Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 20, NWS Wilmington, OH

April 8, 1998Hardin County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 8, 1998, 10:46 PM EDT for Hardin County, Ohio. It was in force for 54 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: Apr 8, 1998, 10:46 PM EDT (02:46 UTC)
Expired: Apr 8, 1998, 11:40 PM EDT
In force: 54 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 02:47 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
Apr 8, 11:00 PM EDT	Hail 0.88	Kenton, OH

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 00:00Z, 2.8 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-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: 149 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1572 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 Apr 8, 8:10 PM EDT, 2 hours 36 minutes earlier.

Area forecast discussion, Apr 8, 8:10 PM EDT, 2 hours 36 minutes before

FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
810 PM EDT WED APR 8 1998

BRIEF RESPITE FROM SHRA/TSRA ACRS CWA COMING TO AN END. UPSTREAM TROF
AT MID/UPR LVLS DIGGING INTO OH VLY AND ASSOCIATED SFC FRNT PRESSING
TWD REGION FROM W...AND WDSPRD SHRA/TSRA HAVE DEVELOPED ACRS W/CNTL
KY...S IND AND THRU AREAS WELL S/SW OF OH VLY. SHRA/TSRA WL OVERSPREAD
CWA FROM SW TO NE DURG NEXT FEW HRS...AND CATEGORICAL POPS IN ORDER FOR
ALL AREAS XCPT PERHAPS FAR N/NW...WHERE LIKELY POPS MAY SUFFICE.

CONDITIONS WL REMAIN FAVORABLE FOR SVR TSTMS TIL WELL AFTER MIDNITE...
AND MENTION OF SVR IN ORDER ACRS CNTL/S COUNTIES. ACRS OH AREA 1/5
COUNTIES N OF DAY-CMH...SFC FRNT ACRS N OH WL SETTLE INTO REGION FROM N
OVERNITE AND MAY LIMIT SVR POTENTIAL SOMEWHAT.

ALSO...MENTION OF HVY RAIN IN ORDER FOR AT LEAST CNTL/S SECTIONS.

CURRNT FCST LOS MAY BE A BIT ON THE LO SIDE ACRS CNTL/S COUNTIES...
TMPS IN 40S/50S WELL UPSTRM AND MAY NOT ARRIVE BEFORE 12Z.

ALSO...WINDS WL SHIFT TO W ACRS CNTL/S OH LATER TONITE...NOT INTO
N PER CURRNT FCSTS.

ROWLEY

In the hours before

Local storm report, Apr 8, 5:45 PM EDT, 5 hours 1 minute before

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Local storm report, Apr 8, 5:45 PM EDT, 5 hours 1 minute before

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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Apr 8, 8:05 PM EDT, 2 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
805 PM EDT WED APR 08 1998

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

0204 PM    FLINT                     OH   .75 INCH HAIL
04/08/98   FRANKLIN

Local storm report, Apr 8, 10:00 PM EDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1000 PM EDT WED APR 08 1998

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

0959 PM    HAGERSTOWN                IN   1.75 INCH HAIL
04/08/98   WAYNE                          GOLF BALL SIZE HAIL
                                          REPORTED BY HAGERSTOWN
                                          MARSHALL AT 900 PM EST

Local storm report, Apr 8, 10:09 PM EDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1009 PM EDT WED APR 08 1998

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

1009 PM    ECONOMY                   IN   1.75 INCH HAIL
04/08/98   WAYNE                          GOLF BALL SIZE HAIL
                                          REPORTED BY INDIANA
                                          STATE POLICE AT 908
                                          PM EST

Local storm report, Apr 8, 10:09 PM EDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1009 PM EDT WED APR 08 1998

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

1009 PM    ECONOMY                   IN   1.75 INCH HAIL
04/08/98   WAYNE                          GOLF BALL SIZE HAIL
                                          REPORTED BY INDIANA
                                          STATE POLICE AT 908
                                          PM EST

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 10:25 PM EDT	Severe Thunderstorm Warning	ILN	Logan	30 min
Apr 9, 12:33 AM EDT	Flash Flood Warning	ILN	Logan, Shelby	117 min
Apr 9, 5:49 AM EDT	Flash Flood Warning	ILN	Shelby	116 min
Apr 9, 6:41 AM EDT	Flash Flood Warning	ILN	Logan	119 min
Apr 8, 9:33 PM EDT	Severe Thunderstorm Warning	ILN	Wayne	37 min
Apr 9, 1:05 PM EDT	Flash Flood Warning	ILN	Fayette, Union, Wayne	4 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 1998 Every 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.