Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 51, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jun 30, 1990, 7:42 PM EDT for Lawrence County, Pennsylvania. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 7:42 PM EDT (23:42 UTC)
- Expired
- Jun 30, 1990, 8:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Lawrence County, PA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 11.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KYNG 302344
SVRYNG
PAC073-010030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
742 PM EDT SAT JUN 30 1990
THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTHEAST PENNSYLVANIA
...LAWRENCE
AT 740PM WEATHER RADAR INDICTATED A SEVERE THUNDERSTORM IN MERCER
COUNTY ABOUT TO MOVE INTO LAWRENCE COUNTY. MOVEMENT WAS SOUTHEAST AT
40 MPH.
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.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 30, 6:32 PM EDT, 1 hour 10 minutes before
PAZ001-002-302330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 630 PM EDT SAT JUN 30 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL NORTHWEST PENNSYLVANIA... ...UNTIL 10 PM EDT... ...STRONG THUNDERSTORMS IN NORTHWEST PENNSYLVANIA... AT 630 PM WEATHER RADAR SHOWED A STRONG THUNDERSTORM ALONG THE OHIO... PENNSYLVANIA BORDER WEST OF ALBION. THIS STORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR AND WILL BE EFFECTING THE SOUTHWEST CORNER OF ERIE COUNTY BEFORE MOVING INTO CRAWFORD COUNTY AROUND 700 PM. OTHER THUNDERSTORMS WERE ALONG THE ALLEGHENY RIVER NORTH OF TIONESTA. THESE THUNDERSTORMS WILL CAUSE HEAVY DOWNPOURS...STRONG GUSTY WINDS... DANGEROUS LIGHTNING AND HAIL. PARRISH/WELLS
Special weather statement, Jun 30, 6:38 PM EDT, 1 hour 4 minutes before
OHZ006-011-302330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 638 PM EDT SAT JUN 30 1990 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL... AT 635 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A SMALL AREA OF THUNDERSTORMS OVER NORTHEAST MORROW COUNTY. THEY WERE MOVING SOUTHEAST AT 30 MPH. THIS AREA OF THUNDERSTORMS IS CAPABLE OF PRODUCING HEAVY DOWNPOURS.. POSSIBLY SOME HAIL AND STRONG GUSTY S4URFACE WINDS. THE THUNDERSTORMS WILL MOVE INTO NORTHERN KNOX COUNTY BY 645PM EDT. IF THREATENING WEATHER APPROACHES BE PREPARED TO SEEK SHELTER. BANYAS
Special weather statement, Jun 30, 6:39 PM EDT, 1 hour 3 minutes before
OHZ006-011-302330- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE MANSFIELD OH 638 PM EDT SAT JUN 30 1990 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM EDT... AT 635 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A SMALL AREA OF THUNDERSTORMS OVER NORTHEAST MORROW COUNTY. THEY WERE MOVING SOUTHEAST AT 30 MPH. THIS AREA OF THUNDERSTORMS IS CAPABLE OF PRODUCING HEAVY DOWNPOURS.. POSSIBLY SOME HAIL AND STRONG GU5STY SURFACE WINDS. THE THUNDERSTORMS WILL MOVE INTO NORTHERN KNOX COUNTY BY 645PM EDT. IF THREATENING WEATHER APPROACHES BE PREPARED TO SEEK SHELTER. BANYAS
Special weather statement, Jun 30, 7:00 PM EDT, 42 minutes before
PAZ001-002-003-010000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 755 PM EDT SAT JUN 30 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL NORTHWEST PENNSYLVANIA... ...UNTIL 10 PM EDT... ...STRONG THUNDERSTORMS IN NORTHWEST PENNSYLVANIA... AT 750 PM WEATHER RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS IN NORTHWEST PENNSYLVANIA...THIS LINE WAS 20 MILES WIDE AND EXTENDED FROM THE LINESVILLE AREA IN CRAWFORD COUNTY EASTWARD TO TIONESTA ALONG THE ALLEGENY RIVER THEN CONTINUED EASTWARD TO RIDGWAY IN ELK COUNTY. OTHER THUNDERSTORMS WERE OVER CENTRAL LAKE ERIE NORTH OF THE PENNSYLVANIA LAKESHORE. THESE STORMS WERE MOVING TOWARDS THE SOUTHEAST AT 30 MILES AN HOUR. THESE THUNDERSTORMS WILL CAUSE HEAVY DOWNPOURS...STRONG GUSTY WINDS... DANGEROUS LIGHTNING AND HAIL. SMALL BOATERS ON LAKE ERIE AND PRESQUE ISLE BAY SHOULD BE PREPARED TO MOVE TO SAFE HARBOR IF THREATENING WEATHER APPROACHES. PARRISH/WELLS
Special weather statement, Jun 30, 7:03 PM EDT, 39 minutes before
PAZ001-002-003-010000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 655 PM EDT SAT JUN 30 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL NORTHWEST PENNSYLVANIA... ...UNTIL 10 PM EDT... ...STRONG THUNDERSTORMS IN NORTHWEST PENNSYLVANIA... AT 650 PM WEATHER RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS IN NORTHWEST PENNSYLVANIA...THIS LINE WAS 20 MILES WIDE AND EXTENDED FROM THE LINESVILLE AREA IN CRAWFORD COUNTY EASTWARD TO TIONESTA ALONG THE ALLEGENY RIVER THEN CONTINUED EASTWARD TO RIDGWAY IN ELK COUNTY. OTHER THUNDERSTORMS WERE OVER CENTRAL LAKE ERIE NORTH OF THE PENNSYLVANIA LAKESHORE. THESE STORMS WERE MOVING TOWARDS THE SOUTHEAST AT 30 MILES AN HOUR. THESE THUNDERSTORMS WILL CAUSE HEAVY DOWNPOURS...STRONG GUSTY WINDS... DANGEROUS LIGHTNING AND HAIL. SMALL BOATERS ON LAKE ERIE AND PRESQUE ISLE BAY SHOULD BE PREPARED TO MOVE TO SAFE HARBOR IF THREATENING WEATHER APPROACHES. PARRISH/WELLS
Special weather statement, Jun 30, 7:34 PM EDT, 8 minutes before
OHZ006-011-010030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 730 PM EDT SAT JUN 30 1990 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM EDT... AT 730 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A LARGE AREA OF THUNDERSTORMS COVERING MOST OF KNOX COUNTY. THE THUNDERSTORMS WERE CENTERED OVER MT. VERNON AND WERE MOVING SOUTHEAST AT 30 MPH. THE THUNDERSTORMS SHOULD EXIT KNOX COUNTY BY 830 PM EDT. TH|E KNOX COUNTY SHERIFF DEPARTMENT REPORTED VERY HEAVY DOWNPOURS WITH THESE THUNDERSTORMS. THE THUNDERSTORMS THIS EVENING HAVE A HISTORY PRODUCING LARGE HAIL. IF THREATENING WEATHER APPROACHES BE PREPARED TO SEEK SHELTER. BANYAS
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 7:27 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 63 min |
| Jun 30, 7:30 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 60 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1990Every severe thunderstorm warning in 1990
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.