Alert archive / Arkansas / Flash Flood Warnings in 2014

Flash Flood Warning 35, NWS Little Rock, AR

July 9, 2014Polk County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 9, 2014, 9:29 AM CDT for Polk County, Arkansas. It was in force for 2 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 9, 2014, 9:29 AM CDT (14:29 UTC)
Expired
Jul 9, 2014, 11:30 AM CDT
In force
2 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

County Polk County, AR

The radar

The Western Arkansas radar (KSRX), 90 km from the middle of the area, began a volume at 14:32 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

Shreveport, LA (KBAD), launched 12:00Z, 2.5 hours before the alert went out and 227 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, Shreveport, LA at 12:00Z on 2014-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 536 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, Shreveport, LA at 12:00Z on 2014-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
536 J/kg
Mixed-layer CIN
-116 J/kg
Mixed-layer LCL
1245 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
29 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 9, 6:45 AM CDT, 2 hours 44 minutes earlier.

Area forecast discussion, Jul 9, 6:45 AM CDT, 2 hours 44 minutes before
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Hazardous weather outlook, Jul 9, 5:00 AM CDT, 4 hours 29 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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    </section>
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In the hours before

Local storm report, Jul 9, 4:18 AM CDT, 5 hours 11 minutes before
<!doctype html>
<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>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:02 PM CDTSpecial Weather StatementLZKFaulkner28 min
Jul 8, 7:11 PM CDTFlash Flood WarningLZKConway, Faulkner, Perry, Pope, Van Buren, Yell109 min
Jul 8, 7:13 PM CDTSevere Thunderstorm WarningLZKConway, Perry, Yell47 min
Jul 8, 7:20 PM CDTSevere Thunderstorm WarningLZKFaulkner, Perry, Pulaski, White25 min
Jul 8, 7:50 PM CDTSevere Thunderstorm WarningLZKWhite25 min
Jul 8, 8:00 PM CDTSevere Thunderstorm WarningLZKGarland, Montgomery, Perry, Yell30 min
Jul 8, 8:03 PM CDTSpecial Weather StatementLZKLonoke32 min
Jul 8, 8:06 PM CDTSpecial Weather StatementLZKWoodruff14 min
Jul 8, 8:14 PM CDTSevere Thunderstorm WarningLZKWoodruff31 min
Jul 8, 9:57 PM CDTSpecial Weather StatementLZKHot Spring43 min
Jul 8, 10:07 PM CDTSpecial Weather StatementLZKPolk28 min
Jul 8, 10:48 PM CDTFlash Flood WarningLZKPolk, Scott3 hr
Jul 9, 2:00 AM CDTFlash Flood WarningLZKPolk, Scott3 hr
Jul 9, 5:55 AM CDTFlash Flood WarningLZKPolk4 hr

Nearby

Flash Flood Warnings in Arkansas, 2014Every flash flood warning in 2014

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.