Alert archive / Nebraska / Areal Flood Advisories in 2021

Areal Flood Advisory 2, NWS Hastings, NE

March 13, 20214 counties in Nebraska

NWS Hastings, NE issued this areal flood advisory at Mar 13, 2021, 11:26 PM CST for 4 counties in Nebraska. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued: Mar 13, 2021, 11:26 PM CST (05:26 UTC)
Expired: Mar 15, 2021, 10:00 AM CDT
In force: 34 hr
Issued by: NWS Hastings, NE
Area: Storm-based polygon

Counties Adams County, NE, Clay County, NE, Franklin County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 6 km from the middle of the area, began a volume at 05:26 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

Omaha, NE (KOAX), launched 00:00Z, 5.4 hours before the alert went out and 209 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1526 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 68 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 Hastings, NE wrote its last area forecast discussion before this areal flood advisory went out at Mar 13, 6:08 PM CST, 5 hours 18 minutes earlier.

Area forecast discussion, Mar 13, 6:08 PM CST, 5 hours 18 minutes before

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In the hours before

Special weather statement, Mar 13, 6:47 PM CST, 4 hours 39 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 Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 13, 6:47 PM CST	Special Weather Statement	GID	Clay	28 min
Mar 14, 9:50 AM CDT	Areal Flood Advisory	GID	Clay	7 hr
Mar 14, 10:35 AM CDT	River Flood Warning	GID	Clay, Nuckolls	16 hr
Mar 14, 11:38 AM CDT	River Flood Warning	GID	Hall	15 hr
Mar 14, 11:38 AM CDT	River Flood Warning	GID	Buffalo	31 hr
Mar 14, 12:08 PM CDT	River Flood Warning	GID	Nuckolls, Webster	8 hr
Mar 14, 2:03 PM CDT	Areal Flood Advisory	GID	Adams, Hall	20 hr

Nearby

Areal Flood Advisories in Nebraska, 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.