Alert archive / Ohio / Tornado Warnings in 1986

Tornado Warning 5, NWS Wilmington, OH

April 20, 1986Crawford County, Richland County, Ohio

NWS Wilmington, OH issued this tornado warning at Apr 20, 1986, 8:05 PM EST for Crawford County, Richland County, Ohio. It was in force for 55 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
Apr 20, 1986, 8:05 PM EST (01:05 UTC)
Expired
Apr 20, 1986, 9:00 PM EST
In force
55 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Crawford County, OH, Richland 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
Apr 20, 8:45 PM ESTThunderstorm Wind 52Richland, 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 00:00Z, 1.1 hours before the alert went out and 161 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 00:00Z on 1986-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1986-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMFD 210105
TORMFD
OHC033-139-210200-

BULLETIN
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OHIO
805 PM EST SUN APR 20 1986 

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE 
UNTIL 900 PM EST FOR THE FOLLOWING COUNTIES OF
   
OHIO...CRAWFORD..RICHLAND


VERY STRONG WINDS HAVE BEEN REPORTED IN CARDINGTON IN MARION COUNTY.
THE OHIO STATE PATROL HAS SPOTTED A TORNADO IN UNION COUNTY NEAR
MARYSVILLE. POLES WERE REPORTED DOWNED. THE TORNADO WAS MOVING
NORTHEAST.

IF YOU ARE TRAPPED OUT DOORS AWAY FROM SAFE SHELTER GO TO A
DITCH OR LOW AREA. GET AS LOW AS POSSIBLE AND PROTECT YOUR HEAD,
CHEST AND EXPOSED SKIN. BE CAREFUL OF FLOODING IN DRAINAGE DITCHES 
AND STORM CULVERTS.

RCJM

Nearby

Tornado Warnings in Ohio, 1986Every tornado warning in 1986Tornadoes 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.