Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 70, NWS Cleveland, OH

June 29, 1987Crawford County, Erie County, Pennsylvania

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

TimeReportWhereRemark
Jun 29, 10:30 PM EDTThunderstorm Wind 0Crawford, PA
Jun 29, 10:35 PM EDTThunderstorm Wind 0Erie, PA
Jun 29, 10:50 PM EDTThunderstorm Wind 0Crawford, PA
Jun 29, 11:10 PM EDTThunderstorm Wind 0Crawford, 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 1987-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 933 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 00:00Z on 1987-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 203 square meters per square second.1939587897Sfc1 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
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

Open this sounding in Storm Lab

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.

THOMPSON
Special 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.