Alert archive / Indiana / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 15, NWS Louisville, KY

June 13, 1987Washington County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Jun 13, 1987, 4:24 PM EST for Washington County, Indiana. It was in force for 66 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 13, 1987, 4:24 PM EST (21:24 UTC)
Expired: Jun 13, 1987, 5:30 PM EST
In force: 66 min
Issued by: NWS Louisville, KY
Area: Whole counties

County Washington County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 13, 4:35 PM EST	Thunderstorm Wind 0	Washington, IN

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 9.4 hours before the alert went out and 219 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: 136 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 960 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

In the hours before

Special weather statement, Jun 13, 2:41 PM EST, 1 hour 43 minutes before

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Special weather statement, Jun 13, 3:09 PM EST, 1 hour 15 minutes before

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Special weather statement, Jun 13, 4:14 PM EST, 10 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">
        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 7:05 PM EST	Severe Thunderstorm Warning	LMK	Jefferson	40 min
Jun 12, 7:48 PM EST	Severe Thunderstorm Warning	LMK	Hardin	57 min
Jun 12, 8:42 PM EST	Severe Thunderstorm Warning	LMK	Larue, Nelson	63 min
Jun 13, 6:19 PM EST	Severe Thunderstorm Warning	LMK	Jefferson	41 min
Jun 13, 5:28 PM EST	Severe Thunderstorm Warning	LMK	Orange, Washington	62 min
Jun 13, 5:58 PM EST	Severe Thunderstorm Warning	LMK	Floyd	47 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1987 Every severe thunderstorm warning in 1987

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.