Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 117, NWS Wilmington, OH

July 9, 1997Hardin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 9, 1997, 12:40 AM EDT for Hardin County, Ohio. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 9, 1997, 12:40 AM EDT (04:40 UTC)
Expired
Jul 9, 1997, 1:25 AM EDT
In force
45 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Hardin County, OH

The radar

The Cincinnati radar (KILN), 139 km from the middle of the area, began a volume at 04:39 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 8, 9:00 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.7 hours before the alert went out and 138 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 00:00Z on 1997-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 702 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 00:00Z on 1997-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
702 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1294 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

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 8, 9:37 PM EDT, 3 hours 3 minutes earlier.

Area forecast discussion, Jul 8, 9:37 PM EDT, 3 hours 3 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
935 PM EDT TUE JUL 8 1997

00Z SFC ANLYS SHWG LOW PRES OVR SE MI WITH CDFNT TRAILING BACK ACRS
NRN IND. BEST UPR LVL DYNAMICS ACRS NRN FA THIS EVNG IN RRQ OF 2H JET
WITH ADAP CHARTS AND RUM DATA INDCTDG BEST CONV ACRS NRN IND. SFC DWPTS
FAIRLY HIGH ACRS AREA WITH READINGS IN THE MID TO UPR 60S AND ILN 00Z
RAOB MARGINALLY TO MODERATELY UNSTBL WITH LI OF -4 AND CAPE OF ARND
1300. LLVL CONV PROGD TO WKN THRU TNGT AS FNT DRPS S ACRS FA. IN
ADDITION...BEST UPR LVL DIVG SHUD SHIFT E OF FA WITH UPR LVL JET.
THUS WUD XPCT TSTMS TO WKN AS THEY DROP SE THRU THIS EVNG AND DURG OVRNGT
HRS. BEST CHC FOR SVR WL LIKELY BE ACRS LIMA AREA IN AREA CLOSEST TO
CRNT ACTVTY. LIKELY POPS STILL LUK GOOD FOR NRN HALF OF FA TNGT WITH
CHC POPS ACRS SRN HALF FA BUT TSTMS WL BE SLOW TO MOV S. CRNT TIMING
WUD NOT BRING PCPN INTO DAY AND CMH AREAS TIL 2 OR 3 AM AND INTO CINCI
AREA LATE TNGT...SOMETIME AFTER 4 AM. DWPTS SHUD RMN UP FOR MOST OF
NGT SO CRNT LOW TMP FCST OF MID TO UPR 60S RSNBL ACRS FA.

LOTT

In the hours before

Local storm report, Jul 8, 10:17 PM EDT, 2 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1017 PM EDT TUE JUL 08 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1010 PM    LEIPSIC                   OH   60 MPH TSTM GUST
07/08/97   PUTNAM
Local storm report, Jul 8, 10:19 PM EDT, 2 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1017 PM EDT TUE JUL 08 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1010 PM    LEIPSIC                   OH   60 MPH TSTM GUST
07/08/97   PUTNAM
Local storm report, Jul 8, 11:59 PM EDT, 41 minutes before
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Local storm report, Jul 9, 12:01 AM EDT, 39 minutes before
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Local storm report, Jul 9, 12:10 AM EDT, 30 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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Local storm report, Jul 9, 12:12 AM EDT, 28 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 9:31 PM EDTSevere Thunderstorm WarningILNPaulding59 min
Jul 8, 9:57 PM EDTSevere Thunderstorm WarningILNPutnam58 min
Jul 8, 10:46 PM EDTFlash Flood WarningILNPutnam119 min
Jul 8, 11:06 PM EDTFlash Flood WarningILNPaulding119 min
Jul 9, 12:02 AM EDTSevere Thunderstorm WarningILNPutnam58 min
Jul 9, 12:15 AM EDTSevere Thunderstorm WarningILNAllen45 min
Jul 9, 1:59 AM EDTSevere Thunderstorm WarningILNLogan36 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.