Alert archive / Ohio / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 21, NWS Wilmington, OH

May 7, 1986Greene County, Montgomery County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 7, 1986, 4:56 PM EDT for Greene County, Montgomery County, Ohio. It was in force for 64 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 7, 1986, 4:56 PM EDT (20:56 UTC)
Expired
May 7, 1986, 6:00 PM EDT
In force
64 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Greene County, OH, Montgomery 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 7, 5:50 PM EDTHail 1Greene, 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

Dayton/James M C, OH (KDAY), launched 12:00Z, 8.9 hours before the alert went out and 22 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 1986-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 803 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 1986-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
803 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
896 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
100 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 KDAY 072056
SVRDAY
OHC113-057-072200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DAYTON OH
456 PM EDT WED MAY 7 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 600 PM EDT FOR THE FOLLOWING COUNTIES OF
 
OHIO.. MONTGOMERY.. GREENE
 
AT 455 RADAR HEAVY THUNDERSTORMS IN DARKE AND GREENE COUNTIES
OHIO.  THE STORMS WERE MOVING SOUTHEAST AT 25 MPH AND HAVE
AOHIO.  THE STORMS WERE MOVING SOUTHEAST AT 25 MPH AND WILL           3
MOVE INTO NORTHERN MONTGOMERY COUNTY JUST AFTER 500 PM EDT.
LARGE HAIL WAS REPORTED IN DARKE COUNTY OHIO.
 
THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL.. HEAVY RAINS..
DAMAGING WINDS AND DANGEROUS LIGHTNING.
 
GCL

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 8:13 PM EDTSevere Thunderstorm WarningILNHardin57 min
May 6, 8:19 PM EDTSevere Thunderstorm WarningILNDarke, Miami56 min
May 6, 8:31 PM EDTSevere Thunderstorm WarningILNLogan59 min
May 6, 8:39 PM EDTSevere Thunderstorm WarningILNShelby61 min
May 6, 8:55 PM EDTSevere Thunderstorm WarningILNChampaign65 min
May 6, 9:15 PM EDTSevere Thunderstorm WarningILNCrawford, Morrow60 min
May 6, 11:48 PM EDTSevere Thunderstorm WarningILNDarke, Preble62 min
May 7, 12:37 AM EDTSevere Thunderstorm WarningILNWarren43 min
May 7, 12:45 AM EDTSevere Thunderstorm WarningILNClinton35 min
May 7, 1:19 AM EDTSevere Thunderstorm WarningILNHighland31 min
May 7, 4:40 PM EDTSevere Thunderstorm WarningILNDarke60 min
May 7, 4:59 PM EDTSevere Thunderstorm WarningILNClermont31 min
May 7, 5:17 PM EDTSevere Thunderstorm WarningILNBrown33 min
May 7, 5:48 PM EDTSevere Thunderstorm WarningILNClermont42 min
May 7, 6:40 PM EDTSevere Thunderstorm WarningILNButler50 min
May 7, 6:54 PM EDTSevere Thunderstorm WarningILNClermont26 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.