Alert archive / Missouri / Areal Flood Warnings in 2011

Areal Flood Warning 9, NWS Springfield, MO

April 22, 2011Barry County, McDonald County, Missouri

NWS Springfield, MO issued this areal flood warning at Apr 22, 2011, 12:56 AM CDT for Barry County, McDonald County, Missouri. It was in force for 16 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 22, 2011, 12:56 AM CDT (05:56 UTC)
Expired
Apr 22, 2011, 5:00 PM CDT
In force
16 hr
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Flood severity
None

Counties Barry County, MO, McDonald County, MO

The radar

The Springfield radar (KSGF), 88 km from the middle of the area, began a volume at 05:55 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

Topeka, KS (KTOP), launched 00:00Z, 5.9 hours before the alert went out and 293 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, Topeka, KS at 00:00Z on 2011-04-22Temperature 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, Topeka, KS at 00:00Z on 2011-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 292 square meters per square second.1939587897Sfc1 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
1049 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
292 m²/s²
0-3 km storm-relative helicity
537 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 warning 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 warning went out at Apr 22, 12:18 AM CDT, 38 minutes earlier.

Area forecast discussion, Apr 22, 12:18 AM CDT, 38 minutes before
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Hazardous weather outlook, Apr 21, 8:02 PM CDT, 4 hours 54 minutes before
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In the hours before

Special weather statement, Apr 21, 7:52 PM CDT, 5 hours 4 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.
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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 Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 7:25 PM CDTFlash Flood WarningSGFBarry, McDonald6 hr
Apr 21, 7:52 PM CDTSpecial Weather StatementSGFBarry23 min
Apr 21, 8:18 PM CDTSevere Thunderstorm WarningSGFChristian, Stone, Taney16 min
Apr 22, 2:22 AM CDTSpecial Weather StatementSGFMaries38 min
Apr 22, 8:01 AM CDTAreal Flood WarningSGFDouglas, Howell, Oregon, Ozark, Shannon, Texas and 1 more5 hr
Apr 22, 10:14 AM CDTRiver Flood WarningSGFShannon15 hr
Apr 22, 10:44 AM CDTRiver Flood WarningSGFPulaski8 days
Apr 22, 1:01 PM CDTAreal Flood WarningSGFDouglas, Howell, Oregon, Shannon4 hr
Apr 22, 3:48 PM CDTSevere Thunderstorm WarningSGFBarton, Dade, Jasper, Lawrence42 min
Apr 22, 4:10 PM CDTSpecial Weather StatementSGFMorgan35 min
Apr 22, 4:16 PM CDTSevere Thunderstorm WarningSGFMorgan32 min
Apr 22, 4:23 PM CDTSevere Thunderstorm WarningSGFDade, Greene, Jasper, Lawrence52 min
Apr 22, 4:26 PM CDTSevere Thunderstorm WarningSGFBenton, Camden64 min
Apr 22, 4:27 PM CDTSevere Thunderstorm WarningSGFBarry, Lawrence, McDonald, Newton48 min
Apr 22, 4:45 PM CDTSevere Thunderstorm WarningSGFCamden, Miller, Morgan45 min
Apr 22, 4:56 PM CDTSevere Thunderstorm WarningSGFDallas, Hickory, Polk38 min
Apr 22, 5:05 PM CDTSevere Thunderstorm WarningSGFPhelps25 min
Apr 22, 5:09 PM CDTSevere Thunderstorm WarningSGFDade, Greene, Lawrence, Polk51 min
Apr 22, 5:13 PM CDTSevere Thunderstorm WarningSGFBarry, Lawrence, McDonald, Newton47 min
Apr 22, 5:25 PM CDTSevere Thunderstorm WarningSGFCamden, Miller, Morgan53 min
Apr 22, 5:29 PM CDTSevere Thunderstorm WarningSGFCamden, Hickory31 min
Apr 22, 5:45 PM CDTSevere Thunderstorm WarningSGFDallas, Greene, Laclede, Polk, Webster60 min
Apr 22, 5:54 PM CDTTornado WarningSGFBarry, Lawrence, Newton51 min
Apr 22, 6:16 PM CDTSevere Thunderstorm WarningSGFDouglas, Howell, Oregon, Ozark, Shannon, Texas59 min
Apr 22, 6:22 PM CDTSevere Thunderstorm WarningSGFGreene, Laclede, Webster, Wright53 min
Apr 22, 6:27 PM CDTTornado WarningSGFWebster, Wright48 min
Apr 22, 6:30 PM CDTTornado WarningSGFBarry, Christian, Lawrence, Stone45 min
Apr 22, 6:40 PM CDTSevere Thunderstorm WarningSGFDade, Greene, Polk50 min
Apr 22, 6:49 PM CDTSevere Thunderstorm WarningSGFLaclede, Phelps, Pulaski, Texas, Wright25 min
Apr 22, 6:57 PM CDTSevere Thunderstorm WarningSGFLawrence29 min
Apr 22, 6:58 PM CDTTornado WarningSGFLaclede, Texas, Webster, Wright47 min

Nearby

Areal Flood Warnings in Missouri, 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.