Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 56, NWS Cleveland, OH

June 29, 1987Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 29, 1987, 4:07 PM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 53 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1987, 4:07 PM EDT (20:07 UTC)
Expired
Jun 29, 1987, 5:00 PM EDT
In force
53 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.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.1 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 12:00Z on 1987-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 12:00Z on 1987-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 246 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
6 J/kg
Mixed-layer CIN
-191 J/kg
Mixed-layer LCL
1469 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
246 m²/s²
0-3 km storm-relative helicity
264 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 KERI 292007 RRA
SVRERI
PAC049-039-292100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ERIE PA
407 PM EDT MON JUN 29 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 500 PM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

NORTHWEST PENNSYLVANIA...ERIE...CRAWFORD AND AND ADJACENT LAKE ERIE 
 WATERS

AT 4 PM ERIE WEATHER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS FROM OVER LAKE ERIE...SOUTH TO GENEVA OHIO...
AND FURTHUR SOUTH TO WEST OF YOUNGTOWN OHIO.  THE LINE WAS
MOVING TO THE EAST AROUND 50 MILES AN HOUR.  THESE STORMS
HAVE PRODUCED WINDS TO AROUND 60 TO 70 MILES AN HOUR.

THESE STORMS WILL CAUSE SOME FLOODING OF SMALL STREAMS AND
LOW LYING AREAS.

SMALL BOATERS ON LAKE ERIE AND PRESQUE 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, 12:18 PM EDT, 3 hours 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
1215 PM EDT MON JUN 29 1987

SHOWERS AND THUNDERSTORMS WERE ENTERING NORTHWEST OHIO EARLY
THIS AFTERNOON.

AT 1210 PM WEATHER SERVICE RADAR INDICATED SHOWERS AND THUNDERSTORMS
EXTENDING FROM NEAR GRAND RAPIDS MICHIGAN SOUTHEASTWARD ACROSS
WILLIAMS...DEFIANCE AND PAULDING COUNTIES OF NORTHWEST OHIO. THESE
SHOWERS AND THUNDERSTORMS WERE MOVING EAST AROUND 30 MPH.

PEOPLE THROUGHOUT ALL OF NORTHWEST OHIO SHOULD BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS THE NEXT FEW HOURS.

THESE SHOWERS AND THUNDERSTORMS MAY CONTAIN BRIEF HEAVY RAINS...STRONG
GUSTY WINDS AND POSSIBLE SMALL HAIL.

KSL

C
Special weather statement, Jun 29, 1:37 PM EDT, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MANSFIELD OH
140 PM EDT MON JUN 29 1987

AT 135 PM EDT WEATHER RADAR SHOWED VERY HEAVY THUNDERSTORMS OVER
SENCA AND WYANDOT COUNTIES OF NORTH CENTRAL OHIO. THE THUNDERSTORMS
WERE MOVING EAST AT 40 MPH.

THE THUNDERSTORMS WILL MOVE INTO CRAWFORD COUNTY BY 145 PM EDT. THE
HEAVY THUNDERSTORMS WILL CONTINUE EAST ACROSS NORTH CENTRAL DURING
THE NEXT SEVERAL HOURS.

THE THUNDERSTORMS ARE CAPABLE OF PRODUCING BRIEF HEAVY RAIN..STRONG
GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING AS THEY MOVE OVERHEAD.

BANYAS
Special weather statement, Jun 29, 1:38 PM EDT, 2 hours 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
140 PM EDT MON JUN 29 1987

AT 120 PM EDT WEATHER RADAR SHOWED A STRONG THUNDERSTORM OVER FOSTORIA
OHIO MOVING EAST AROUND 50 MPH.

THIS STORM WAS PART OF A LINE OF THUNDERSTORMS FROM TOLEDO THROUGH
FOSTORIA TO NEAR UPPER SANDUSKY. THIS LINE OF STORMS HAS THE POTENTIAL
TO PRODUCE DAMAGING WINDS DUE TO ITS RAPID MOVEMENT.

THE STORMS ALSO HAVE BEEN REPORTED TO PRODUCE VERY HEAVY DOWNPOURS AND
SMALL HAIL.

THE CENTER OF THE STRONGEST STORM WILL BE MOVING JUST NORTH OF TIFFIN
AND ENTERING THE BELLEVUE AND WILLARD AREAS JUST BEFORE 2 PM EDT. THE
STORMS WILL BE TO SANDUSKY BEFORE 230 PM EDT.

AGAIN THIS LINE OF STORMS HAS THE POTENTIAL TO PRODUCE DAMAGING WINDS
AND HAIL.

WHEN THREATENING WEATHER APPROACHES TAKE SHELTER INDOORS.

MAXIMUK
Special weather statement, Jun 29, 3:01 PM EDT, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MANSFIELD OH
305 PM EDT MON JUN 29 1987

THE SEVERE THUNDERSTORM WARNING FOR RICHLAND COUNTY WAS CANCELLED AT
305PM EDT. THE SEVERE THUNDERSTORM WARNING FOR ASHLAND COUNTY
CONTINUES IN EFFECT UNTIL 330 PM EDT.

AT 305PM EDT WEATHER RADAR SHOWED SOME LINGERING SHOWERS IN RICHLAND
COUNTY AND SOME POSSIBLE SEVERE THUNDERSTORMS OVER ASHLAND COUNTY.
THE THUNDERSTORMS WERE MOVING EAST AT 55 MPH.
4
AT 342PM SOME PEA SIZE HAIL FELL AT MANSFIELD-LAHM AIRPORT ALONG WITH
SOME VERY HEAVY RAIN.

BANYAS
Special weather statement, Jun 29, 3:41 PM EDT, 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
340 PM EDT MON JUN 29 1987

VERY STRONG THUNDERSTORMS WERE MOVING TOWARD THE YOUNGSTOWN-WARREN AREA
THIS AFTERNOON.

AT 340 PM RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS FROM NEAR
GENEVA-ON-THE-LAKE TO AURORA IN PORTAGE COUNTY TO MASSILON IN STARK
COUNTY.  THE STRONGEST THUNDERSTORMS WERE NEAR AURORA AND JUST WEST
OF MASSILON.  THESE THUNDERSTORMS ARE MOVING EAST AT 55 MPH AND WILL
MOVE INTO TRUMBULL, MAHONING, AND COLUMBIANA COUNTIES BY 4 PM.  THESE
THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN, HAIL, STRONG WINDS,
AND FREQUENT LIGHTNING.

PEOPLE IN NORTHEAST OHIO SHOULD KEEP AN EYE TO THE SKY AND TAKE SHELTER
WHEN THE WEATHER LOOKS THREATENING.

MCMULLEN

                                                                             [

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 4:40 PM EDTSevere Thunderstorm WarningCLECrawford, Erie80 min

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; the sounding from the Mesonet's radiosonde archive.