Alert archive / Arkansas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 124, NWS Little Rock, AR

May 9, 20154 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 9, 2015, 4:34 PM CDT for 4 counties in Arkansas. It was in force for 26 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
May 9, 2015, 4:34 PM CDT (21:34 UTC)
Expired
May 9, 2015, 5:00 PM CDT
In force
26 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Clark County, AR, Garland County, AR, Hot Spring County, AR, Montgomery County, AR

The radar

The Little Rock radar (KLZK), 103 km from the middle of the area, began a volume at 21:35 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 9, 2:40 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 9.6 hours before the alert went out and 216 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, Shreveport, LA at 12:00Z on 2015-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1263 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, Shreveport, LA at 12:00Z on 2015-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
1263 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.0

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 May 9, 3:08 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, May 9, 3:08 PM CDT, 1 hour 26 minutes before
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Hazardous weather outlook, May 9, 10:15 AM CDT, 6 hours 19 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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The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 10:47 PM CDTSpecial Weather StatementLZKHot Spring28 min
May 9, 12:05 AM CDTSpecial Weather StatementLZKWhite45 min
May 9, 12:12 AM CDTSevere Thunderstorm WarningLZKCleburne, White33 min
May 9, 12:38 AM CDTSpecial Weather StatementLZKJohnson, Newton, Pope42 min
May 9, 12:43 AM CDTSpecial Weather StatementLZKCleburne47 min
May 9, 1:03 AM CDTSpecial Weather StatementLZKPike47 min
May 9, 1:24 AM CDTSpecial Weather StatementLZKMontgomery, Polk46 min
May 9, 1:59 AM CDTSpecial Weather StatementLZKPike46 min
May 9, 2:13 AM CDTSpecial Weather StatementLZKFulton, Izard, Stone47 min
May 9, 2:27 AM CDTFlash Flood WarningLZKClark, Garland, Hot Spring, Montgomery, Pike2 hr
May 9, 2:55 AM CDTSpecial Weather StatementLZKClark, Dallas, Garland, Hot Spring45 min
May 9, 3:43 AM CDTSpecial Weather StatementLZKCalhoun, Cleveland, Dallas, Grant, Hot Spring, Ouachita and 2 more42 min
May 9, 4:03 AM CDTFlash Flood WatchLZKArkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more53 hr
May 9, 4:27 AM CDTSpecial Weather StatementLZKCleveland, Dallas, Grant, Jefferson, Lincoln, Lonoke and 2 more58 min
May 9, 5:31 AM CDTSpecial Weather StatementLZKArkansas, Desha, Drew, Jefferson, Lincoln, Monroe and 2 more29 min
May 9, 9:07 AM CDTRiver Flood WarningLZKCalhoun, Ouachita33 days
May 9, 9:07 AM CDTRiver Flood WarningLZKBradley, Calhoun, Union44 days
May 9, 1:19 PM CDTFlash Flood WarningLZKLogan, Montgomery, Pike, Polk, Scott4 hr
May 9, 3:27 PM CDTSevere Thunderstorm WarningLZKPike63 min
May 9, 4:47 PM CDTFlash Flood WarningLZKClark, Garland, Hot Spring, Montgomery, Pike, Scott and 1 more3 hr
May 9, 5:37 PM CDTSpecial Weather StatementLZKHot Spring, Saline43 min
May 9, 5:45 PM CDTSpecial Weather StatementLZKFaulkner45 min
May 9, 6:24 PM CDTSevere Thunderstorm WarningLZKDallas, Grant, Hot Spring, Jefferson, Pulaski, Saline51 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2015Every severe thunderstorm warning in 2015

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.