Alert archive / Indiana / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 209, NWS Indianapolis, IN

July 11, 1993Hamilton County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 11, 1993, 6:03 PM EST for Hamilton County, Indiana. It was in force for 42 min.

The area

The counties it named.

The facts

Issued: Jul 11, 1993, 6:03 PM EST (23:03 UTC)
Expired: Jul 11, 1993, 6:45 PM EST
In force: 42 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Hamilton County, IN

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 11.1 hours before the alert went out and 159 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: 593 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1106 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

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.

In the hours before

Special weather statement, Jul 11, 4:25 PM EST, 1 hour 38 minutes before

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Special weather statement, Jul 11, 4:25 PM EST, 1 hour 38 minutes before

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Special weather statement, Jul 11, 5:00 PM EST, 1 hour 3 minutes before

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Special weather statement, Jul 11, 5:02 PM EST, 1 hour 1 minute before

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      <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">
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Special weather statement, Jul 11, 5:20 PM EST, 43 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.
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      <p id="message2">
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      <p class="small" id="detail">
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Special weather statement, Jul 11, 5:24 PM EST, 39 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.
      </p>
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The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 10:34 PM EST	Severe Thunderstorm Warning	IND	Montgomery	41 min
Jul 11, 2:53 PM EST	Severe Thunderstorm Warning	IND	Fulton	21 min
Jul 11, 2:54 PM EST	Severe Thunderstorm Warning	IND	Cass	46 min
Jul 11, 4:51 PM EST	Severe Thunderstorm Warning	IND	Montgomery, Tippecanoe	54 min
Jul 11, 5:20 PM EST	Severe Thunderstorm Warning	IND	Montgomery	40 min
Jul 11, 5:21 PM EST	Severe Thunderstorm Warning	IND	Clinton	24 min
Jul 11, 5:37 PM EST	Severe Thunderstorm Warning	IND	Boone	68 min
Jul 11, 5:59 PM EST	Severe Thunderstorm Warning	IND	Montgomery	61 min
Jul 11, 6:10 PM EST	Severe Thunderstorm Warning	IND	Parke	50 min
Jul 11, 6:11 PM EST	Severe Thunderstorm Warning	IND	Clay	34 min
Jul 11, 6:19 PM EST	Severe Thunderstorm Warning	IND	Hendricks	41 min
Jul 11, 6:32 PM EST	Severe Thunderstorm Warning	IND	Putnam	43 min
Jul 11, 6:41 PM EST	Severe Thunderstorm Warning	IND	Marion	64 min
Jul 11, 6:51 PM EST	Severe Thunderstorm Warning	IND	Hendricks	54 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1993 Every severe thunderstorm warning in 1993

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.