Alert archive / Ohio / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 22, NWS Wilmington, OH

April 15, 1998Ross County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 15, 1998, 8:07 PM EDT for Ross County, Ohio. It was in force for 48 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
Apr 15, 1998, 8:07 PM EDT (00:07 UTC)
Expired
Apr 15, 1998, 8:55 PM EDT
In force
48 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Ross County, OH

The radar

The Cincinnati radar (KILN), 66 km from the middle of the area, began a volume at 00:09 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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.1 hours before the alert went out and 65 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 1998-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 1998-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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 15, 2:47 PM EDT, 5 hours 20 minutes earlier.

Area forecast discussion, Apr 15, 2:47 PM EDT, 5 hours 20 minutes before
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In the hours before

Special weather statement, Apr 15, 3:53 PM EDT, 4 hours 14 minutes before
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<html lang="en">
<head>
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  <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>
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</body>
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Special weather statement, Apr 15, 3:53 PM EDT, 4 hours 14 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>

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 11:42 PM EDTFlash Flood WarningILNButler118 min
Apr 16, 1:33 AM EDTFlash Flood WarningILNButler3 hr
Apr 16, 1:48 AM EDTFlash Flood WarningILNHamilton3 hr
Apr 16, 2:12 AM EDTFlash Flood WarningILNClermont, Clinton, Warren3 hr
Apr 16, 3:48 AM EDTFlash Flood WarningILNHamilton3 hr
Apr 16, 4:05 AM EDTFlash Flood WarningILNButler3 hr
Apr 16, 5:05 AM EDTFlash Flood WarningILNClermont, Clinton, Warren4 hr
Apr 16, 6:36 AM EDTFlash Flood WarningILNHamilton3 hr
Apr 16, 7:30 AM EDTFlash Flood WarningILNClermont, Warren3 hr
Apr 16, 7:36 AM EDTFlash Flood WarningILNFranklin3 hr
Apr 16, 8:11 AM EDTFlash Flood WarningILNFranklin2 hr
Apr 16, 4:35 PM EDTSevere Thunderstorm WarningILNMercer65 min
Apr 16, 5:44 PM EDTSevere Thunderstorm WarningILNPreble46 min
Apr 16, 6:00 PM EDTSevere Thunderstorm WarningILNMontgomery35 min
Apr 16, 5:10 AM EDTFlash Flood WarningILNCarroll3 hr
Apr 16, 7:30 AM EDTFlash Flood WarningILNCarroll, Gallatin, Owen3 hr
Apr 16, 8:34 AM EDTFlash Flood WarningILNKenton3 hr
Apr 15, 10:53 PM EDTFlash Flood WarningILNFranklin2 hr
Apr 15, 11:09 PM EDTSevere Thunderstorm WarningILNFranklin, Ripley46 min
Apr 16, 12:30 AM EDTFlash Flood WarningILNDearborn, Ripley2 hr
Apr 16, 12:47 AM EDTFlash Flood WarningILNFranklin118 min
Apr 16, 1:35 AM EDTFlash Flood WarningILNDearborn, Franklin, Ripley115 min
Apr 16, 3:35 AM EDTFlash Flood WarningILNDearborn, Franklin, Ripley3 hr
Apr 16, 5:10 AM EDTFlash Flood WarningILNOhio, Switzerland3 hr
Apr 16, 7:03 AM EDTFlash Flood WarningILNDearborn, Franklin, Ripley3 hr
Apr 16, 7:30 AM EDTFlash Flood WarningILNOhio3 hr
Apr 16, 5:14 PM EDTSevere Thunderstorm WarningILNFranklin56 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.