Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 140, NWS Wilmington, OH

June 12, 1998Auglaize County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 12, 1998, 7:50 PM EDT for Auglaize County, Ohio. It was in force for 45 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: Jun 12, 1998, 7:50 PM EDT (23:50 UTC)
Expired: Jun 12, 1998, 8:35 PM EDT
In force: 45 min
Issued by: NWS Wilmington, OH
Area: Whole counties

County Auglaize County, OH

The radar

The Cincinnati radar (KILN), 131 km from the middle of the area, began a volume at 23:50 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
Jun 12, 8:30 PM EDT	Hail 1.75	Wapakoneta, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 12, 4:45 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.8 hours before the alert went out and 131 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: 685 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 667 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.0

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 Jun 12, 2:45 PM EDT, 5 hours 5 minutes earlier.

Area forecast discussion, Jun 12, 2:45 PM EDT, 5 hours 5 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Jun 12, 4:39 PM EDT, 3 hours 11 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Jun 12, 4:55 PM EDT, 2 hours 55 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Jun 12, 4:55 PM EDT, 2 hours 55 minutes before

OHZ034-035-042>044-051>053-060>063-070>073-077>082-088-INZ050-
058-059-066-073>075-080-KYZ089>100-130400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
455 PM EDT FRI JUN 12 1998

...FLOOD WATCH TONIGHT FOR PORTIONS OF SOUTHWEST-WEST CENTRAL
   AND SOUTH CENTRAL OHIO...

...FLASH FLOOD WATCH TONIGHT FOR SOUTHEAST INDIANA...

VERY WARM AND UNSTABLE AIR IS IN PLACE ACROSS THE SOUTHWEST QUARTER
OF OHIO...SOUTHEAST INDIANA AND NORTHERN KENTUCKY. STRONG TO SEVERE
THUNDERSTORMS WILL DEVELOP ACROSS PARTS OF ILLINOIS AND INDIANA
OVERNIGHT AND TRACK INTO OUR AREA. WITH THE ATMOSPHERE ALREADY VERY
MOIST ACROSS THIS REGION...IT IS EXPECTED THAT THESE STORMS WILL
HAVE THE POTENTIAL OF PRODUCING VERY HEAVY RAINFALL.

WITH MANY OF THE CREEKS...STREAMS AND RIVERS ALREADY HIGH FROM
PREVIOUS HEAVY RAINS OVER THE PAST COUPLE OF DAYS...ADDITIONAL RAINS
WILL BRING THE POTENTIAL OF FLOODING.

NORTHERN KENTUCKY...ALTHOUGH NOT UNDER A FLASH FLOOD WATCH...MAY
ALSO EXPERIENCE HEAVY RAINS TONIGHT. THIS AREA WILL BE MONITORED
THROUGHOUT THE NIGHT.

PLEASE STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR ANY
UPDATES ON THIS SITUATION.

DISTEFANO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 9:06 PM EDT	Tornado Warning	ILN	Darke	49 min
Jun 11, 9:36 PM EDT	Tornado Warning	ILN	Mercer	64 min
Jun 11, 10:11 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize	59 min
Jun 11, 10:34 PM EDT	Flash Flood Warning	ILN	Mercer	91 min
Jun 11, 10:58 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	47 min
Jun 12, 12:22 AM EDT	Severe Thunderstorm Warning	ILN	Clermont	48 min
Jun 12, 12:24 AM EDT	Severe Thunderstorm Warning	ILN	Brown	46 min
Jun 12, 12:36 AM EDT	Tornado Warning	ILN	Highland	49 min
Jun 11, 10:17 PM EDT	Severe Thunderstorm Warning	ILN	Ripley	63 min

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.