Alert archive / Indiana / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 135, NWS Northern Indiana

July 19, 1998Pulaski County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 19, 1998, 6:59 AM EST for Pulaski County, Indiana. It was in force for 46 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
Jul 19, 1998, 6:59 AM EST (11:59 UTC)
Expired
Jul 19, 1998, 7:45 AM EST
In force
46 min
Issued by
NWS Northern Indiana
Area
Whole counties

County Pulaski County, IN

The radar

The Northern Indiana radar (KIWX), 91 km from the middle of the area, began a volume at 12:01 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, 12.0 hours before the alert went out and 304 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 1998-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 635 joules per kilogram.LCLEL10008507005003002001001 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 1998-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
635 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1402 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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 Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 19, 6:15 AM EST, 44 minutes earlier.

Area forecast discussion, Jul 19, 6:15 AM EST, 44 minutes before
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In the hours before

Special weather statement, Jul 19, 4:55 AM EST, 2 hours 4 minutes before
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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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Special weather statement, Jul 19, 6:55 AM EST, 4 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.
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The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 19, 4:17 PM ESTSevere Thunderstorm WarningIWXMarshall, Starke48 min
Jul 19, 4:26 PM ESTTornado WarningIWXLaPorte, Saint Joseph49 min
Jul 19, 4:42 PM ESTSevere Thunderstorm WarningIWXFulton48 min
Jul 19, 4:50 PM ESTSevere Thunderstorm WarningIWXKosciusko50 min
Jul 19, 4:53 PM ESTSevere Thunderstorm WarningIWXMiami, Wabash62 min
Jul 19, 4:53 PM ESTSevere Thunderstorm WarningIWXCass62 min
Jul 19, 5:15 PM ESTSevere Thunderstorm WarningIWXNoble, Whitley50 min
Jul 19, 5:29 PM ESTSevere Thunderstorm WarningIWXAllen, Huntington61 min
Jul 19, 5:51 PM ESTTornado WarningIWXElkhart49 min
Jul 19, 5:58 PM ESTSevere Thunderstorm WarningIWXAdams, Wells47 min
Jul 19, 6:03 PM ESTSevere Thunderstorm WarningIWXGrant47 min
Jul 19, 6:32 PM ESTSevere Thunderstorm WarningIWXBlackford48 min
Jul 19, 6:41 PM ESTSevere Thunderstorm WarningIWXJay64 min
Jul 19, 6:55 PM ESTSevere Thunderstorm WarningIWXGrant50 min
Jul 19, 5:10 PM ESTSevere Thunderstorm WarningIWXPaulding50 min
Jul 19, 5:23 PM ESTTornado WarningIWXPaulding47 min
Jul 19, 5:38 PM ESTSevere Thunderstorm WarningIWXPutnam52 min
Jul 19, 5:43 PM ESTSevere Thunderstorm WarningIWXDefiance47 min
Jul 19, 5:47 PM ESTTornado WarningIWXPutnam48 min
Jul 19, 6:05 PM ESTSevere Thunderstorm WarningIWXPaulding, Van Wert50 min
Jul 19, 6:11 PM ESTSevere Thunderstorm WarningIWXHenry49 min
Jul 19, 6:29 PM ESTSevere Thunderstorm WarningIWXAllen, Putnam46 min
Jul 19, 6:53 PM ESTTornado WarningIWXAllen47 min

Nearby

Severe Thunderstorm Warnings in Indiana, 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.