Alert archive / Indiana / Winter Weather Advisories in 2016

Winter Weather Advisory 5, NWS Indianapolis, IN

February 23, 201625 counties in Indiana

NWS Indianapolis, IN issued this winter weather advisory at Feb 23, 2016, 4:05 PM EST for 25 counties in Indiana. It took effect at Feb 24, 2016, 9:02 AM EST. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued
Feb 23, 2016, 4:05 PM EST (21:05 UTC)
In effect from
Feb 24, 2016, 9:02 AM EST
Expired
Feb 25, 2016, 4:55 PM EST
In force
32 hr
Issued by
NWS Indianapolis, IN
All 25 counties

Boone County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Delaware County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Knox County, IN, Madison County, IN, Marion County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Putnam County, IN, Randolph County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vigo County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 26 km from the middle of the area, began a volume at 21:03 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 12:00Z, 9.1 hours before the alert went out and 182 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, Lincoln, IL at 12:00Z on 2016-02-23Temperature 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, Lincoln, IL at 12:00Z on 2016-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
1132 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
88 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 winter weather advisory 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 winter weather advisory went out at Feb 23, 4:00 PM EST, 5 minutes earlier.

Area forecast discussion, Feb 23, 4:00 PM EST, 5 minutes before
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Hazardous weather outlook, Feb 23, 5:10 AM EST, 10 hours 55 minutes before
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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <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>
      <p class="small" id="detail">
        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
Feb 23, 3:53 AM ESTWinter Storm WatchINDCarroll, Clinton, Fountain, Montgomery, Parke, Tippecanoe and 2 more12 hr
Feb 23, 12:11 PM ESTRiver Flood WarningINDLawrence, Martin7 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDJackson, Lawrence, Washington12 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDDaviess, Greene, Knox7 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDDaviess, Gibson, Knox, Pike8 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDDaviess, Gibson, Knox, Pike12 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDGibson, Knox13 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDJackson, Lawrence, Washington5 days
Feb 23, 12:11 PM ESTRiver Flood WarningINDLawrence, Martin8 days
Feb 23, 4:05 PM ESTWinter Storm WarningINDCarroll, Clinton, Fountain, Howard, Montgomery, Parke and 3 more36 hr

Nearby

Winter Weather Advisories in Indiana, 2016Every winter weather advisory in 2016

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.