Alert archive / Indiana / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 43, NWS Northern Indiana

July 16, 2009Elkhart County, Kosciusko County, Marshall County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 16, 2009, 10:13 PM EDT for Elkhart County, Kosciusko County, Marshall County, Indiana. It was in force for 47 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 16, 2009, 10:13 PM EDT (02:13 UTC)
Expired: Jul 16, 2009, 11:00 PM EDT
In force: 47 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon

Counties Elkhart County, IN, Kosciusko County, IN, Marshall County, IN

The radar

The Northern Indiana radar (KIWX), 25 km from the middle of the area, began a volume at 02:14 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

Lincoln, IL (KILX), launched 00:00Z, 2.2 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-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: 257 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1312 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

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 16, 7:10 PM EDT, 3 hours 3 minutes earlier.

Area forecast discussion, Jul 16, 7:10 PM EDT, 3 hours 3 minutes before

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Hazardous weather outlook, Jul 16, 7:10 PM EDT, 3 hours 3 minutes before

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</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.
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        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.

Issued	Product	Office	Counties	Lasted
Jul 16, 8:50 PM EDT	Special Weather Statement	IWX	LaPorte	25 min
Jul 16, 9:09 PM EDT	Special Weather Statement	IWX	LaPorte	36 min
Jul 16, 9:22 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Starke	23 min
Jul 16, 9:28 PM EDT	Special Weather Statement	IWX	Elkhart, Saint Joseph	32 min
Jul 16, 9:45 PM EDT	Special Weather Statement	IWX	Marshall	30 min
Jul 16, 10:04 PM EDT	Special Weather Statement	IWX	Elkhart, Noble	26 min
Jul 16, 10:55 PM EDT	Special Weather Statement	IWX	Noble	35 min
Jul 17, 1:10 AM EDT	Special Weather Statement	IWX	Adams	35 min
Jul 17, 4:03 AM EDT	Small Craft Advisory	IWX		40 hr
Jul 17, 4:07 AM EDT	Lakeshore Flood Statement	IWX		40 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2009 Every severe thunderstorm warning in 2009

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.