Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 32, NWS Little Rock, AR

May 9, 20096 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at May 9, 2009, 3:06 AM CDT for 6 counties in Arkansas. It was in force for 3 hr. 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, 2009, 3:06 AM CDT (08:06 UTC)
Expired: May 9, 2009, 6:00 AM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Cleburne County, AR, Faulkner County, AR, Independence County, AR, Jackson County, AR, Van Buren County, AR, White County, AR

The radar

The Little Rock radar (KLZK), 78 km from the middle of the area, began a volume at 08:05 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 00:00Z, 8.1 hours before the alert went out and 191 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: 2269 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 245 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 10.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at May 9, 12:58 AM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, May 9, 12:58 AM CDT, 2 hours 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, May 8, 9:20 PM CDT, 5 hours 46 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

Local storm report, May 9, 1:41 AM 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>

Local storm report, May 9, 2:04 AM CDT, 1 hour 2 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
May 8, 10:35 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Fulton	55 min
May 8, 11:19 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion	41 min
May 8, 11:31 PM CDT	Severe Thunderstorm Warning	LZK	Fulton	29 min
May 8, 11:58 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	47 min
May 9, 12:18 AM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Pope, Scott, Yell	57 min
May 9, 12:22 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Fulton, Izard, Marion, Stone	53 min
May 9, 1:12 AM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Pope, Yell	63 min
May 9, 1:25 AM CDT	Severe Thunderstorm Warning	LZK	Logan, Scott, Yell	50 min
May 9, 1:27 AM CDT	Severe Thunderstorm Warning	LZK	Scott	63 min
May 9, 2:08 AM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Garland, Perry, Pope, Saline and 2 more	52 min
May 9, 2:39 AM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Faulkner, Lonoke, Pulaski, Van Buren, White	51 min
May 9, 3:11 AM CDT	Severe Thunderstorm Warning	LZK	Jackson, Lonoke, Prairie, White, Woodruff	64 min
May 9, 3:24 AM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, Pulaski	51 min
May 9, 3:32 AM CDT	Severe Thunderstorm Warning	LZK	Clark, Dallas	43 min
May 9, 4:06 AM CDT	Severe Thunderstorm Warning	LZK	Monroe, Prairie	39 min
May 9, 4:15 AM CDT	Severe Thunderstorm Warning	LZK	Woodruff	15 min
May 9, 4:19 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson	41 min
May 9, 4:33 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Monroe, Prairie	42 min
May 9, 7:47 AM CDT	Areal Flood Warning	LZK	Fulton, Sharp	6 hr
May 9, 7:49 AM CDT	Areal Flood Warning	LZK	Fulton, Sharp	6 hr
May 9, 12:54 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Hot Spring	30 min
May 9, 1:47 PM CDT	Severe Thunderstorm Warning	LZK	Grant, Jefferson, Lonoke, Pulaski, Saline	43 min
May 9, 1:55 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike	25 min
May 9, 2:15 PM CDT	Flash Flood Warning	LZK	Grant, Hot Spring	3 hr
May 9, 2:26 PM CDT	Flash Flood Warning	LZK	Garland	3 hr
May 9, 3:03 PM CDT	Flash Flood Warning	LZK	Arkansas, Grant, Jefferson, Lonoke, Monroe, Prairie and 2 more	3 hr

Nearby

Flash Flood Warnings in Arkansas, 2009 Every flash flood warning in 2009

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.