Alert archive / Arkansas / Lake Wind Advisories in 2011

Lake Wind Advisory 13, NWS Little Rock, AR

April 11, 201134 counties in Arkansas

NWS Little Rock, AR issued this lake wind advisory at Apr 11, 2011, 3:43 PM CDT for 34 counties in Arkansas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Apr 11, 2011, 3:43 PM CDT (20:43 UTC)
Expired: Apr 11, 2011, 7:58 PM CDT
In force: 4 hr
Issued by: NWS Little Rock, AR

All 34 counties

Arkansas County, AR, Baxter County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lincoln County, AR, Lonoke County, AR, Marion County, AR, Monroe County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Sharp County, AR, Stone County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 10 km from the middle of the area, began a volume at 20:46 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

Little Rock, AR (KLZK), launched 12:00Z, 8.7 hours before the alert went out and 202 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: 936 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 647 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 322 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 6.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind advisory 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 lake wind advisory went out at Apr 11, 2:35 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Apr 11, 2:35 PM CDT, 1 hour 8 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Apr 11, 1:55 PM CDT, 1 hour 48 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Apr 11, 10:13 AM CDT, 5 hours 30 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Apr 11, 10:59 AM CDT, 4 hours 44 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Special weather statement, Apr 11, 11:17 AM CDT, 4 hours 26 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Apr 11, 11:53 AM CDT, 3 hours 50 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Apr 11, 12:31 PM CDT, 3 hours 12 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Apr 11, 2:18 PM CDT, 1 hour 25 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 11:57 PM CDT	Special Weather Statement	LZK	Boone	13 min
Apr 11, 12:13 AM CDT	Severe Thunderstorm Warning	LZK	Boone	17 min
Apr 11, 1:42 AM CDT	Severe Thunderstorm Warning	LZK	Boone, Johnson, Marion, Newton	35 min
Apr 11, 4:11 AM CDT	Special Weather Statement	LZK	Montgomery, Polk	44 min
Apr 11, 4:42 AM CDT	Special Weather Statement	LZK	Montgomery, Pike	28 min
Apr 11, 5:06 AM CDT	Special Weather Statement	LZK	Clark, Garland, Hot Spring, Montgomery, Perry, Pike	44 min
Apr 11, 5:29 AM CDT	Special Weather Statement	LZK	Garland, Perry	31 min
Apr 11, 5:39 AM CDT	Special Weather Statement	LZK	Cleburne, Independence	46 min
Apr 11, 5:59 AM CDT	Special Weather Statement	LZK	Conway, Faulkner, Lonoke, Pulaski, Saline, White	46 min
Apr 11, 6:30 AM CDT	Special Weather Statement	LZK	Independence, Jackson	45 min
Apr 11, 6:33 AM CDT	Special Weather Statement	LZK	Lonoke, Prairie, Pulaski, Woodruff	42 min
Apr 11, 7:14 AM CDT	Special Weather Statement	LZK	Woodruff	31 min
Apr 11, 7:26 AM CDT	Special Weather Statement	LZK	Dallas, Ouachita	29 min
Apr 11, 8:03 AM CDT	Special Weather Statement	LZK	Cleveland, Jefferson	47 min
Apr 11, 8:50 AM CDT	Special Weather Statement	LZK	Arkansas, Monroe	30 min
Apr 11, 9:40 AM CDT	Special Weather Statement	LZK	Dallas, Grant	30 min
Apr 11, 10:11 AM CDT	Special Weather Statement	LZK	Lonoke	29 min
Apr 11, 10:13 AM CDT	Special Weather Statement	LZK	Dallas	32 min
Apr 11, 10:22 AM CDT	Severe Thunderstorm Warning	LZK	Jefferson, Lonoke, Prairie, Pulaski, Saline	23 min
Apr 11, 10:35 AM CDT	Severe Thunderstorm Warning	LZK	Grant, Jefferson, Lonoke, Pulaski	25 min
Apr 11, 11:17 AM CDT	Special Weather Statement	LZK	Monroe, Prairie	48 min
Apr 11, 11:32 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Monroe, Prairie, Woodruff	31 min

Nearby

Lake Wind Advisories in Arkansas, 2011 Every lake wind advisory in 2011

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.