Alert archive / Arkansas / Flash Flood Warnings in 2020

Flash Flood Warning 51, NWS Little Rock, AR

July 4, 20207 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 4, 2020, 1:23 PM CDT for 7 counties in Arkansas. It was in force for 102 min. 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 4, 2020, 1:23 PM CDT (18:23 UTC)
Expired: Jul 4, 2020, 3:05 PM CDT
In force: 102 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Cleburne County, AR, Independence County, AR, Jackson County, AR, Lonoke County, AR, Prairie County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 77 km from the middle of the area, began a volume at 18:23 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

Jackson, MS (KJAN), launched 12:00Z, 6.4 hours before the alert went out and 357 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: 834 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 717 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 23 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 3, 6:24 PM CDT, 18 hours 59 minutes earlier.

Area forecast discussion, Jul 3, 6:24 PM CDT, 18 hours 59 minutes before

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Hazardous weather outlook, Jul 3, 2:16 PM CDT, 23 hours 7 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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  <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.

Issued	Product	Office	Counties	Lasted
Jul 3, 7:27 PM CDT	Special Weather Statement	LZK	Garland	48 min
Jul 3, 7:37 PM CDT	Special Weather Statement	LZK	Garland	53 min
Jul 4, 11:22 AM CDT	Special Weather Statement	LZK	Hot Spring	38 min
Jul 4, 12:15 PM CDT	Special Weather Statement	LZK	Prairie	30 min
Jul 4, 12:20 PM CDT	Special Weather Statement	LZK	Arkansas	25 min
Jul 4, 12:46 PM CDT	Special Weather Statement	LZK	Pulaski	29 min
Jul 4, 12:59 PM CDT	Special Weather Statement	LZK	White	31 min
Jul 4, 1:18 PM CDT	Special Weather Statement	LZK	Cleburne	42 min
Jul 4, 1:41 PM CDT	Special Weather Statement	LZK	Pike	34 min
Jul 4, 2:24 PM CDT	Special Weather Statement	LZK	Desha	36 min
Jul 4, 2:41 PM CDT	Special Weather Statement	LZK	Stone	49 min
Jul 4, 2:54 PM CDT	Special Weather Statement	LZK	Ouachita	51 min
Jul 4, 3:01 PM CDT	Special Weather Statement	LZK	Desha	44 min
Jul 4, 3:04 PM CDT	Special Weather Statement	LZK	Izard	41 min
Jul 4, 3:09 PM CDT	Special Weather Statement	LZK	Van Buren	51 min
Jul 4, 3:11 PM CDT	Severe Thunderstorm Warning	LZK	Desha	21 min
Jul 4, 3:22 PM CDT	Special Weather Statement	LZK	Dallas	53 min
Jul 4, 3:24 PM CDT	Special Weather Statement	LZK	Baxter	51 min
Jul 4, 3:34 PM CDT	Special Weather Statement	LZK	Desha	41 min
Jul 4, 3:37 PM CDT	Special Weather Statement	LZK	Baxter	23 min
Jul 4, 3:42 PM CDT	Severe Thunderstorm Warning	LZK	Pope, Van Buren	14 min
Jul 4, 3:52 PM CDT	Special Weather Statement	LZK	Lincoln	38 min
Jul 4, 4:06 PM CDT	Special Weather Statement	LZK	Drew	39 min
Jul 4, 4:42 PM CDT	Special Weather Statement	LZK	Marion	48 min
Jul 4, 4:50 PM CDT	Special Weather Statement	LZK	Drew	40 min
Jul 4, 5:18 PM CDT	Special Weather Statement	LZK	Boone	42 min
Jul 4, 5:41 PM CDT	Special Weather Statement	LZK	Newton	34 min

Nearby

Flash Flood Warnings in Arkansas, 2020 Every 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.