Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 162, NWS Wilmington, OH

July 28, 1997Clinton County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 28, 1997, 8:00 AM EDT for Clinton County, Ohio. It was in force for 30 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: Jul 28, 1997, 8:00 AM EDT (12:00 UTC)
Expired: Jul 28, 1997, 8:30 AM EDT
In force: 30 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Clinton County, OH

The radar

The Cincinnati radar (KILN), 1 km from the middle of the area, began a volume at 12:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 8:25 AM EDT	Thunderstorm Wind 52	Martinsville, OH	An observer reported a gust to 60 mph.

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, 0.0 hours before the alert went out and 2 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 985 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1187 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 65 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.

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 27, 2:50 PM EDT, 17 hours 10 minutes earlier.

Area forecast discussion, Jul 27, 2:50 PM EDT, 17 hours 10 minutes before

FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
250 PM EDT SUN JUL 27 1997

LTST SFC ANLYS SHWG CDFNT FM SE NB THRU CNTL IA INTO NRN WI DEWPT
BNDRY ACRS ERN OH AND OUTFLOW BDNRY PUSHG SE ACRS NRN IN. DWPTS ACRS
IND AND WRN OH IN THE MID TO UPR 70S WITH TMPS IN LOW TO MID 90S. MOD
SNDG FOR LOW 90 TMPS/UPR 70 DWPTS YIELDS CAPE OF 5500 AND LI OF -10.
TSTMS OVR NW IND HAV BEEN INCRSG IN INTENSITY AND XPCT TREND TO CONT
AS THEY PUSH ESE INTO VERY UNSTBL AMS THRU LATE AFTN/EVNG. NEW MDLS
CONT TO SHOW NICE THTE AXIS INTO SW OH. THUS WUD XPCT TSTMS TO TRACK
INTO W CNTRL OH THRU LATE AFTN...THEN MOVG INTO DAY AND CMH AREAS TWD
22-23Z. SPD/DIRECTIONAL SHEAR NOT AS IMPRSV AS YSTRDY. HI CAPES THO
SHUD ALLOW FOR STG ENUF UPDRAFTS FOR SOME HAIL ALG WITH STG WNDS.

CDFNT WL FINALLY START TO PUSH S OVRNGT WITH MDLS BRINGING IT TO JUST
NW OF FA BY MON MRNG. WITH FNT DRPG S...WL SEE CONTD CHC OF SHWRS/TSTMS
ACRS NRN 1/2 FA LATER TNGT. ACRS SRN 1/2 FA...7H TMPS A LTL COOLER THAN
YSTRDY SO XPCT A LTL BETTER CHC OF SEEING SOME DVLPMT THIS EVNG AND/OR
STRMS ACRS DAY/CMH AREA HOLDING TOGETHER AS THEY PUSH S.

FNT TO PUSH S ACRS FA THRU THE DAY ON MON. SHUD FINALLY SEE SOME
COOLER/DRIER AIR INTO NW FA BY AFTN. ELSWR...COOLING WL HOLD OFF TIL
MON NGT. THUS...AMS WL ONCE AGN BE UNSTBL WITH GOOD CHC OF TSTMS ACRS
AREA DURG THE AFTN AND PERHAPS LINGERING INTO THE EVNG ACRS FAR S. HI
PRES THEN BUILDS IN FOR CLRG SKIES MON NGT AND MSTLY SUNNY TUE.

WITH TMPS/DWPTS RMNG UP ACRS S ON MON...HEAT ADV SEEMS RSBL ACRS ALL
BUT LIMA AREA. PLEASANT DAY ON TAP FOR TUE WITH MUCH DRIER AMS MOVG IN.

CVG 76/92/66/80 5620
DAY 74/91/61/78 6610
CMH 73/91/61/77 7610

LOTT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 3:10 PM EDT	Severe Thunderstorm Warning	ILN	Ross	50 min
Jul 27, 8:15 PM EDT	Severe Thunderstorm Warning	ILN	Owen	50 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1997 Every 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; radar from the NEXRAD Level II archive.