Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 110, NWS Cleveland, OH

July 20, 1992Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 20, 1992, 1:30 PM EDT for Erie County, Pennsylvania. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 20, 1992, 1:30 PM EDT (17:30 UTC)
Expired
Jul 20, 1992, 2:30 PM EDT
In force
60 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Erie County, PA

What was reported inside it

TimeReportWhereRemark
Jul 20, 2:20 PM EDTHail 0.75Erie, PA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.5 hours before the alert went out and 146 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 1992-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 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 1992-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
49 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1178 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
224 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 KERI 201733
SVRERI
PAC049-201830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ERIE PA
130 PM EDT MON JUL 20 1992
 
THE NATIONAL WEATHER SERVICE IN ERIE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN NORTHWEST PENNSYLVANIA
 
   ...ERIE COUNTY
 
AND AJACENT LAKE ERIE WATERS
 
 
AT 125 PM EDT WEATHER RADAR SHOWED A SEVERE THUNDERSTORM ABOUT 8 MILES
SOUTH OF ERIE PENNSYLVANIA. THIS STORM IS MOVING IS MOVING TO THE
EAST AT 3O MILES AN HOUR.
 
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

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, Jul 20, 1:13 PM EDT, 17 minutes before
PAZOO1-002-201900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ERIE, PA
105 PM EDT MON JUL 20 1992

...STRONG THUNDERSTORMS FORMING OVER PARTS OF NORTHWEST PENNSYLVANIA...

AT 1PM EDT WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS THAT EXTENDED FROM
CHAUTAUQUA COUNTY...NEW YORK STATE TO JUST SOUTH OF ERIE PENNSYLVANIA TO
CENTRAL ASHTABULA COUNTY OHIO.  THE THUNDERSTORMS WERE MOVING TO THE EAST
AT 35 MILES AN HOUR.   THE STORMS THAT DEVELOPED JUST SOUTH OF ERIE PRODUCED
VERY HEAVY RAIN...INTENSE LIGHTNING AND WIND GUSTS TO 50 MILES AN HOUR.

THE AIR OVER WESTERN PENNSYLVANIA HAS BECOME VERY WARM AND UNSTABLE AND
MORE THUNDERSTORMS WILL DEVELOP DURING THE AFTERNOON AND EVENING HOURS.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES OR POSSIBLE WARNING
FROM THE NATIONAL WEATHER SERVICE.

TJP/RAR

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 2:25 PM EDTSevere Thunderstorm WarningCLEVenango, Warren65 min
Jul 20, 3:14 PM EDTSevere Thunderstorm WarningCLELawrence61 min
Jul 20, 5:57 PM EDTFlash Flood WarningCLEForest, Venango, Warren3 hr
Jul 20, 6:15 PM EDTFlash Flood WarningCLECrawford2 hr
Jul 20, 6:15 PM EDTSevere Thunderstorm WarningCLECrawford2 hr
Jul 20, 6:27 PM EDTFlash Flood WarningCLECameron, Elk, McKean3 hr

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.