Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 7, NWS State College, PA

May 8, 1992Adams County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 8, 1992, 8:15 PM EDT for Adams County, Pennsylvania. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
May 8, 1992, 8:15 PM EDT (00:15 UTC)
Expired
May 8, 1992, 8:45 PM EDT
In force
30 min
Issued by
NWS State College, PA
Area
Whole counties

County Adams County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.3 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, Washington/Dulle, VA at 00:00Z on 1992-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Washington/Dulle, VA at 00:00Z on 1992-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1029 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
-18 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 KHAR 090018
SVRHAR
PAC001-090045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HARRISBURG PA
815 PM EDT FRI MAY 8 1992
 
THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  845 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH CENTRAL PENNSYLVANIA
 
   ...NORTHERN ADAMS COUNTY
 
RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTHWEST OF GETTYSBURG
MOVING NORTHEAST AT 50 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.

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, May 8, 6:38 PM EDT, 1 hour 37 minutes before
PAZ009-013-090100-

SPECIAL WEATHER STATEMENT...THUNDERSTORMS
NATIONAL WEATHER SERVICE HARRISBURG PA
635  PM EDT FRI MAY 8 1992

...THUNDERSTORMS ARE RUMBLING INTO SOUTH CENTRAL PENNSYLVANIA...

AT 635 PM WEATHER RADAR IN HARRISBURG SHOWED AN AREA OF SHOWERS AND
THUNDERSTORMS IN NORTHERN VIRGINIA AND THE EASTERN PANHANDLE OF WEST
VIRGINIA FROM 20 MILES NORTHWEST OF MARTINSBURG WEST VIRGINIA SOUTHEAST
TOWARD THE NATIONS CAPITOL.

THE THUNDERSTORMS WERE MOVING NORTHWEST AT MORE THAN 40 MPH AND WILL BE MOVING
INTO WESTERN FRANKLIN COUNTY AROUND 745 PM AND INTO ADAMS COUNTY AROUND 900 PM.
THE THUNDERSTORMS MAY CONTAIN GUSTY WINDS AND DANGEROUS LIGHTNING AS WELL
AS BRIEF HEAVY DOWNPOURS AND HAIL.  BE PREPARED TO TAKE COVER IF THREATENING
WEATHER APPROACHES.

KOWALZYK
Special weather statement, May 8, 7:51 PM EDT, 24 minutes before
PAZ009-013-090300-

SPECIAL WEATHER STATEMENT...THUNDERSTORMS
NATIONAL WEATHER SERVICE HARRISBURG PA
750 PM  EDT FRI MAY 8 1992

...THUNDERSTORMS ARE RUMBLING INTO SOUTH CENTRAL PENNSYLVANIA...

AT 745 PM WEATHER RADAR IN HARRISBURG SHOWED A FAST MOVING LINE OF
THUNDERSTORMS IN NORTHERN MARYLAND AND FRANKLIN COUNTY OF SOUTH CENTRAL
PENNSYLVANIA.  THE LINE EXTENDED FROM NEAR LATROBE SOUTHEAST ACROSS
MERCERSBURG TO HAGERSTOWN AND SOUTHEAST ACROSS MARYLAND TO ABOUT 10 MILES
NORTH OF BALTIMORE.

THE THUNDERSTORMS WERE MOVING NORTH AT MORE THAN 40 MPH AND WILL BE MOVING
THROUGH FRANKLIN COUNTY AND INTO ADAMS COUNTY BY AROUND 800 PM AND INTO
YORK COUNTY AROUND 830 PM.  THE THUNDERSTORMS HAVE PRODUCED SMALL HAIL...BRIEF
HEAVY RAINS AND GUSTS TO 30 TO 40 MPH AS THEY MOVED THROUGH SOME MARYLAND
LOCATIONS.  BE PREPARED TO MOVE TO SHELTER IF THREATENING WEATHER APPROACHES.

KOWALZYK

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.