Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 296, NWS Wilmington, OH

August 25, 1998Hardin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 25, 1998, 2:03 PM EDT for Hardin County, Ohio. It was in force for 42 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
Aug 25, 1998, 2:03 PM EDT (18:03 UTC)
Expired
Aug 25, 1998, 2:45 PM EDT
In force
42 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 18:02 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

TimeReportWhereRemark
Aug 25, 2:25 PM EDTThunderstorm Wind 60Kenton, OHNumerous trees knocked down.

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, 6.1 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 12:00Z on 1998-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 369 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 1998-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 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
369 J/kg
Mixed-layer CIN
-244 J/kg
Mixed-layer LCL
1371 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Aug 25, 10:03 AM EDT, 4 hours earlier.

Area forecast discussion, Aug 25, 10:03 AM EDT, 4 hours before
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In the hours before

Special weather statement, Aug 25, 8:20 AM EDT, 5 hours 43 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.
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Special weather statement, Aug 25, 10:48 AM EDT, 3 hours 15 minutes before
OHZ026-034-035-042>046-051>056-060>065-070>074-077>082-088-INZ
050-058-059-066-073>075-080-KYZ091>093-252100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1048 AM EDT TUE AUG 25 1998

...SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING...

A COLD FRONT IS EXPECTED TO DROP SOUTHWARD ACROSS THE OHIO VALLEY
LATE THIS AFTERNOON AND INTO THE EVENING HOURS.  AHEAD OF THE FRONT
THE ATMOSPHERE WILL BECOME VERY UNSTABLE. SCATTERED THUNDERSTORMS
WILL DEVELOP AND MOVE INTO WEST-CENTRAL OHIO DURING THE EARLY
AFTERNOON HOURS AND THEN SPREAD INTO THE MIAMI AND WHITEWATER
VALLEYS AND CENTRAL OHIO BY MID AFTERNOON.   OVER FAR SOUTHERN OHIO
...SOUTHEASTERN INDIANA AND EXTREME NORTHERN KENTUCKY...SCATTERED
THUNDERSTORMS CAN BE EXPECTED BY LATE AFTERNOON.

THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING WINDS IN EXCESS
OF 60 MPH.  HAIL GREATER THAN 3/4 OF AN INCH IN DIAMETER IS ALSO
POSSIBLE.

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EVENING.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

WILKINSON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 8:23 PM EDTSevere Thunderstorm WarningILNGreene32 min
Aug 25, 3:24 PM EDTSevere Thunderstorm WarningILNLogan46 min
Aug 25, 3:34 PM EDTTornado WarningILNLicking66 min
Aug 25, 3:35 PM EDTSevere Thunderstorm WarningILNShelby35 min
Aug 25, 3:39 PM EDTSevere Thunderstorm WarningILNDarke46 min
Aug 25, 3:39 PM EDTSevere Thunderstorm WarningILNDelaware61 min
Aug 25, 3:47 PM EDTSevere Thunderstorm WarningILNChampaign63 min
Aug 25, 3:54 PM EDTSevere Thunderstorm WarningILNMiami46 min
Aug 25, 4:08 PM EDTSevere Thunderstorm WarningILNUnion47 min
Aug 25, 4:17 PM EDTSevere Thunderstorm WarningILNFranklin63 min
Aug 25, 4:19 PM EDTSevere Thunderstorm WarningILNMadison66 min
Aug 25, 4:26 PM EDTSevere Thunderstorm WarningILNLicking59 min
Aug 25, 4:31 PM EDTSevere Thunderstorm WarningILNClark64 min
Aug 25, 5:13 PM EDTSevere Thunderstorm WarningILNPickaway62 min
Aug 25, 5:18 PM EDTSevere Thunderstorm WarningILNFayette62 min
Aug 25, 5:44 PM EDTSevere Thunderstorm WarningILNFairfield61 min
Aug 25, 5:49 PM EDTSevere Thunderstorm WarningILNMontgomery61 min
Aug 25, 6:00 PM EDTSevere Thunderstorm WarningILNHocking65 min
Aug 25, 6:19 PM EDTSevere Thunderstorm WarningILNRoss76 min
Aug 25, 6:37 PM EDTSevere Thunderstorm WarningILNHamilton33 min
Aug 25, 7:16 PM EDTSevere Thunderstorm WarningILNClermont29 min
Aug 25, 7:19 PM EDTSevere Thunderstorm WarningILNPike51 min
Aug 25, 7:25 PM EDTSevere Thunderstorm WarningILNBrown30 min
Aug 25, 7:28 PM EDTSevere Thunderstorm WarningILNOhio32 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1998Every severe thunderstorm warning in 1998

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.