Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 409, NWS Little Rock, AR

October 11, 2001Drew County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Oct 11, 2001, 12:03 PM CDT for Drew County, Arkansas. It was in force for 42 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: Oct 11, 2001, 12:03 PM CDT (17:03 UTC)
Expired: Oct 11, 2001, 12:45 PM CDT
In force: 42 min
Issued by: NWS Little Rock, AR
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Drew County, AR

The radar

The Little Rock radar (KLZK), 147 km from the middle of the area, began a volume at 17:07 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 11, 10:00 AM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.1 hours before the alert went out and 208 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: 5 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 653 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Oct 11, 11:10 AM CDT, 53 minutes earlier.

Area forecast discussion, Oct 11, 11:10 AM CDT, 53 minutes before

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In the hours before

Special weather statement, Oct 11, 10:40 AM CDT, 1 hour 23 minutes before

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<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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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 10, 7:09 PM CDT	Severe Thunderstorm Warning	LZK	Izard	41 min
Oct 10, 7:16 PM CDT	Severe Thunderstorm Warning	LZK	Independence	39 min
Oct 10, 7:24 PM CDT	Severe Thunderstorm Warning	LZK	Sharp	46 min
Oct 10, 7:33 PM CDT	Severe Thunderstorm Warning	LZK	Pike	42 min
Oct 10, 7:38 PM CDT	Severe Thunderstorm Warning	LZK	Jefferson	37 min
Oct 10, 7:43 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie	62 min
Oct 10, 8:05 PM CDT	Tornado Warning	LZK	Jefferson	30 min
Oct 10, 9:02 PM CDT	Flash Flood Warning	LZK	Jefferson	88 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2001 Every severe thunderstorm warning in 2001

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.