Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 49, NWS Wilmington, OH

May 14, 1997Clinton County, Greene County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 14, 1997, 5:27 PM EDT for Clinton County, Greene County, Ohio. It was in force for 48 min. 2 reports 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
May 14, 1997, 5:27 PM EDT (21:27 UTC)
Expired
May 14, 1997, 6:15 PM EDT
In force
48 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Clinton County, OH, Greene County, OH

What was reported inside it

TimeReportWhereRemark
May 14, 5:50 PM EDTHail 1.25Sabina, OH
May 14, 6:05 PM EDTTornado F1Sabina, OHA mini supercell spawned a tornado along a warm frontal boundary. Roofs were blown off a grain bin, hog harrowing house, and several farm buildings.

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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.5 hours before the alert went out and 14 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, Cncnati-Daytn, OH at 12:00Z on 1997-05-14Temperature 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, Cncnati-Daytn, OH at 12:00Z on 1997-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 square meters per square second.1939587897117136Sfc1 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
1547 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
172 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.

772 
WUUS01 KILN 142129 RRA
SVRILN
OHC027-057-142215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
527 PM EDT WED MAY 14 1997

THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWESTERN OHIO

   ...CLINTON COUNTY

IN WEST CENTRAL OHIO

   ...GREENE COUNTY
 
AT 524 PM EDT...A SEVERE THUNDERSTORM WAS INDICATED BY WILMINGTON
DOPPLER RADAR AND SPOTTER REPORTS 9 MILES SOUTHWEST OF XENIA MOVING
EAST AT 25 MPH.  THE SPOTTER OBSERVED 1 INCH DIAMETER HAIL 2 MILES
SOUTH OF SPRING VALLEY.  THE MAIN THREAT WITH THIS STORM IS LARGE
HAIL.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
        XENIA                   BY 544 PM EDT
 
IT IS DANGEROUS TO BE OUTDOORS WHILE A SEVERE THUNDERSTORM IS IN
PROGRESS. DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE. SEEK SHELTER IN A BUILDING OR
A VEHICLE. IF YOU ARE CAUGHT IN THE OPEN...STAY AWAY FROM TOWERS
AND LARGE TREES. CROUCH NEAR THE GROUND AND COVER YOUR HEAD.

SANDLER
&

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.

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at May 14, 2:38 PM EDT, 2 hours 49 minutes earlier.

Area forecast discussion, May 14, 2:38 PM EDT, 2 hours 49 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
237 PM EDT WED MAY 14 1997

CDFNT WAS MOVG INTO WRN IN AT 18Z WITH LITTLE DEVELOPMENT OCCURRING.
ADAP SHOWED SOME CONVERGENCE ALONG THE FNT IN WRN IN.  HOWEVER...LOW
LEVELS REMAIN DRY.  AS H5 VORT MOVES TOWARD FA...MODELS FCST LIFT AND
INSTABILITY ESP ACROSS WRN FA BY 00Z. SFC DEWPOINTS ARE HIGHER ACROSS
SRN FA THAN FURTHER W SO SOME PRECIP DEVELOPMENT SHOULD OCCUR. PREFER
CHC POPS S OF CMH-DAY AND LIKELY POPS VC LIMA...ALL MAINLY IN THE
EVENING. AS THE FNT PASSES THIS EVENING...SOME BRIEF CLEARING POSSIBLE
AS DIURNAL CU SHOULD DISSIPATE.  HOWEVER...CLOUDS SHOULD FILL BACK IN
FROM WRAPAROUND MOISTURE.

SFC LOW PROGD TO DEEPEN OVR NEW ENGLAND STATES ON WED WHICH WL PULL
MUCH COOLER AIR SWD.  WRAPAROUND MOISTURE WL GIVE CHC -SHRA TO NRN 2/3
OF FA AND MOSTLY CLOUDY SRN 1/3 OF FA.  SKIES EXPECTED TO CLEAR ON WED
NIGHT. WL HAVE TO WATCH FOR FROST BUT XPCT WINDS TO STAY >UP ATTM.  P/C
ON THU.

CVG 43/54/38/58 420
DAY 41/51/37/57 430
CMH 43/51/38/56 430

WILKINSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 5:56 PM EDTSevere Thunderstorm WarningILNFayette64 min
May 14, 6:01 PM EDTTornado WarningILNClinton, Fayette49 min
May 14, 6:37 PM EDTTornado WarningILNPickaway, Ross48 min
May 14, 6:38 PM EDTSevere Thunderstorm WarningILNFranklin52 min
May 14, 7:09 PM EDTTornado WarningILNHocking61 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997Every severe thunderstorm warning in 1997

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.