Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 9, NWS Charleston, WV

April 12, 1994Ross County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Apr 12, 1994, 10:25 PM EDT for Ross County, Ohio. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Apr 12, 1994, 10:25 PM EDT (02:25 UTC)
Expired
Apr 12, 1994, 11:15 PM EDT
In force
50 min
Issued by
NWS Charleston, WV
Area
Whole counties

County Ross County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 2.4 hours before the alert went out and 116 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 1994-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 532 joules per kilogram.LCLEL10008507005003002001001 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 1994-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 square meters per square second.1939587897Sfc1 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
532 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
964 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
303 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCMH 130227
SVRCMH
OHC141-130315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBUS OH
1025 PM EDT TUE APR 12 1994
 
THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY......
 
IN SOUTH CENTRAL OHIO
 
   ...ROSS COUNTY
 
AT 1025 PM EDT THE NATIONAL WEATHER SERVICE RADAR IN COLUMBUS INDICATED
A POSSIBLE SEVERE THUNDERSTORM MOVING INTO SOUTHERN ROSS COUNTY. THIS
STORM WAS JUST SOUTH OF BAINBRIDGE...ABOUT 15 MILES SOUTHWEST OF
CHILLICOTHE. THIS STORM PRODUCED THREE QUARTER INCH HAIL AS IT MOVED
THROUGH ADAMS COUNTY.
 
MOVEMENT WAS TOWARDS THE NORTHEAST AT 35 MILES AN HOUR.
 
SOME OF THE COMMUNITIES THAT WILL BE AFFECTED BY THIS STORM ARE
BAINBRIDGE...BOURNEVILLE...BROWNSVILLE...AND CHILLICOTHE.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND V<ERY 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.
 
AVERY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 10:24 PM EDTSevere Thunderstorm WarningRLXHocking, Perry36 min
Apr 12, 10:35 PM EDTSevere Thunderstorm WarningRLXMuskingum55 min
Apr 12, 10:55 PM EDTSevere Thunderstorm WarningRLXAthens, Morgan65 min
Apr 12, 11:15 PM EDTSevere Thunderstorm WarningRLXMarion, Union60 min
Apr 12, 11:25 PM EDTSevere Thunderstorm WarningRLXMadison50 min
Apr 12, 11:49 PM EDTSevere Thunderstorm WarningRLXDelaware, Franklin41 min
Apr 13, 12:01 AM EDTSevere Thunderstorm WarningRLXFayette44 min
Apr 13, 12:31 AM EDTSevere Thunderstorm WarningRLXFranklin, Pickaway59 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.