Alert archive / Ohio / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 99, NWS Charleston, WV

July 20, 1992Marion County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Jul 20, 1992, 1:47 PM EDT for Marion County, Ohio. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Jul 20, 1992, 1:47 PM EDT (17:47 UTC)
Expired
Jul 20, 1992, 2:45 PM EDT
In force
58 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Marion County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 5.8 hours before the alert went out and 117 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 1992-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1250 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 1992-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
1250 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
879 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-16 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCMH 201748
SVRCMH
OHC101-201845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBUS OH
147 PM EDT MON JUL 20 1992
 
THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  245 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY......
 
IN CENTRAL OHIO
 
   ...MARION COUNTY
 
AT 146 PM NATIONAL WEATHER SERVICE RADAR INDICATED A POSSIBLE SEVERE
THUNDERSTORM OVER NORTHERN MARION COUNTY. THE THUNDERSTORM WAS MOVING
EAST AT 30 MILES AN HOUR AND WILL MOVE THROUGH THE NORTHERN PORTION OF
THE COUNTY BY 230 PM.
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY &HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
SMITH

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 3:35 PM EDTSevere Thunderstorm WarningRLXDelaware55 min
Jul 20, 3:39 PM EDTSevere Thunderstorm WarningRLXMadison51 min
Jul 20, 3:48 PM EDTSevere Thunderstorm WarningRLXLicking42 min
Jul 20, 4:07 PM EDTSevere Thunderstorm WarningRLXFranklin68 min
Jul 20, 5:07 PM EDTFlash Flood WarningRLXLicking2 hr
Jul 20, 5:28 PM EDTFlash Flood WarningRLXDelaware2 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 1992Every severe thunderstorm warning in 1992

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.