Alert archive / Arkansas / Flash Flood Warnings in 2015

Flash Flood Warning 92, NWS Little Rock, AR

July 21, 2015Baxter County, Marion County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 21, 2015, 5:39 PM CDT for Baxter County, Marion County, Arkansas. It was in force for 4 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
Jul 21, 2015, 5:39 PM CDT (22:39 UTC)
Expired
Jul 21, 2015, 9:15 PM CDT
In force
4 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Baxter County, AR, Marion County, AR

The radar

The Springfield radar (KSGF), 133 km from the middle of the area, began a volume at 22:39 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, 10.7 hours before the alert went out and 134 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, Springfield, MO at 12:00Z on 2015-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 407 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 12:00Z on 2015-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 square meters per square second.193958Sfc1 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
407 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
843 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
59 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Little Rock, AR wrote its last area forecast discussion before this flash flood warning went out at Jul 21, 2:54 PM CDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 21, 2:54 PM CDT, 2 hours 45 minutes before
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Hazardous weather outlook, Jul 21, 5:00 AM CDT, 12 hours 39 minutes before
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</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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In the hours before

Special weather statement, Jul 21, 3:33 PM CDT, 2 hours 6 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.
      </p>
    </section>
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  <script src="index.js"></script>
</body>
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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 7:39 PM CDTSpecial Weather StatementLZKBaxter51 min
Jul 20, 8:04 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton26 min
Jul 20, 8:26 PM CDTSpecial Weather StatementLZKFulton49 min
Jul 20, 8:29 PM CDTSevere Thunderstorm WarningLZKFulton, Izard, Sharp31 min
Jul 20, 9:11 PM CDTSpecial Weather StatementLZKStone34 min
Jul 20, 10:30 PM CDTSpecial Weather StatementLZKJackson45 min
Jul 20, 10:51 PM CDTSpecial Weather StatementLZKConway39 min
Jul 20, 10:52 PM CDTSpecial Weather StatementLZKFaulkner53 min
Jul 20, 11:11 PM CDTSpecial Weather StatementLZKPope34 min
Jul 21, 12:27 AM CDTSpecial Weather StatementLZKPerry48 min
Jul 21, 3:33 PM CDTSpecial Weather StatementLZKGrant27 min
Jul 21, 6:20 PM CDTSpecial Weather StatementLZKSearcy40 min
Jul 21, 6:27 PM CDTSpecial Weather StatementLZKIzard48 min
Jul 21, 6:41 PM CDTSpecial Weather StatementLZKIndependence49 min

Nearby

Flash Flood Warnings in Arkansas, 2015Every flash flood warning in 2015

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.