Alert archive / Illinois / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 93, NWS Paducah, KY

May 20, 1998White County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at May 20, 1998, 9:26 PM CDT for White County, Illinois. It was in force for 49 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
May 20, 1998, 9:26 PM CDT (02:26 UTC)
Expired
May 20, 1998, 10:15 PM CDT
In force
49 min
Issued by
NWS Paducah, KY
Area
Whole counties

County White County, IL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.4 hours before the alert went out and 259 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, Nashville Metro, TN at 00:00Z on 1998-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1938 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, Nashville Metro, TN at 00:00Z on 1998-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
1938 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1430 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
86 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 Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 20, 2:00 AM CDT, 19 hours 26 minutes earlier.

Area forecast discussion, May 20, 2:00 AM CDT, 19 hours 26 minutes before
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In the hours before

Local storm report, May 20, 5:31 PM CDT, 3 hours 55 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.
      </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, May 20, 6:11 PM CDT, 3 hours 15 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>
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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 4:17 PM CDTSevere Thunderstorm WarningPAHBallard, McCracken48 min
May 21, 4:17 PM CDTSevere Thunderstorm WarningPAHLivingston48 min
May 21, 4:24 PM CDTSevere Thunderstorm WarningPAHGraves, Marshall36 min
May 21, 4:24 PM CDTSevere Thunderstorm WarningPAHCarlisle36 min
May 21, 4:37 PM CDTSevere Thunderstorm WarningPAHCaldwell, Crittenden, Lyon, Webster33 min
May 21, 4:37 PM CDTSevere Thunderstorm WarningPAHUnion33 min
May 21, 4:53 PM CDTSevere Thunderstorm WarningPAHHopkins37 min
May 21, 5:09 PM CDTSevere Thunderstorm WarningPAHChristian, Muhlenberg, Trigg51 min
May 21, 5:15 PM CDTSevere Thunderstorm WarningPAHFulton, Hickman45 min
May 21, 5:15 PM CDTSevere Thunderstorm WarningPAHCalloway, Graves45 min
May 21, 5:48 PM CDTSevere Thunderstorm WarningPAHTodd27 min
May 21, 2:22 PM CDTSevere Thunderstorm WarningPAHPerry53 min
May 21, 2:44 PM CDTSevere Thunderstorm WarningPAHJefferson46 min
May 21, 2:59 PM CDTSevere Thunderstorm WarningPAHFranklin46 min
May 21, 3:18 PM CDTSevere Thunderstorm WarningPAHJackson, Union, Williamson42 min
May 21, 3:39 PM CDTSevere Thunderstorm WarningPAHJohnson, Pope, Saline36 min
May 21, 3:55 PM CDTSevere Thunderstorm WarningPAHMassac, Pulaski35 min
May 21, 4:07 PM CDTSevere Thunderstorm WarningPAHGallatin, Hardin38 min
May 21, 3:01 PM CDTSevere Thunderstorm WarningPAHPerry44 min
May 21, 3:20 PM CDTSevere Thunderstorm WarningPAHCape Girardeau40 min
May 21, 4:11 PM CDTSevere Thunderstorm WarningPAHCape Girardeau, Scott49 min
May 21, 4:13 PM CDTSevere Thunderstorm WarningPAHWayne47 min
May 21, 4:40 PM CDTSevere Thunderstorm WarningPAHMississippi35 min
May 21, 4:58 PM CDTSevere Thunderstorm WarningPAHMississippi, New Madrid47 min
May 21, 5:45 PM CDTSevere Thunderstorm WarningPAHNew Madrid30 min

Nearby

Severe Thunderstorm Warnings in Illinois, 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.