Alert archive / Arkansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 149, NWS Little Rock, AR

June 1, 20184 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jun 1, 2018, 12:54 AM CDT for 4 counties in Arkansas. It was in force for 51 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
Jun 1, 2018, 12:54 AM CDT (05:54 UTC)
Expired
Jun 1, 2018, 1:45 AM CDT
In force
51 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Newton County, AR, Pope County, AR, Searcy County, AR, Van Buren County, AR

The radar

The Little Rock radar (KLZK), 112 km from the middle of the area, began a volume at 05:58 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.

IssuedProductOfficeLasted
May 31, 7:56 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.9 hours before the alert went out and 156 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, Springfield, MO at 00:00Z on 2018-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2032 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, Springfield, MO at 00:00Z on 2018-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.193958Sfc1 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
2032 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1085 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.9
Supercell composite
7.3

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 Jun 1, 12:35 AM CDT, 19 minutes earlier.

Area forecast discussion, Jun 1, 12:35 AM CDT, 19 minutes before
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Hazardous weather outlook, May 31, 11:35 PM CDT, 1 hour 19 minutes before
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In the hours before

Local storm report, May 31, 10:08 PM CDT, 2 hours 46 minutes before
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    <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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      <p id="message2">
        Please try again in a few minutes.
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Local storm report, May 31, 10:10 PM CDT, 2 hours 44 minutes before
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<html lang="en">
<head>
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  <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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Local storm report, May 31, 10:16 PM CDT, 2 hours 38 minutes before
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<head>
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  <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>
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</body>
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The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 8:32 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton43 min
May 31, 9:14 PM CDTSevere Thunderstorm WarningLZKFulton, Sharp46 min
May 31, 9:33 PM CDTTornado WarningLZKFulton, Sharp27 min
May 31, 9:56 PM CDTSevere Thunderstorm WarningLZKFulton, Sharp34 min
May 31, 10:13 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton, Izard32 min
May 31, 10:43 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton, Izard, Sharp, Stone47 min
May 31, 11:22 PM CDTSevere Thunderstorm WarningLZKBaxter, Izard, Marion, Stone38 min
May 31, 11:26 PM CDTSevere Thunderstorm WarningLZKNewton, Searcy49 min
Jun 1, 12:14 AM CDTSevere Thunderstorm WarningLZKNewton, Pope, Searcy, Van Buren31 min
Jun 1, 12:41 AM CDTFlash Flood WarningLZKNewton, Searcy3 hr
Jun 1, 1:06 AM CDTSevere Thunderstorm WarningLZKIndependence, Izard, Sharp, Stone39 min
Jun 1, 3:56 AM CDTFlash Flood WarningLZKBaxter, Izard, Marion, Searcy, Stone3 hr
Jun 1, 5:25 AM CDTFlash Flood WarningLZKCleburne, Independence, Stone, Van Buren, White3 hr
Jun 1, 8:43 AM CDTFlash Flood WarningLZKSearcy, Van Buren3 hr
Jun 1, 3:13 PM CDTSpecial Weather StatementLZKPrairie32 min
Jun 1, 5:04 PM CDTSpecial Weather StatementLZKArkansas26 min
Jun 1, 6:05 PM CDTSpecial Weather StatementLZKPrairie40 min
Jun 1, 6:09 PM CDTSpecial Weather StatementLZKDesha36 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2018Every severe thunderstorm warning in 2018

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.