTH ACROSS EASTERN CENTRE COUNTY...TO 5 MILES WEST
OF LEWISTOWN IN MIFFLIN COUNTY...TO 10 MILES WEST OF ORBISONIA IN HUNTINGDON
COUNTY...TO AROUND EVERETT IN BEDFORD COUNTY...AND ON SOUTH INTO MARYLAND.

THE STRONGEST STORM WAS LOCATED 10 MILES WEST OF ORBISONIA IN HUNTINGDON COUNTY.THIS STORM WILL CROSS CENTRAL HUNTINGDON COUNTY PASSING NEAR THE ORBISONIA
AND MOUNT UNION AREAS BETWEEN 400 PM AND 445 PM...AND THEN ENTER WESTERN
MIFFLIN AND JUNIATA COUNTIES BETWEEN 445 PM AND 500 PM.  OTHER STRONG STORMS
WERE LOCATED IN MIFFLIN COUNTY AND CENTRAL BEDFORD COUNTY.

THESE STORMS ARE MOVING TO THE EAST AT AROUND 35 MILES PER HOUR.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND TAKE SHELTER AS THESE
STORMS APPROACH.  THESE STORMS MAY PRODUCE DANGEROUSLY STRONG GUSTY WINDS...
HAIL...HEAVY RAIN AND DEADLY LIGHTNING.  SOME AREAS ARE REPORTING RAINFALL
OF NEAR 1.00 INCH IN LESS THAN AN HOUR WHICH MAY CAUSE PONDING OF WATER
ON ROADWAYS AND MINOR FLOODING IN POOR DRAINAGE AREAS.

STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS
ON THIS POTENTIALLY SEVERE WEATHER SITUATION.

PRA

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 10, 3:59 PM EDTSevere Thunderstorm WarningCTPBradford61 min
Sep 10, 4:32 PM EDTSevere Thunderstorm WarningCTPFulton58 min
Sep 10, 4:43 PM EDTSevere Thunderstorm WarningCTPFranklin62 min
Sep 10, 7:09 PM EDTSevere Thunderstorm WarningCTPPike66 min
Sep 10, 7:11 PM EDTSevere Thunderstorm WarningCTPMonroe64 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1992Every severe thunderstorm warning in 1992

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.