Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 72, NWS Wilmington, OH

May 19, 1997Ross County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 19, 1997, 5:20 PM EDT for Ross County, Ohio. It was in force for 40 min. 1 report 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 19, 1997, 5:20 PM EDT (21:20 UTC)
Expired
May 19, 1997, 6:00 PM EDT
In force
40 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Ross County, OH

What was reported inside it

TimeReportWhereRemark
May 19, 5:25 PM EDTThunderstorm Wind 50Londonderry, OHNumerous trees downed.

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, 9.3 hours before the alert went out and 65 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 1997-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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, Cncnati-Daytn, OH at 12:00Z on 1997-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
29 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
216 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.

692 
WUUS01 KILN 192121 RRA
SVRILN
OHC001-131-141-192200-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
520 PM EDT MON MAY 19 1997

THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH CENTRAL OHIO

   ...ADAMS COUNTY
   ...PIKE COUNTY

IN CENTRAL OHIO

   ...ROSS COUNTY
 
AT 519 PM EDT DOPPLER RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS
MOVING INTO NORTHERN SECTIONS OF ADAMS COUNTY AND WESTERN SECTIONS
OF PIKE AND ROSS COUNTIES. THIS LINE OF THUNDERSTORMS WAS MOVING
TOWARD THE EAST AT 40 MPH AND WILL MOVE THROUGH PEEBLES...PIKETON
AND CHILLICOTHE BY 6 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.

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 19, 2:53 PM EDT, 2 hours 27 minutes earlier.

Area forecast discussion, May 19, 2:53 PM EDT, 2 hours 27 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
250 PM EDT MON MAY 19 1997

AT 17Z...THE CLD FRNT XTENDED ACRS ECNTRL MI SE TO SRN IL.  SH AND TSTM
WERE DEVELPING ACROSS ENTIRE CWA. SAT PICT SHOWS EXPLOSIVE DEV IN TN
AND SRN KY WITH THE CU FIELD QUICKLY FILLING IN ACROSS SRN IN...NRN KY
AND OH. XPECT THE SH AND TSTMS TO CONTINUE DEVELPING THIS AFT AS THE
FRONT PUSHES E.

THE PROBLEMS OF THE DAY ARE WHEN TO TIME OUT THE PRECIP THIS EVE AS
WELL AS HOW COLD WILL TEMPS BE TONIGHT. MODELS ARE STILL IN FAIRLY GOOD
AGREEMENT ESP WITH THE EWRD PROGRESSION OF THE FRNT.  XPECT THE FRNT TO
BE E OF DAY AND CVG BY 00Z.  THUS WILL SEE LINGERING SH AND TSTS IN THE
W TO COME TO AN END THIS EVE.  IN THE EAST...XPCT THE ACTIVITY END BY
MID.

FOR TON...DRYER AIR WL WORK IN FROM THE GREAT LKS SO SHOULD SEE PARTIAL
CLEARING IN THE NW DURING THE OVERNIGHT HRS...AND DURING THE EARLY
MORNING HRS ACRS CVG...CMH...DAY. WITH STRNG CAA MOVING IN
OVERNIGHT...TEMPS WILL PLUMMET.  850 TEMPS BY 12Z TUE WILL RANGE BTWN 2
AND 7 ACRS THE AREA.

AS FOR TUE...ANTICYCLONIC CURVATURE ALONG WITH NRLY FLOW AND CAA WILL
BE THE DOM FEATURES.  XPCT SOME CU TO DEV ESP ACROS THE N WHERE MOIST
LEVELS WILL BE HIGHER. HOWEVER...SKIES SHOULD PRODIMANTLY BE PS WHILE
SOME AREAS ESP IN KY MAY SEE MS FOR MUCH OF THE DAY.

THE HIGH WILL CONT TO BUILD IN FROM W TUE NIGHT WHICH WL AID IN A
CLEARING TREND TOWARD SUNSET.

ANOTHER SHORTWAVE WILL DROP INTO THE AREA WED. THUS XPECT TO SEE SOME
CLOUDS DEV DURING THE DAY...MAINLY IN THE NORTH THOUGH. TEMPS WILL BE
COLD AS 850 TEMPS REMAIN BELOW 0 ACROSS THE ENTIRE AREA.

AS FOR TEMPS...TNK FAN NUMBERS ARlE A LITTLE ON THE COOL SIDE FOR TUE
AND WED. SO TENDED TO LEAN MORE TOWARD MOS VALUES.

CVG 49/65/42/63/44 5/0/0
DAY 47/63/42/61/43 5/0/0
CMH 48/62/40/60/41 7/0/0

INNES

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 11:28 PM EDTSevere Thunderstorm WarningILNPaulding32 min
May 18, 11:41 PM EDTSevere Thunderstorm WarningILNPutnam, Van Wert49 min
May 19, 12:08 AM EDTSevere Thunderstorm WarningILNAllen37 min
May 19, 4:48 PM EDTSevere Thunderstorm WarningILNClermont32 min
May 19, 4:58 PM EDTSevere Thunderstorm WarningILNBrown32 min
May 19, 5:15 PM EDTSevere Thunderstorm WarningILNHighland30 min
May 19, 5:20 PM EDTSevere Thunderstorm WarningILNAdams, Pike40 min
May 19, 5:50 PM EDTSevere Thunderstorm WarningILNScioto60 min
May 19, 6:00 PM EDTSevere Thunderstorm WarningILNPike, Ross30 min
May 19, 6:33 PM EDTFlash Flood WarningILNAdams2 hr
May 19, 6:49 PM EDTFlash Flood WarningILNAdams116 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.