Alert archive / Indiana / Areal Flood Warnings in 2011

Areal Flood Warning 28, NWS Indianapolis, IN

April 28, 2011Boone County, Montgomery County, Indiana

NWS Indianapolis, IN issued this areal flood warning at Apr 28, 2011, 5:27 AM EDT for Boone County, Montgomery County, Indiana. It was in force for 30 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 28, 2011, 5:27 AM EDT (09:27 UTC)
Expired
Apr 29, 2011, 11:30 AM EDT
In force
30 hr
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Flood severity
None

Counties Boone County, IN, Montgomery County, IN

The radar

The Indianapolis radar (KIND), 51 km from the middle of the area, began a volume at 09:30 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, 9.5 hours before the alert went out and 256 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 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
775 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
521 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this areal flood warning went out at Apr 28, 4:10 AM EDT, 1 hour 17 minutes earlier.

Area forecast discussion, Apr 28, 4:10 AM EDT, 1 hour 17 minutes before
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Hazardous weather outlook, Apr 28, 5:19 AM EDT, 8 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>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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In the hours before

Special weather statement, Apr 28, 4:46 AM EDT, 41 minutes before
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<head>
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  <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>
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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 Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 27, 9:03 PM EDTAreal Flood WarningINDClay, Fountain, Montgomery, Parke, Putnam, Sullivan and 4 more7 hr
Apr 27, 9:59 PM EDTAreal Flood WarningINDBoone, Hendricks3 hr
Apr 27, 10:55 PM EDTSpecial Weather StatementINDRandolph35 min
Apr 27, 10:58 PM EDTTornado WarningINDDelaware, Randolph27 min
Apr 27, 11:19 PM EDTTornado WarningINDRandolph15 min
Apr 28, 12:40 AM EDTWind AdvisoryINDBartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more4 hr
Apr 28, 1:08 AM EDTRiver Flood WarningINDCarroll, Tippecanoe, White41 hr
Apr 28, 6:36 AM EDTAreal Flood WarningINDBoone, Carroll, Clinton, Fountain, Hamilton, Howard and 5 more29 hr
Apr 28, 6:47 AM EDTAreal Flood WarningINDClay, Greene, Hendricks, Marion, Montgomery, Morgan and 6 more29 hr
Apr 28, 4:28 PM EDTSpecial Weather StatementINDJohnson47 min
Apr 28, 4:30 PM EDTSevere Thunderstorm WarningINDBrown, Monroe30 min
Apr 28, 4:37 PM EDTSpecial Weather StatementINDKnox38 min
Apr 28, 4:57 PM EDTSpecial Weather StatementINDBartholomew48 min
Apr 28, 5:12 PM EDTSpecial Weather StatementINDJackson48 min
Apr 28, 5:14 PM EDTSpecial Weather StatementINDMartin46 min
Apr 28, 5:29 PM EDTSevere Thunderstorm WarningINDJackson, Jennings20 min
Apr 28, 5:37 PM EDTSpecial Weather StatementINDMonroe38 min
Apr 28, 5:52 PM EDTSpecial Weather StatementINDJennings23 min
Apr 28, 6:32 PM EDTRiver Flood WarningINDHamilton, Marion23 hr

Nearby

Areal Flood Warnings in Indiana, 2011Every areal flood warning in 2011

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.