Alert archive / Indiana / Heat Advisories in 2012

Heat Advisory 6, NWS Northern Indiana

July 18, 201214 counties in Indiana; 4 counties in Ohio

NWS Northern Indiana issued this heat advisory at Jul 18, 2012, 3:55 AM EDT for 14 counties in Indiana; 4 counties in Ohio. It took effect at Jul 18, 2012, 12:00 PM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 18, 2012, 3:55 AM EDT (07:55 UTC)
In effect from
Jul 18, 2012, 12:00 PM EDT
Expired
Jul 18, 2012, 4:43 PM EDT
In force
5 hr
Issued by
NWS Northern Indiana

Counties Adams County, IN, Allen County, IN, Blackford County, IN, Cass County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Miami County, IN, Pulaski County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Allen County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 63 km from the middle of the area, began a volume at 07:58 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

Detroit, MI (KDTX), launched 00:00Z, 7.9 hours before the alert went out and 267 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, Detroit, MI at 00:00Z on 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 267 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, Detroit, MI at 00:00Z on 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
267 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
2405 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory 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 heat advisory went out at Jul 18, 1:40 AM EDT, 2 hours 15 minutes earlier.

Area forecast discussion, Jul 18, 1:40 AM EDT, 2 hours 15 minutes before
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Hazardous weather outlook, Jul 17, 10:35 PM EDT, 5 hours 20 minutes before
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In the hours before

Special weather statement, Jul 17, 10:08 PM EDT, 5 hours 47 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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Local storm report, Jul 17, 10:22 PM EDT, 5 hours 33 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>
    </section>
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:08 PM EDTSevere Thunderstorm WarningIWXLaGrange52 min
Jul 17, 8:14 PM EDTSpecial Weather StatementIWXElkhart, LaPorte, Saint Joseph61 min
Jul 17, 8:31 PM EDTSpecial Weather StatementIWXSteuben59 min
Jul 17, 8:45 PM EDTSevere Thunderstorm WarningIWXDeKalb, LaGrange, Steuben26 min
Jul 17, 8:59 PM EDTAreal Flood AdvisoryIWXLaGrange, Steuben3 hr
Jul 18, 12:41 PM EDTSpecial Weather StatementIWXWabash19 min
Jul 18, 12:53 PM EDTSpecial Weather StatementIWXAllen22 min
Jul 18, 1:09 PM EDTSpecial Weather StatementIWXAllen36 min
Jul 18, 1:13 PM EDTSpecial Weather StatementIWXHuntington32 min
Jul 18, 1:22 PM EDTSevere Thunderstorm WarningIWXAllen38 min
Jul 18, 1:43 PM EDTSpecial Weather StatementIWXAllen32 min
Jul 18, 1:48 PM EDTSpecial Weather StatementIWXAllen27 min
Jul 18, 1:53 PM EDTSevere Thunderstorm WarningIWXAdams, Allen, Wells27 min
Jul 18, 1:57 PM EDTAreal Flood AdvisoryIWXAdams, Allen, Wells3 hr
Jul 18, 2:10 PM EDTSpecial Weather StatementIWXFulton35 min
Jul 18, 2:32 PM EDTSpecial Weather StatementIWXAdams, Blackford, Jay28 min
Jul 18, 2:44 PM EDTSpecial Weather StatementIWXPulaski31 min
Jul 18, 2:48 PM EDTSpecial Weather StatementIWXWabash27 min
Jul 18, 2:51 PM EDTSpecial Weather StatementIWXMiami24 min
Jul 18, 3:04 PM EDTSpecial Weather StatementIWXBlackford, Jay26 min
Jul 18, 3:18 PM EDTSpecial Weather StatementIWXWabash27 min
Jul 18, 3:42 PM EDTSpecial Weather StatementIWXBlackford33 min
Jul 18, 5:01 PM EDTSpecial Weather StatementIWXCass, White59 min
Jul 18, 5:08 PM EDTSpecial Weather StatementIWXMarshall, Starke52 min
Jul 18, 6:05 PM EDTSpecial Weather StatementIWXFulton25 min
Jul 18, 6:12 PM EDTSevere Thunderstorm WarningIWXKosciusko, Marshall30 min
Jul 18, 6:48 PM EDTSpecial Weather StatementIWXKosciusko42 min
Jul 17, 9:25 PM EDTSpecial Weather StatementIWXDefiance65 min
Jul 17, 10:08 PM EDTSpecial Weather StatementIWXHenry67 min
Jul 18, 12:28 PM EDTSpecial Weather StatementIWXVan Wert17 min
Jul 18, 12:44 PM EDTSpecial Weather StatementIWXVan Wert31 min
Jul 18, 2:03 PM EDTSevere Thunderstorm WarningIWXAllen, Putnam36 min
Jul 18, 2:41 PM EDTSpecial Weather StatementIWXAllen34 min
Jul 18, 10:40 AM EDTSpecial Weather StatementIWXBranch35 min

Nearby

Heat Advisories in Indiana, 2012Heat Advisories in Ohio, 2012Every heat advisory in 2012

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.