Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 70, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jun 29, 1987, 10:18 PM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 57 min. 4 reports 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
- Jun 29, 1987, 10:18 PM EDT (02:18 UTC)
- Expired
- Jun 29, 1987, 11:15 PM EDT
- In force
- 57 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Crawford County, PA, Erie County, PA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 29, 10:30 PM EDT | Thunderstorm Wind 0 | Crawford, PA | |
| Jun 29, 10:35 PM EDT | Thunderstorm Wind 0 | Erie, PA | |
| Jun 29, 10:50 PM EDT | Thunderstorm Wind 0 | Crawford, PA | |
| Jun 29, 11:10 PM EDT | Thunderstorm Wind 0 | Crawford, 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 00:00Z, 2.3 hours before the alert went out and 162 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
- 933 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 969 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 236 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KERI 300218 SVRERI PAC049-039-300315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ERIE PA 1018 PM EDT MON JUN 29 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTHWEST PENNSYLVANIA...ERIE...CRAWFORD AND AND ADJACENT LAKE ERIE WATERS AT 1012 PM EDT RADAR SHOWED SEVERE THUNDERSTORMS ALONG THE LAKE ERIE SHORELINE IN ERIE COUNTY...EXTENDING SOUTHWARD INTO NORTHWEST CRAWFORD COUNTY. THESE STORMS ARE MOVING EAST AT 30 MILES AN HOUR. THESE STORMS WILL CAUSE SOME FLOODING OF SMALL STREAMS AND LOW LYING AREAS. SMALL BOATERS ON LAKE ERIE AND PRbESQUE ISLE BAY SHOULD SEEK SAFE HARBOR. THESE STORMS ARE ACCOMPANIED BY DANGEROUS LIGHTNING..STRONG GUSTY WINDS AND HAIL.
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 29, 8:01 PM EDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 800 PM EDT MON JUN 29 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM EDT. AT 800 PM EDT WEATHER RADAR SHOWED A NEARLY SOLID LINE OF OF THUNDERSTORMS..SOME SEVERE..FROM TOLEDO..TO FINDLAY..TO LIMA. THE THUNDERSTORMS WERE MOVING EAST AT 45 MPH. THE LINE OF THUNDERSTORMS WILL ENTER CRAFORD AND MORROW COUNTIES BY 830 PM EDT..AND THEN SWEEP ACROSS RICHLAND..KNOX AND ASHLAND COUNTIES BETWEEN 830-10 PM EDT. THESE THUNDERSTORMS ARE DANGEROUS AND THEY HAVE ALREADY CAUSED HIGH WINDS AND ONE (1) HAIL IN NORTHWEST OHIO. BANYAS
Special weather statement, Jun 29, 8:37 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AKRON CANTON OH
835 PM EDT MON JUN 29 1987
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM
FOR MUCH OF EAST CENTRAL OHIO...AN AREA FROM ZANESVILLE
TO BELLAIRE.
THE TORNADO WARNING FOR BELMONT COUNTY EXPIRED AT 830 PM.
AT 830 THIS EVENING AKRON CANTON WEATHER RADAR INDICATED
THE VERY STRONG THUNDERSTORM THAT WAS IN EASTERN BELMONT
COUNTY HAD MOVED INTO THE NORTHERN PANHANDLE OF WEST VIRGINIA.
AT 810 PM DEBRIS WAS REPORTED FALLING OUT OF CLOUDS OVER
BELLAIRE ALONG WITH THREE QUARTER INCH HAIL. MARBLE SIZE
HAIL WAS REPORTED JUST SOUTH OF ST. CLAIRSVILLE...ALL IN
BELMONT COUNTY. THE BELMONT COUNTY SHERIFFS OFFICE REP7ORTS STATE
ROUTE 147 BLOCKED BY DOWNED TREES AND SEVERAL POWER OUTAGES
HAVE BEEN REPORTED IN THE COUNTY. {
RADAR INDICATED ANOTHER BATCH OF HEAVY THUNDERSTORMS MOVING
INTO CENTRAL OHIO.
THOMPSONSpecial weather statement, Jun 29, 8:54 PM EDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OHIO 855 PM EDT MON JUN 29 1987 A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR MOST OF THE NORTHWEST THIRD OF OHIO UNTIL 10PM AS WELL AS PORTION OF EAST CENTRAL OHIO NEAR ZANESVILLE. 1 INCH HAIL AND 68 MPH WINDS WERE REPORTED FROM THE CITY OF LORAIN AT 840 PM. UPPER SANDUSKY REPORTED 60 MPH WINDS AT 835 PM. OTHER THUNDERSTORMS HAVE PRODUCED HAIL AND DAMAGING WIND OVER PARTS OF NORTHWEST OHIO. NUMEROUS POWER OUTAGES ARE REPORTED DUE TO LIGHTNING STRIKES AS WELL AS WIND BLOWING TREE LIMBS DOWN ON POWERLINES. AT 850 PM... A LINE OF THUNDERSTORMS EXTENDED FROM NEAR CLEVELAND TO MANSFIELD AND DAYTON. OTHER STRONGT STORMS WERE LOCATED OVER MUCH OF CENTRAL LAKE ERIE AND ALSO IN EXTREME SOUTHEAST LOWER MICHIGAN. THE STORMS WERE MOVING EAST. IF THREATENING WEATHER APPROACHES... SEEK SAFE SHELTER IMMEDIATELY. THIS IS A DANGEROUS SITUATION. DRAG
Special weather statement, Jun 29, 9:37 PM EDT, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 933 PM EDT MON JUN 29 1987 ...STRONG THUNDERSTORMS HEADING INTO NORTHWEST PENNSYLVANIA... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 2AM TUESDAY... AT 930 PM EDT RADAR SHOWED NUMEROUS SHOWERS AND STRONG THUNDERSTORMS MOVING OUT OF NORTHEAST OHIO INTO WESTERN ERIE AND CRAWFORD COUNTIES AND THE ADJACENT LAKE ERIE WATERS. THESE STORMS ARE MOVING EAST AT AROUND 40 MILES AN HOUBR. SOME OF THESE STORMS WILL PRODUCE STRONG GUSTY WINDS...HEAVY DOWNPOURS ...HAIL AND DANGEROUS LIGHTNING. SMALL BOATERS ON LAKE ERIE AND PRESQUE ISLE BAY SHOULD BE ALERT FOR THREATENING WEATHER.
Special weather statement, Jun 29, 9:52 PM EDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OHIO 951 PM EDT MON JUN 29 1987 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2AM EDT FOR ALL OF OHIO EXCEPT THE EXTREME NORTHWEST AND SOUTHEAST CORNERS OF THE STATE. THERE HAVE BEEN NUMEROUS REPORTS OF DAMAGING WIND... HAIL TO NEAR ONE INCH DIAMETER... LIGHTNING STRIKES CAUSING POWER OUTAGES AND BRIEF TORRENTIAL DOWNPOURS. 60 MPH WINDS WERE NOTED AT MANSFIELD... LORAIN AND FAIRPORT HARBOR SINCE ABOUT 830 PM. AT 950 PM... THUNDERSTORMS COVERED THE LAKESHORE COUNTIES OF NORTHEAST AND NORTH CENTRAL OHIO AND THEN ALL OF THE NORTHWEST THIRD OF THE STATE EXCEPT THE REGION FROM NEAR MARBLEHEAD WESTWARD TO THE INDIANA/MICHIGAN LINE. STORMS WERE MOVING GENERALLY EAST AT 30 TO 40 MPH. IF THREATENING WEATHER APPROACHES... SEEK SAFE SHELTER IMMEDIATELY. THIS IS A DANGEROUS SITUATION. DRAG
Special weather statement, Jun 29, 10:14 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 1014 PM EDT MON JUN 29 1987 VERY STRONG THUNDERSTORMS WERE MOVING INTO NORTHERN TRUMBULL COUNTY THIS EVENING. AT 1010 PM RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS FROM NEAR SOUTHINGTON TO MESOPOTAMIA IN TRUMBULL COUNTY MOVING EAST AT 45 MPH. THESE THUNDERSTORMS WILL LIKELY PRODUCE TORRENTIAL DOWNPOURS, HAIL, AND GUSTY WINDS. THIS LINE OF THUNDERSTORMS WILL MOVE INTO MERCER COUNTY IN WESTERN PENNSYLVANIA BY 1045 PM. A SEVERE THUNDERSTORM WATCH REMAINS EFFECT FOR TRUMBULL, MAHONING, AND COLUMBIANA COUNTIES IN NORTHEAST OHIO AND MERCER AND LAWRENCE COUNTIES IN WESTERN PENNSYLVANIA UNTIL 2 AM TUESDAY MORNING. IF THE WEATHER LOOKS THREATENING, SEEK SHELTER IMMEDIATELY. MCMULLEN
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1987Every severe thunderstorm warning in 1987
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.