Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 49, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jun 18, 1993, 4:44 PM EDT for Lawrence County, Pennsylvania. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Jun 18, 1993, 4:44 PM EDT (20:44 UTC)
- Expired
- Jun 18, 1993, 5:45 PM EDT
- In force
- 61 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Lawrence County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 8.7 hours before the alert went out and 68 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.
- Mixed-layer CAPE
- 42 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1310 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KYNG 182048 SVRCLE PAC073-182145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE YOUNGSTOWN OH 444 PM EDT FRI JUN 18 1993 THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST PENNSYLVANIA ...LAWRENCE COUNTY AT 445 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM IN EASTERN MAHONING COUNTY NEAR THE CITY OF YOUNGSTOWN. THE STORM WAS MOVING TO THE EAST AT 25 MPH. THIS STORM WILL MOVE INTO THE NEW CASTLE AND ELLWOOD CITY AREAS BY 500 PM. 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. MITCHELL
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, Jun 18, 2:44 PM EDT, 2 hours before
PAZ003-182000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 237 PM EDT FRI JUN 18 1993 ...THUNDERSTORMS DEVELOPING IN NORTHWEST PENNSYLVANIA... AT 235 THIS AFTERNOON WEATHER RADAR SHOWED SHOWERS AND THUNDERSTORMS DEVELOPING IN NORTHWEST PENNSYLVANIA FROM EASTERN MERCER COUNTY EASTWARD INTO VENANGO COUNTY NEAR OIL CITY AND FRANKLIN. THIS PRECIPITATION WAS MOVING EASTWARD AROUND 20 MILES AN HOUR AND WILL BE AFFECTING VENANGO COUNTY FOR THE NEXT HOUR OR TWO. THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING...BRIEF HEAVY DOWNPOURS... GUSTY WINDS AND SMALL HAIL. THE AIRMASS OVER WESTERN PENNSYLVANIA IS VERY WARM AND UNSTABLE AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE AFTERNOON. PARRISH/BELK
Special weather statement, Jun 18, 3:20 PM EDT, 1 hour 24 minutes before
PAZ002-003-182100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 320 PM EDT FRI JUN 18 1993 ...THUNDERSTORMS CONTINUE TO DEVELOP IN NORTHWEST PENNSYLVANIA... AT 315 THIS AFTERNOON WEATHER RADAR SHOWED SHOWERS AND THUNDERSTORMS ALONG THE ALLEGENY RIVER FROM JUST EAST OF WARREN SOUTHWESTWARD SOUTHERN VENANGO COUNTY. STRONGEST THUNDERSTORMS WERE OCCURRING FROM TIONESTA SOUTHWARD THROUGH EASTERN VENANGO COUNTY. PRECIPITATION WAS MOVING EASTWARD AROUND 20 MILES AN HOUR AND WILL BE AFFECTING EASTERN VENANGO...FOREST AND CLARION COUNTIES. SOME THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING...BRIEF HEAVY DOWNPOURS ...GUSTY WINDS AND SMALL HAIL. THE AIRMASS OVER WESTERN PENNSYLVANIA IS VERY WARM AND UNSTABLE AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE AFTERNOON. PARRISH/BELK
Special weather statement, Jun 18, 3:28 PM EDT, 1 hour 16 minutes before
PAZ002-003-182100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 320 PM EDT FRI JUN 18 1993 ...THUNDERSTORMS CONTINUE TO DEVELOP IN NORTHWEST PENNSYLVANIA... AT 315 THIS AFTERNOON WEATHER RADAR SHOWED SHOWERS AND THUNDERSTORMS ALONG THE ALLEGENY RIVER FROM JUST EAST OF WARREN SOUTHWESTWARD SOUTHERN VENANGO COUNTY. STRONGEST THUNDERSTORMS WERE OCCURRING FROM TIONESTA SOUTHWARD THROUGH EASTERN VENANGO COUNTY. PRECIPITATION WAS MOVING EASTWARD AROUND 20 MILES AN HOUR AND WILL BE AFFECTING EASTERN VENANGO...FOREST AND CLARION COUNTIES. SOME THUNDERSTORMS WILL PRODUCE DANGEROUS LIGHTNING...BRIEF HEAVY DOWNPOURS ...GUSTY WINDS AND SMALL HAIL. THE AIRMASS OVER WESTERN PENNSYLVANIA IS VERY WARM AND UNSTABLE AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE AFTERNOON. PARRISH/BELK
Special weather statement, Jun 18, 3:40 PM EDT, 1 hour 4 minutes before
OHZ004-182035- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AKRON CANTON OH 336 PM EDT FRI JUN 18 1993 THUNDERSTORMS WERE MOVING EAST ACROSS THE NORTH CENTRAL AND NORTHEAST THIS AFTERNOON. AT 324 PM EDT WEATHER SERVICE RADAR INDICATED THUNDERSTORMS OVER MEDINA AND SUMMIT COUNTIES. THESE STORMS WERE MOVING EAST AROUND 15 MPH. THESE STORMS WILL PRODUCE HEAVY RAINS AND GUSTY WINDS UPTO 40 MPH SINCE THE STORMS ARE MOVING RATHER SLOW PONDxING OF WATER ON ROADWAYS IS LIKELY ALLOW WITH FLOODING OF POOR DRAINAGE AREAS POSSIBLE. IK
Special weather statement, Jun 18, 4:11 PM EDT, 33 minutes before
PAZ002-003-182200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 411 PM EDT FRI JUN 18 1993 ...SEVERE THUNDERSTORM WATCH UNTIL 1000 PM FOR CRAWFORD...WARREN...VENANGO... ...AND FOREST COUNTIES IN NORTHWEST PENNSYLVANIA. ...STRONG THUNDERSTORMS EAST OF THE ALLEGENY RIVER... AT 405 PM RADAR SHOWED SCATTERED STRONG THUNDERSTORMS FROM NEAR BRADFORD IN MCKEAN COUNTY SOUTHWESTWARD THROUGH EASTERN FOREST COUNTY INTO CENTRAL CLARION COUNTY. STRONGEST STORMS WERE NEAR MARIENVILLE IN FOREST COUNTY AND NEAR CLARION IN CENTRAL CLARION COUNTY. THESE THUNDERSTORMS HAVE BEEN MOVING TOWARDS THE EAST SOUTHEAST AT 30 MILES AN HOUR. SOME THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY DOWNPOURS... DANGEROUS LIGHTNING AND HAIL. STAY TUNED FOR FURTHER STATEMENTS OR WARNINGS. PARRISH/PAONE/BELK
Special weather statement, Jun 18, 4:18 PM EDT, 26 minutes before
PAZ002-003-182200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 411 PM EDT FRI JUN 18 1993 ...SEVERE THUNDERSTORM WATCH UNTIL 1000 PM FOR CRAWFORD...WARREN...VENANGO... ...AND FOREST COUNTIES IN NORTHWEST PENNSYLVANIA. ...STRONG THUNDERSTORMS EAST OF THE ALLEGENY RIVER... AT 405 PM RADAR SHOWED SCATTERED STRONG THUNDERSTORMS FROM NEAR BRADFORD IN MCKEAN COUNTY SOUTHWESTWARD THROUGH EASTERN FOREST COUNTY INTO CENTRAL CLARION COUNTY. STRONGEST STORMS WERE NEAR MARIENVILLE IN FOREST COUNTY AND NEAR CLARION IN CENTRAL CLARION COUNTY. THESE THUNDERSTORMS HAVE BEEN MOVING TOWARDS THE EAST SOUTHEAST AT 30 MILES AN HOUR. SOME THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...\HEAVY DOWNPOURS... DANGEROUS LIGHTNING AND HAIL. STAY TUNED FOR FURTHER STATEMENTS OR WARNINGS. PARRISH/PAONE/BELK
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1993Every severe thunderstorm warning in 1993
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.