Alert archive / Arkansas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 307, NWS Little Rock, AR

July 24, 2015Baxter County, Marion County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 24, 2015, 9:00 PM CDT for Baxter County, Marion County, Arkansas. It was in force for 45 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: Jul 24, 2015, 9:00 PM CDT (02:00 UTC)
Expired: Jul 24, 2015, 9:45 PM CDT
In force: 45 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Baxter County, AR, Marion County, AR

The radar

The Springfield radar (KSGF), 133 km from the middle of the area, began a volume at 02:01 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, 2.0 hours before the alert went out and 134 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: 2744 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 1466 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 7.2

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 Jul 24, 6:30 PM CDT, 2 hours 30 minutes earlier.

Area forecast discussion, Jul 24, 6:30 PM CDT, 2 hours 30 minutes before

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Hazardous weather outlook, Jul 24, 5:00 AM CDT, 16 hours before

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</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.
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        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
Jul 24, 9:17 PM CDT	Severe Thunderstorm Warning	LZK	Marion	28 min
Jul 24, 9:37 PM CDT	Special Weather Statement	LZK	Monroe	23 min
Jul 24, 9:45 PM CDT	Special Weather Statement	LZK	Baxter, Marion	45 min
Jul 24, 9:51 PM CDT	Special Weather Statement	LZK	Boone	24 min
Jul 24, 9:57 PM CDT	Special Weather Statement	LZK	Prairie	33 min
Jul 24, 9:59 PM CDT	Special Weather Statement	LZK	Boone	31 min
Jul 24, 10:07 PM CDT	Special Weather Statement	LZK	Boone, Marion	23 min
Jul 24, 10:19 PM CDT	Special Weather Statement	LZK	Stone	41 min
Jul 24, 10:23 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion, Searcy, Stone	52 min
Jul 24, 10:30 PM CDT	Special Weather Statement	LZK	Marion, Searcy	30 min
Jul 24, 10:48 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Searcy, Stone, Van Buren	42 min
Jul 24, 11:34 PM CDT	Special Weather Statement	LZK	Van Buren	26 min
Jul 25, 12:25 AM CDT	Special Weather Statement	LZK	Faulkner	35 min
Jul 25, 10:37 AM CDT	Special Weather Statement	LZK	Dallas	23 min
Jul 25, 1:43 PM CDT	Special Weather Statement	LZK	Hot Spring	32 min
Jul 25, 2:19 PM CDT	Special Weather Statement	LZK	Montgomery	26 min
Jul 25, 2:32 PM CDT	Special Weather Statement	LZK	Pike	28 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2015 Every 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.