Alert archive / Ohio / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 18, NWS Cleveland, OH

May 30, 1987Lorain County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at May 30, 1987, 4:20 PM EDT for Lorain County, Ohio. It was in force for 70 min. 1 report 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
May 30, 1987, 4:20 PM EDT (20:20 UTC)
Expired
May 30, 1987, 5:30 PM EDT
In force
70 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Lorain County, OH

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
May 30, 4:45 PM EDTThunderstorm Wind 52Lorain, OH

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

Detroit, MI (KFNT), launched 12:00Z, 8.3 hours before the alert went out and 176 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, Detroit, MI at 12:00Z on 1987-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1153 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 1987-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.193958Sfc1 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
1153 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1197 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
15 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 KCLE 302020
SVRCLE
OHC093-302130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
420 PM EDT SAT MAY 30 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 530 PM EDT FOR THE FOLLOWING COUNTY OF
 
NORTH CENTRAL OHIO... LORAIN
 
...INCLUDING THE ADJACENT WATERS OF LAKE ERIE.
 
AT 418 PM RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM OVER LORAIN
COUNTY. PUBLIC REPORTS HAIL UP TO THREE QUARTER INCH DIAMETER. THIS
STORM WAS MOVING NORTHEAST AT 15 MPH.
 
THIS THUNDERSTORM MAY PRODUCE LARGE HAIL...HEAVY RAIN...DAMAGING WINDS
AND DANGEROUS LIGHTNING.  SEEK SHELTER FROM THIS STORM.
 
MM

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, May 30, 11:44 AM EDT, 4 hours 36 minutes before
UPDATED SEVERE WEATHER OUTLOOK FOR OHIO
NATIONAL WEATHER SERVICE CLEVELAND OH
1145 AM EDT SAT MAY 30 1987

THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY SAYS THAT
THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS DEVELOPING IN OHIO
THIS AFTERNOON AND EVENING.

MONTGOMERY
Special weather statement, May 30, 12:14 PM EDT, 4 hours 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
1215 PM EDT SAT MAY 30 1987

HEAVY THUNDERSTORMS ARE HEADED INTO COLUMBIANA COUNTY.

NATIONAL WEATHER SERVICE RADAR INDICATES A HEAVY THUNDERSTORM
ALONG THE WESTERN BORDER OF COLOMBIANA COUNTY IN OHIO LOCATED
FROM MINERVA TO ALLIANCE. THE STORM IS MOVING EAST AT ABOUT 15 MPH
AND WILL MOVE THROUGH COLUMBIANA COUNTY BETWEEN 1230 PM AND 200 PM.

RADAR ALSO SHOWS NEW THUNDERSTORMS DEVELOPING OVER MAHONING COUNTY.

MOTORISTS AND RESIDENTS SHOULD PREPARE FOR HEAVY DOWNPOURS WITH THESE
STORMS THAT WILL REDUCE VISIBILITY TO NEAR ZERO AND CAUSE SOME
TEMPORARY STREET FLOODING. FREQUENT DANGEROUS LIGHTNING... SMALL HAIL
BRIEF GUSTY 4WINDS ARE ALSO LIKELY. PEOPLE OUTDOORS SHOULD BE READY TO
TAKE COVER WHEN THESE STORMS APPROACH.
KOSARIK

                                                                             [
Special weather statement, May 30, 1:26 PM EDT, 2 hours 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
120 PM EDT SAT MAY 30 1987

VERY HEAVY THUNDERSTORMS WERE DEVELOPING OVER LAKESHORE COUNTIES.

AT 120 THIS AFTERNOON WEATHER RADAR SHOWED THUNDERSTORMS WITH VERY
HEAVY RAINS IN EASTERN LAKE... NORTHEAST GEAUGA COUNTIES. THEY WERE
MOVING NORTHEAST INTO ASHTABULA COUNTY. A THUNDERSTORM WITH HEAVY RAIN
WAS ALONG ROUTE 224 BETWEEN GREENWHICH AND LODI IN NORTHERN ASHLAND
COUNTY.

A THUNDERSTORM WITH VERY HEAVY RAIN WAS SOUTH OF LAKESHORE AREA IT
WAS NORTHWEST OF MANSFIELD NEAR THE CITY OF SHELBY IN NORTHWEST
RICHLAND COUNTY.

THE STORMS WERE MOVING NORTHEAST AROUND 15 MILES AN HOUR. THEY WILL
CONTINUE TO DEVELOP OVER THE LAKESHORE AREA THROUGH THE AFTERNOON.
THEY CAN PRODUCE VERY HEAVY RAINS... HAIL.. AND GUSTY WINDS.
THOMPSON
Special weather statement, May 30, 3:45 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
345 PM EDT SAT MAY 20 1987

SEVERE THUNDERSTORM WATCHES REMAIN IN EFFECT FOR ALL OF OHIO EXCEPT THE
NORTHWEST COUNTIES UNTIL 8 PM EDT.

AT 320 PM EDT WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM
THE NORTHEAST CORNER OF OHIO TO CLEVELAND... AND THEN TO COLUMBUS. A
RELATIVELY LARGE AREA OF THUNDERSTORMS COVERED MOST OF THE STATE SOUTH
AND WEST OF COLUMBUS.  MOST OF THE THUNDERSTORMS WERE MOVING NORTHEAST
AT ABOUT 20 MPH.

THE THUNDERSTORMS THAT DEVELOPED IN OHIO THIS AFTERNOON ARE CAPABLE OF
PRODUCING BOTH LARGE HAIL AND DAMAGING WINDS. HAILSTONES 3/4 INCH IN
DIAMETER FELL ON ASHTABULA COUNTY BETWEEN 215 PM AND 230 PM. THE
WEATHER SERVICE RECEIVED AN UNCOMFIRMED REPORT OF WIND DAMAGE FROM THE
GEAUGA COUNTY COMMMUNITY OF THOMPSON AT 305 PM.

BESIDES HAIL AND HIGH WINDS... OHIOANS COULD ALSO EXPERIENCE HEAVY
DOWNPOORS FROM THE THUNDERSTORMS MOVING ACROSS THE STAjTE. RESIDENTS OF
THE BUCKEYE STATE SHOULD REMAIN ALERT FOR THREATENING WEATHER AND
LISTEN FOR LATEST STATEMENTS FROM THE WEATHER SERVICE.

KWIATKOWSKI

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 11:00 AM EDTSevere Thunderstorm WarningCLEStark60 min
May 30, 1:20 PM EDTSevere Thunderstorm WarningCLEMahoning40 min
May 30, 2:14 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga61 min
May 30, 2:18 PM EDTSevere Thunderstorm WarningCLECuyahoga57 min
May 30, 2:31 PM EDTSevere Thunderstorm WarningCLELorain74 min
May 30, 4:34 PM EDTSevere Thunderstorm WarningCLECuyahoga76 min
May 30, 4:38 PM EDTSevere Thunderstorm WarningCLEColumbiana52 min
May 30, 4:58 PM EDTSevere Thunderstorm WarningCLEHolmes, Stark62 min
May 30, 5:12 PM EDTSevere Thunderstorm WarningCLEWayne58 min
May 30, 5:16 PM EDTSevere Thunderstorm WarningCLEHancock64 min
May 30, 5:55 PM EDTSevere Thunderstorm WarningCLEGuernsey65 min
May 30, 6:09 PM EDTSevere Thunderstorm WarningCLEErie71 min
May 30, 6:47 PM EDTSevere Thunderstorm WarningCLEMedina63 min
May 30, 7:10 PM EDTSevere Thunderstorm WarningCLECuyahoga60 min

Nearby

Severe Thunderstorm Warnings in Ohio, 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.