Alert archive / Arkansas / Flash Flood Warnings in 2020

Flash Flood Warning 33, NWS Little Rock, AR

May 26, 2020Logan County, Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this flash flood warning at May 26, 2020, 10:24 PM CDT for Logan County, Polk County, Scott County, Arkansas. It was in force for 3 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
May 26, 2020, 10:24 PM CDT (03:24 UTC)
Expired
May 27, 2020, 1:30 AM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Logan County, AR, Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 59 km from the middle of the area, began a volume at 03:25 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 (KSHV), launched 00:00Z, 3.4 hours before the alert went out and 265 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 00:00Z on 2020-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 924 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 00:00Z on 2020-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
924 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1079 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
-23 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-0.8

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 May 26, 7:51 PM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, May 26, 7:51 PM CDT, 2 hours 33 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>
Hazardous weather outlook, May 26, 5:28 AM CDT, 16 hours 56 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>

In the hours before

Local storm report, May 26, 6:42 PM CDT, 3 hours 42 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
May 26, 8:30 PM CDTFlash Flood WarningLZKJackson, Lawrence118 min
May 26, 9:49 PM CDTRiver Flood AdvisoryLZKConway, Perry13 hr
May 27, 8:06 AM CDTFlash Flood WarningLZKIndependence, Jackson, Lawrence, Woodruff3 hr
May 27, 9:58 AM CDTRiver Flood WarningLZKJackson, Woodruff7 days
May 27, 10:25 AM CDTRiver Flood AdvisoryLZKConway, Perry10 hr
May 27, 10:33 AM CDTRiver Flood AdvisoryLZKIndependence, Jackson10 hr
May 27, 3:10 PM CDTSevere Thunderstorm WarningLZKConway, Perry, Pope, Yell34 min
May 27, 3:30 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Pope, Yell45 min
May 27, 3:43 PM CDTSpecial Weather StatementLZKGarland47 min
May 27, 4:02 PM CDTSpecial Weather StatementLZKJohnson43 min
May 27, 4:12 PM CDTSpecial Weather StatementLZKPope48 min
May 27, 4:26 PM CDTSpecial Weather StatementLZKMarion49 min
May 27, 4:39 PM CDTSpecial Weather StatementLZKConway36 min
May 27, 4:42 PM CDTSpecial Weather StatementLZKBoone63 min
May 27, 4:43 PM CDTSpecial Weather StatementLZKSaline47 min
May 27, 5:47 PM CDTSpecial Weather StatementLZKMarion43 min
May 27, 6:39 PM CDTSpecial Weather StatementLZKMonroe51 min

Nearby

Flash Flood Warnings in Arkansas, 2020Every flash flood warning in 2020

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.