Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 5, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Apr 27, 1987, 7:00 PM EDT for Lawrence County, Pennsylvania. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Apr 27, 1987, 7:00 PM EDT (23:00 UTC)
- Expired
- Apr 27, 1987, 8:00 PM EDT
- In force
- 60 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, 11.0 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
- 2356 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 86 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 272300 SVRYNG PAC073-280000- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE YOUNGSTOWN OH 700 PM EDT MON APR 27 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF EXTREME WEST PENNSYLVANIA...LAWRENCE AT 645 PM WEATHER SERVICE RADAR SHOWED POSSIBLE SEVERE THUNDERSTORMS OVER EASTERN MAHONING AND TRUMBULL COUNTIES. THE STORMS WERE MOVING EAST SOUTHEAST AT 40 MPH. THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL.. HEAVY RAIN.. DAMAGING WINDS AND FREQUENT LIGHTNING. KOSARIK
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, Apr 27, 5:03 PM EDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 500 PM EDT MON APR 27 1987 A LINE OF STRONG THUNDERSTORMS WILL MOVE THROUGH NORTHEASTERN OHIO AND INTO WESTERN PENNSYLVANIA BETWEEN FIVE AND SIX PM. AT 450 PM WEATHER SERVICE RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM 30 MILES NORTHEAST OF CLEVELAND TO AKRON TO MANSFIELD. OTHER STRONG STORMS WERE DEVELOPING ABOUT 10 MILES EAST OF WARREN OVER EASTERN PORTAGE COUNTY. THE LINE OF THUNDERSTORMS WAS MOVING EAST SOUTHEAST AT 40 MPH. THESE STORMS WILL CONTAIN BRIEF HEAVY RAINS...SMALL HAIL AND WINDS GUSTING TO 40 TO 50 MPH. WINDS OF THIS STRENGTH WILL CAUSE WHOLE TREES TO SWAY AND TWIGS TO BREAK OFF AND FALL. TAYLOR
Special weather statement, Apr 27, 5:17 PM EDT, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 509 PM EDT MON APR 27 1987 ...COLD FRONT AND THUNDERSTORMS HEADING INTO NORTHWEST PENNSYLVANIA... AT 500 PM RADAR SHOWED A LINE OF THUNDERSTORMS FROM NEAR KITCHNER ONTARIO SOUTHWARD ACROSS LAKE ERIE TO ALONG THE PENNSYLVANIA OHIO BORDER. THESE THUNDERSTORMS ARE MOVING EASTWARD AT 35 MILES AN HOUR AND WILL BEGIN AFFECTING ERIE AND CRAWFORD COUNTIES IN NORTHWEST PENNSYLVANIA AND ADJACENT LAKE ERIE WATERS AROUND 530 PM. THESE STORMS WILL CONTAIN BRIEF HEAVY DOWNPOURS...SMALL HAIL...DANGEROUS LIGHTNING AND WIND GUSTS ABOVE 40 MILES AN HOUR. PARRISH
Special weather statement, Apr 27, 6:41 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AKRON CANTON OH
640 PM EDT MON APR 27 1987
SEVERE THUNDERSTORMS MOVED THROUGH EASTERN OHIO THIS EVENING.
AT 630 PM.. REPORTED DAMAGE WAS LIMITED TO TREES BEING BLOWN DOWN
RESULTING IN SPOTTY POWER OUTAGES IN WAYNE AND STARK COUNTIES.
AT 635 PM, SEVERE THUNDERSTORMS WERE MOVING THROUGH COLUMBIA COUNTY
AT 45 MPH.
AT 635 PM, RADAR SHOWED OTHER HEAVY THUNDERSTORMS IN EAST CENTRAL OHIO..
IN HARRIStON, JEFFERSON, BELMONT, GUERNSEY AND MUSKINGUM COUNTIES. THOSE
STORMS WERE ALSO MOVING EAST AT 40 TO 45 MPH, AND COULD ALSO CAUSE SOME
TREE DAMAGE. MOST OF THE HEAVY THUNDERSTORMS WILL BE OUT OF OHIO BY
8 PM.
NIBERT {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.