Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 261, NWS Charleston, WV

August 12, 1994Pickaway County, Ross County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Aug 12, 1994, 4:32 PM EDT for Pickaway County, Ross County, Ohio. It was in force for 36 min.

The area

The counties it named.

The facts

Issued
Aug 12, 1994, 4:32 PM EDT (20:32 UTC)
Expired
Aug 12, 1994, 5:08 PM EDT
In force
36 min
Issued by
NWS Charleston, WV
Area
Whole counties

Counties Pickaway County, OH, Ross County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 8.5 hours before the alert went out and 109 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 1994-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1825 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 1994-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939Sfc1 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
1825 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
12 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 KCMH 122033 RRA
SVRCMH
OHC129-141-122115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBUS OH
432 PM EDT FRI AUG 12 1994
 
THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  515 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...S...
 
IN CENTRAL OHIO
 
   ...PICKAWAY COUNTY
 
IN SOUTH CENTRAL OHIO
 
   ...ROSS COUNTY
 
AT 427 PM EDT NATIONAL WEATHER SERVICE RADAR IN COLUMBUS AND THE DOPPLER
RADAR IN WILMINGTON WERE BOTH INDICATING A POSSIBLE SEVERE THUNDERSTORM
IN NORTHERN ROSS COUNTY. MOVEMENT OF THIS STORM WAS TO THE
EAST/NORTHEAST AT 20 MILES AN HOUR AND WILL MOVE INTO SOUTHEASTERN
PICKAWAY COUNTY DURING THE NEXT 20 MINUTES.
 
SOME COMMUNITIES IN THE PATH OF THIS STORM ARE KINNIKINNICK...KINGSTON
...AND CIRCLEVILLE.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
ANJD DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
ONDREJIK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 4:46 PM EDTSevere Thunderstorm WarningRLXVinton59 min
Aug 12, 6:37 PM EDTSevere Thunderstorm WarningRLXAthens, Morgan53 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1994Every severe thunderstorm warning in 1994

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.