Alert archive / Arkansas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 372, NWS Little Rock, AR

August 9, 2013Conway County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 9, 2013, 7:37 PM CDT for Conway County, Arkansas. It was in force for 23 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: Aug 9, 2013, 7:37 PM CDT (00:37 UTC)
Expired: Aug 9, 2013, 8:00 PM CDT
In force: 23 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

County Conway County, AR

The radar

The Little Rock radar (KLZK), 62 km from the middle of the area, began a volume at 00:36 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 00:00Z, 0.6 hours before the alert went out and 207 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: 114 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 736 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 9, 6:46 PM CDT, 51 minutes earlier.

Area forecast discussion, Aug 9, 6:46 PM CDT, 51 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, Aug 9, 1:15 PM CDT, 6 hours 22 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

Special weather statement, Aug 9, 2:49 PM CDT, 4 hours 48 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>

Special weather statement, Aug 9, 4:01 PM CDT, 3 hours 36 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>

Local storm report, Aug 9, 4:53 PM CDT, 2 hours 44 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>

Special weather statement, Aug 9, 6:15 PM CDT, 1 hour 22 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.

Issued	Product	Office	Counties	Lasted
Aug 9, 7:54 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Van Buren	51 min
Aug 9, 7:58 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Van Buren	32 min
Aug 10, 2:34 AM CDT	Special Weather Statement	LZK	Newton	46 min
Aug 10, 3:30 AM CDT	Flash Flood Warning	LZK	Baxter, Boone, Marion, Newton, Searcy	4 hr
Aug 10, 3:41 AM CDT	Flash Flood Warning	LZK	Baxter, Fulton, Independence, Izard, Marion, Searcy and 2 more	4 hr
Aug 10, 5:43 AM CDT	Flash Flood Warning	LZK	Johnson, Newton, Pope, Searcy	107 min
Aug 10, 7:20 AM CDT	Flash Flood Warning	LZK	Baxter, Cleburne, Fulton, Independence, Izard, Jackson and 6 more	3 hr
Aug 10, 7:26 AM CDT	Flash Flood Warning	LZK	Baxter, Boone, Johnson, Marion, Newton, Pope and 2 more	3 hr
Aug 10, 10:36 AM CDT	River Flood Warning	LZK	White, Woodruff	12 days
Aug 10, 12:49 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland	26 min
Aug 10, 1:13 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland, Lincoln	32 min
Aug 10, 3:23 PM CDT	Special Weather Statement	LZK	Drew	47 min
Aug 10, 4:34 PM CDT	Special Weather Statement	LZK	Montgomery	46 min
Aug 10, 4:55 PM CDT	Special Weather Statement	LZK	Yell	30 min
Aug 10, 5:18 PM CDT	Special Weather Statement	LZK	Perry	27 min
Aug 10, 5:32 PM CDT	Special Weather Statement	LZK	Garland	28 min
Aug 10, 5:37 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Perry, Yell	38 min
Aug 10, 5:44 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Saline	46 min
Aug 10, 5:53 PM CDT	Special Weather Statement	LZK	Yell	27 min
Aug 10, 6:02 PM CDT	Special Weather Statement	LZK	Garland	33 min
Aug 10, 6:03 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Hot Spring	42 min
Aug 10, 6:27 PM CDT	Special Weather Statement	LZK	Saline	28 min
Aug 10, 6:37 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Hot Spring	23 min
Aug 10, 6:53 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Hot Spring	37 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2013 Every severe thunderstorm warning in 2013

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.