Alert archive / Missouri / Areal Flood Advisories in 2021

Areal Flood Advisory 49, NWS Springfield, MO

July 25, 20214 counties in Missouri

NWS Springfield, MO issued this areal flood advisory at Jul 25, 2021, 12:37 PM CDT for 4 counties in Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jul 25, 2021, 12:37 PM CDT (17:37 UTC)
Expired: Jul 25, 2021, 5:00 PM CDT
In force: 4 hr
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Camden County, MO, Dallas County, MO, Hickory County, MO, Laclede County, MO

The radar

The Springfield radar (KSGF), 78 km from the middle of the area, began a volume at 17:37 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

Springfield, MO (KSGF), launched 12:00Z, 5.6 hours before the alert went out and 129 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: 2314 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 53 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 areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this areal flood advisory went out at Jul 25, 12:05 PM CDT, 32 minutes earlier.

Area forecast discussion, Jul 25, 12:05 PM CDT, 32 minutes before

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Hazardous weather outlook, Jul 25, 4:09 AM CDT, 8 hours 28 minutes before

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  <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 Springfield, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 25, 12:52 PM CDT	Flash Flood Warning	SGF	Dallas	3 hr
Jul 25, 1:35 PM CDT	Flash Flood Warning	SGF	Hickory, Polk, St. Clair	4 hr
Jul 25, 1:45 PM CDT	Areal Flood Advisory	SGF	Barton, Dade	4 hr
Jul 25, 2:04 PM CDT	Areal Flood Advisory	SGF	Greene, Webster, Wright	4 hr
Jul 25, 2:18 PM CDT	Areal Flood Advisory	SGF	Greene	5 hr

Nearby

Areal Flood Advisories in Missouri, 2021 Every areal flood advisory in 2021

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.