Alert archive / Arkansas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 454, NWS Little Rock, AR

August 21, 2003Newton County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 21, 2003, 1:56 PM CDT for Newton County, Arkansas. It was in force for 44 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 21, 2003, 1:56 PM CDT (18:56 UTC)
Expired: Aug 21, 2003, 2:40 PM CDT
In force: 44 min
Issued by: NWS Little Rock, AR
Area: Counties, with a storm outline in the text

County Newton County, AR

The radar

The Western Arkansas radar (KSRX), 125 km from the middle of the area, began a volume at 18:59 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 12:00Z, 6.9 hours before the alert went out and 121 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: 1352 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1499 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 63 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 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 21, 4:00 AM CDT, 9 hours 56 minutes earlier.

Area forecast discussion, Aug 21, 4:00 AM CDT, 9 hours 56 minutes before

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Hazardous weather outlook, Aug 21, 5:00 AM CDT, 8 hours 56 minutes before

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<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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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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
Aug 20, 7:08 PM CDT	Severe Thunderstorm Warning	LZK	Prairie	47 min
Aug 21, 3:01 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne	39 min
Aug 21, 5:13 PM CDT	Severe Thunderstorm Warning	LZK	Izard, Sharp	42 min
Aug 21, 5:45 PM CDT	Flash Flood Warning	LZK	Izard, Sharp	2 hr

Nearby

Severe Thunderstorm Warnings in Arkansas, 2003 Every severe thunderstorm warning in 2003

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.