Alert archive / Ohio / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 64, NWS Charleston, WV

September 30, 1986Fairfield County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Sep 30, 1986, 6:46 PM EDT for Fairfield County, Ohio. It was in force for 44 min.

The area

The counties it named.

The facts

Issued
Sep 30, 1986, 6:46 PM EDT (22:46 UTC)
Expired
Sep 30, 1986, 7:30 PM EDT
In force
44 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Fairfield 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

Dayton/James M C, OH (KDAY), launched 12:00Z, 10.8 hours before the alert went out and 135 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, Dayton/James M C, OH at 12:00Z on 1986-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 245 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, Dayton/James M C, OH at 12:00Z on 1986-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 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
245 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
902 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.2
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCMH 302246
SVRCMH
OHC045-302330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBUS OH
646 PM EDT TUE SEP 30 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 730 PM EDT FOR THE FOLLOWING COUNTY OF
 
CENTRAL OHIO... FAIRFIELD
                                                                         
AT 640 PM EDT FAIRFIELD COUNTY SHERRIFF'S OFFICE REPORTED TREES DOWN 
ON THE SOUTHWEST SIDE OF LANCASTER.  COLUMBUS WEATHER RADAR SHOWED 
A STRONG THUNDERSTORM SOUTHWEST OF LANCASTER MOVING NORTHEAST AT 
35 MPH. 
 
THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL...HEAVY RAINS...
DAMAGING WINDS AND DANGEROUS LIGHTNING.
 
FENBERS

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, Sep 30, 5:45 PM EDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTINGTON WV
545 PM EDT TUE SEP 30 1986

...SEVERE THUNDERSTORM WATCH UNTIL 1000 PM IN SOUTHERN OHIO...

SEVERE THUNDERSTORM WATCH NUMBER 539 REMAINS IN EFFECT FOR PARTS OF
SOUTHERN OHIO. TRI STATE AREA COUNTIES INCLUDED IN THE WATCH ARE:
ADAMS...PIKE...SCIOTO...JACKSON...MEIGS.

AT 545 PM WEATHER RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS
FROM COLUMBUS OHIO TO NEAR LEXINGTON KENTUCKY. THAT LINE WAS MOVING
EAST AT ABOUT 20 MPH. AT THE CURRENT RATE OF PROGRESS SOME OF THE
STORMS IN THE LINE SHOULD BE ENTERING ADAMS AND PIKE COUNTIES OF OHIO
BETWEEN 700 AND 800 PM.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE
FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN
THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER
CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

END/JMH
Special weather statement, Sep 30, 6:36 PM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE, ELKINS WV
631 PM EDT TUE SEP 30 1986

...A VERY LARGE STRONG THUNDERSTORM IS MOVING INTO EASTERN TYLER
COUNTY WEST VIRGINIA...

A VERY LARGE STRONG THUNDERSTORM OVER TYLER CO IS MOVING EAST
AT NEARLY 45 MILES AN HOUR AND WILL MOVE ACROSS NORTHERN HARRISON
..MARION..MONONGALIA AND NORTHERN PRESTON COUNTIES IN THE NEXT
HOUR AND A HALF. THIS THUNDERSTORM WILL BE ACCOMPANIED BY DAMAGING
WINDS..FREQUENT DANGEROUS LIGHTING AND HAIL.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS OR
POSSIBLE WARNINGS.

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.