Alert archive / Ohio / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 94, NWS Cleveland, OH

July 12, 1986Erie County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 12, 1986, 8:10 PM EDT for Erie County, Ohio. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jul 12, 1986, 8:10 PM EDT (00:10 UTC)
Expired
Jul 12, 1986, 9:10 PM EDT
In force
60 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Erie County, OH

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

Detroit, MI (KFNT), launched 00:00Z, 0.2 hours before the alert went out and 155 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 00:00Z on 1986-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 608 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, Detroit, MI at 00:00Z on 1986-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 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
608 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCLE 130010
SVRCLE
OHC043-130110-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
810 PM EDT SAT JUL 12 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 910 PM EDT FOR THE FOLLOWING COUNTY OF
 
NORTH CENTRAL OHIO... ERIE
 
...INCLUDING ADJACENT COASTAL WATERS.
 
AT 8 PM RADAR INDICATED POSSIBLE SEVERE THUNDERSTORM ALONG THE
LAKESHORE JUST WEST OF SAND USKY MOVING EAST AT 30 MPH.
 
THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL...HEAVY RAINS...
DAMAGING WINDS AND DANGEROUS LIGHTNING.
 
RJM

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, Jul 12, 4:57 PM EDT, 3 hours 13 minutes before
SPECIAL WEATHER STATEMENT AND AFTERNOON OHIO WEATHER STORY
NATIONAL WEATHER SERVICE CLEVELAND OH
458 PM EDT SUN JUL 13 1986

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL AND ALL
OF SOUTHERN OHIO UNTIL 10 PM EDT THIS AFTERNOON AND EVENING. THE WATCH
INCLUDES THE AREA IN OHIO NEAR AND SOUTH OF A DAYTON, COLUMBUS, AND
WHEELING WEST VIRGINIA LINE.

DURING THE LATE AFTERNOON, WEATHER SERVICE RADAR WAS SHOWING
DEVELOPING THUNDERSTORMS SCATTERED ACROSS THE STATE. MOST OF THE STORMS
WERE LOCATED IN THE SOUTHWESTERN AND NORTH CENTRAL COUNTIES. NO SEVERE
THUNDERSTORM WERE REPORTED. THE THUNDERSTORMS WILL INCREASE IN NUMBER
AND INTENSITRY THROUGH THE REST OF THE AFTERNOON AND EVENING WITH SOME
STORMS LIKELY BECOMING SEVERE.

CONSIDERABLE SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE IN THE
BUCKEYE STATE THROUGH SUNDAY BEFORE MORE STABLE CONDITIONS MOVE INTO
THE AREA SUNDAY NIGHT AND MONDAY. A BROAD FLOW OF WARM AND HUMID AIR
OVER OHIO WAS ASSOCIATED WITH A LARGE AREA OF LOW PRESSURE ACROSS THE
MID SECTION OF THE COUNTRY. THIS UNSTABLE WARM AND HUMID AIR WILL BE
MAINLY RESPONSIBLE IN TRIGGERING THE SHOWERS AND THUNDERSTORMS. THE LOW
PRESSURE TO THE WEST WILL PASS THROUGH THE GREAT LAKE REGION AND THE
OHIO VALLEY AREA LATE SUNDAY AND SUNDAY NIGHT ALLOWING DRIER AIR FROM
THE WEST TO OVERSPREAD THE STATE.

LATE AFTERNOON TEMPERATURES WERE MOSTLY IN THE UPPER 70 TO LOWER 80
DEGREE RANGE. CLOUDINESS AND PRECIPITATION WAS HOLDING TEMPERATURES DOWN
IN MANY AREAS. ALTHOUGH TEMPERATURES WERE NOT EXTREMELY HIGH, THE
HUMIDITY LEVELS WERE QUITE HIGH MAKING AFTERNOON CONDITIONS VERY
UNCOMFORTABLE.

THE LATEST WEATHER MAP SHOWED A LARGE AREA OF LOW PRESSURE OVER THE MID
SECTION OF THE NATION. A CENTER OF LOW PRESSURE WAS FOUND OVER EASTERN
NORTH DAKOTA WITH A WARM FRONT MEANDERING EAST ACROSS THE LOWER GREAT
LAKES REGION TO THE SOUTHERN NEW ENGLAND COAST. A WARM AND HUMID AREA
OF HIGH PRESSURE OVER THE GULF OF MEXICO EXTENDED NORTH TO THE OHIO
VALLEY AND THE MID MISSISSIPPI VALLEY AREAS.

CHUDOWSKY
Special weather statement, Jul 12, 5:11 PM EDT, 2 hours 59 minutes before
SPECIAL WEATHER STATEMENT AND AFTERNOON OHIO WEATHER STORY CORRECTED
NATIONAL WEATHER SERVICE CLEVELAND OH
512 PM EDT SAT JUL 12 1986

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF CENTRAL AND ALL
OF SOUTHERN OHIO UNTIL 10 PM EDT THIS AFTERNOON AND EVENING. THE WATCH
INCLUDES THE AREA IN OHIO NEAR AND SOUTH OF A DAYTON, COLUMBUS, AND
WHEELING WEST VIRGINIA LINE.

DURING THE LATE AFTERNOON, WEATHER SERVICE RADAR WAS SHOWING
DEVELOPING THUNDERSTORMS SCATTERED ACROSS THE STATE. MOST OF THE STORMS
WERE LOCATED IN THE SOUTHWESTERN AND NORTH CENTRAL COUNTIES. NO SEVERE
THUNDERSTORM WERE REPORTED. THE THUNDERSTORMS WILL INCREASE IN NUMBER
AND INTENSITRY THROUGH THE REST OF THE AFTERNOON AND EVENING WITH SOME
STORMS LIKELY BECOMING SEVERE.

CONSIDERABLE SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE IN THE
BUCKEYE STATE THROUGH SUNDAY BEFORE MORE STABLE CONDITIONS MOVE INTO
THE AREA SUNDAY NIGHT AND MONDAY. A BROAD FLOW OF WARM AND HUMID AIR
OVER OHIO WAS ASSOCIATED WITH A LARGE AREA OF LOW PRESSURE ACROSS THE
MID SECTION OF THE COUNTRY. THIS UNSTABLE WARM AND HUMID AIR WILL BE
MAINLY RESPONSIBLE IN TRIGGERING THE SHOWERS AND THUNDERSTORMS. THE LOW
PRESSURE TO THE WEST WILL PASS THROUGH THE GREAT LAKE REGION AND THE
OHIO VALLEY AREA LATE SUNDAY AND SUNDAY NIGHT ALLOWING DRIER AIR FROM
THE WEST TO OVERSPREAD THE STATE.

LATE AFTERNOON TEMPERATURES WERE MOSTLY IN THE UPPER 70 TO LOWER 80
DEGREE RANGE. CLOUDINESS AND PRECIPITATION WAS HOLDING TEMPERATURES DOWN
IN MANY AREAS. ALTHOUGH TEMPERATURES WERE NOT EXTREMELY HIGH, THE
HUMIDITY LEVELS WERE QUITE HIGH MAKING AFTERNOON CONDITIONS VERY
UNCOMFORTABLE.

THE LATEST WEATHER MAP SHOWED A LARGE AREA OF LOW PRESSURE OVER THE MID
SECTION OF THE NATION. A CENTER OF LOW PRESSURE WAS FOUND OVER EASTERN
NORTH DAKOTA WITH A WARM FRONT MEANDERING EAST ACROSS THE LOWER GREAT
LAKES REGION TO THE SOUTHERN NEW ENGLAND COAST. A WARM AND HUMID AREA
OF HIGH PRESSURE OVER THE GULF OF MEXICO EXTENDED NORTH TO THE OHIO
VALLEY AND THE MID MISSISSIPPI VALLEY AREAS.

CHUDOWSKY
CORRECTED TO CHANCE DATE..
Special weather statement, Jul 12, 6:05 PM EDT, 2 hours 5 minutes before
^CLESPSTOL

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOLEDO OH
603 PM EDT SAT JUL 12 1986

HEAVY THUNDERSTORMS WERE DEVELOPING OVER NORTHWEST OHIO.

AT 6 PM NATIONAL WEATHER SERVICE RADAR INDICATED VERY HEAVY
THUNDERSTORMS OVER DEFIANCE AND PAULDING COUNTIES OF NORTHWEST
OHIO.

THESE THUNDERSTORMS WERE MOVING EAST AT 35 MPH AND WILL MOVE
INTO HENRY COUNTY BY 615 PM.

THESE THUNDERSTORMS WILL LIKELY PRODUCE HEAVY RAIN.. GUS,TY WINDS..
DANGEROUS LIGHTNING.. AND POSSIBLY SMALL HAIL.
RAR

                                                                             [
Special weather statement, Jul 12, 6:45 PM EDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
650 PM EDT SAT JUL 12 1986

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR CENTRAL AND
SOUTHERN OHIO UNTIL 10 PM EDT.

AT 640 PM NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF
THUNDERSTORMS FROM NEAR ZANESVILLE TO PORTSMOUTH MOVING EAST ABOUT 35
MPH.  OTHER THUNDERSTOMRMS WERE IN NORTHWEST OHIO, INDIANA, SOUTHEAST
LOWER MICHIGAN ONTARIO.  AN OFF DUTY POLICE_ OFFICER REPORTED 60 TO 70

MPH WIND GUSTS AND PEA SIZED HAIL IN FAIRFIELD COUNTY SOUTHWEST OF
LANCASTER.  HEAVY RAINS WERE REPORTED IN HOCKING AND PERRY COUNTIES
BETWEEN 6 AND 630 PM.

THOMPSON
Special weather statement, Jul 12, 7:39 PM EDT, 31 minutes before
^CLESPSCAK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AKRON CANTON OH
738 PM EDT SAT JUL 12 1986

AT 710 PM EDT SENECAVILLE, OH CORPS OF ENGINEERS REPORTED VERY HEAVY
RAIN.. LOTS OF LIGHTNING AND WIND GUSTS ESTIMATED AT 50 MPH. AT 730 PM
EDT WEATHER RADAR SHOWED THIS SAME STORM OVER QUAKER CITY, OH MOVING
TOWARD THE NORTHEAST AT 35 MPH. PERSONS IN THE PATH OF THIS STORM SHOULD
BE ON THE ALERT FOR HEAVY RAIN..STRONG GUSTY WINDS AND DANGExROUS
LIGHTNING FOR THE NEXT HOUR. QUAKER CITY REPORTED AT 735 PM EDT VERY
HEAVY RAIN AND FREQUENT CLOUD TO GROUND LIGHTNING AND A BRIEF GUST OF
WIND.

MARTIN {
Special weather statement, Jul 12, 7:45 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
553 PM EDT SAT JUL 12 1986

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR CENTRAL AND
SOUTHERN OHIO UNTIL 10 PM EDT.

AT 550 PM NATIONAL WEATHER SERVICE RADAR SHOWED AN AREA OF
THUNDERSTORMS FROM NEAR COLUMBUS TO THE OHIO RIVER JUST WEST OF
PORTSMOUTH.  THESE STORMS WERE MOVING EAST ABOUT 35 MPH.  WIND GUSTS TO
50 MPH WERE REPORTED FROM CINCINNATI AS THESE T!HUNDERSTORMS MOVED
THROUGH.

OTHER THUNDERSTORMS WERE SCATTERED ACROSS NORTHERN KENTUCKY AS WELL AS
NORTHERN OHIO LAND SOUTHERN LOWER MICHIGAN.

THOMPSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 8:04 PM EDTTornado WarningCLEPaulding56 min
Jul 12, 8:16 PM EDTTornado WarningCLEPutnam44 min
Jul 12, 8:31 PM EDTTornado WarningCLEDefiance59 min
Jul 12, 8:44 PM EDTTornado WarningCLEHancock56 min
Jul 12, 9:34 PM EDTTornado WarningCLEPutnam56 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1986Every severe thunderstorm warning in 1986

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.