Alert archive / Ohio / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 28, NWS Wilmington, OH

April 15, 1994Clermont County, Ohio; Bracken County, Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 15, 1994, 12:10 PM EDT for Clermont County, Ohio; Bracken County, Kentucky. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Apr 15, 1994, 12:10 PM EDT (16:10 UTC)
Expired
Apr 15, 1994, 1:15 PM EDT
In force
65 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Bracken County, KY, Clermont County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 4.2 hours before the alert went out and 115 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 1994-04-15Temperature 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 12:00Z on 1994-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 square meters per square second.19395878Sfc1 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
1754 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 15, 10:07 AM EDT, 2 hours 3 minutes before
OHZ036-045-046-054-055-056-057-063-064-065-066-067-073-074-075-
084-151515-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBUS OH
1006 AM EDT FRI APR 15 1994

A TORNADO WATCH IS IN EFFECT UNTIL 4 PM FOR
FAYETTE...MADISON...MARION... AND UNION COUNTIES OF CENTRAL OHIO.

AT 1000 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SHOWERS
AND STRONG THUNDERSTORMS EXTENDING FROM MADISON AND WESTERN PICKAWAY
COUNTIES DOWN ACROSS CENTRAL ROSS COUNTY.  THIS LINE OF SHOWERS AND
STORMS WAS MOVING NORTHEAST AT 40 MILES AN HOUR...AND WILL EXTEND FROM
COLUMBUS TO CIRCLEVILLE TO EASTERN ROSS COUNTY BY 1030 AM.

THE THUNDERSTORMS WILL PRODUCE BRIEF VERY HEAVY RAIN...FREQUENT
LIGHTNING...AND POSSIBLY SMALL HAIL WITH WIND GUSTS TO 40 MILES AN HOUR.

GROH
Special weather statement, Apr 15, 10:27 AM EDT, 1 hour 43 minutes before
INZ066-073-074-075-080-OHZ070-071-072-077-078-079-080-KYZ089-090-
091-092-093-094-095-096-097-099-151630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CINCINNATI OH
1034 AM EDT (934 AM EST) FRI APR 15 1994

A TORNADO WATCH REMAINS IN EFFECT FOR THE ENTIRE CINCINNATI TRISTATE
UNTIL 400 PM EDT (300 PM EST).

A TORNADO WATCH MEANS ATMOSPHERIC CONDITIONS ARE RIGHT FOR THE POSSIBLE
DEVELOPMENT OF SEVERE THUNDERSTORMS AND TORNADOES.  NUMEROUS REPORTS OF
TORNADO TOUCHDOWNS AND FUNNEL CLOUDS HAVE COME FROM PARTS OF CENTRAL AND
SOUTHERN INDIANA THIS MORNING.

AT 1015 AM EDT WEATHER SERVICE RADAR SHOWED AN INTENSE LINE OF
THUNDERSTORMS EXTENDING FROM MUNCIE INDIANA...75 MILES NORTHWEST OF
CINCINNATI...TO LOUISVILLE KENTUCKY. THIS LINE OF THUNDERSTORMS WAS
MOVING TO THE NORTHEAST AT 40 MILES AN HOUR. THE LEADING EDGE OF
THUNDERSTORMS WAS 15 MILES WEST OF WESTERN RIPLEY COUNTY INDIANA.

THIS IS AN EXTREMELY DANGEROUS SITUATION. IF A. TORNADO IS SIGHTED OR A
WARNING IS ISSUED...TAKE COVER IMMEDIATELY.

JOHNSTONE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 11:12 AM EDTSevere Thunderstorm WarningILNKnox, Richland63 min
Apr 15, 11:31 AM EDTSevere Thunderstorm WarningILNPreble59 min
Apr 15, 11:38 AM EDTSevere Thunderstorm WarningILNButler, Hamilton52 min
Apr 15, 11:52 AM EDTSevere Thunderstorm WarningILNWarren68 min
Apr 15, 11:59 AM EDTTornado WarningILNHamilton31 min
Apr 15, 12:12 PM EDTTornado WarningILNWarren33 min
Apr 15, 12:18 PM EDTSevere Thunderstorm WarningILNBrown57 min
Apr 15, 12:22 PM EDTTornado WarningILNBrown, Clermont38 min
Apr 15, 12:33 PM EDTSevere Thunderstorm WarningILNClinton42 min
Apr 15, 12:46 PM EDTSevere Thunderstorm WarningILNHighland59 min
Apr 15, 1:30 PM EDTSevere Thunderstorm WarningILNCrawford60 min
Apr 15, 1:56 PM EDTSevere Thunderstorm WarningILNKnox34 min
Apr 15, 11:04 AM EDTSevere Thunderstorm WarningILNCarroll, Gallatin56 min
Apr 15, 11:17 AM EDTTornado WarningILNCarroll, Gallatin28 min
Apr 15, 11:21 AM EDTSevere Thunderstorm WarningILNOwen69 min
Apr 15, 11:31 AM EDTSevere Thunderstorm WarningILNBoone44 min
Apr 15, 11:38 AM EDTSevere Thunderstorm WarningILNGrant52 min
Apr 15, 11:43 AM EDTSevere Thunderstorm WarningILNCampbell, Kenton, Pendleton62 min
Apr 15, 10:45 AM EDTSevere Thunderstorm WarningILNRipley75 min
Apr 15, 11:04 AM EDTSevere Thunderstorm WarningILNDearborn, Ohio56 min
Apr 15, 11:07 AM EDTTornado WarningILNSwitzerland38 min
Apr 15, 11:24 AM EDTTornado WarningILNDearborn, Franklin51 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1994Severe Thunderstorm Warnings in Kentucky, 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.