Alert archive / Arkansas / Heavy Snow Warnings in 2008

Heavy Snow Warning 2, NWS Memphis, TN

March 4, 2008Lawrence County, Randolph County, Arkansas

NWS Memphis, TN issued this heavy snow warning at Mar 4, 2008, 10:43 AM CST for Lawrence County, Randolph County, 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: Mar 4, 2008, 10:43 AM CST (16:43 UTC)
Expired: Mar 4, 2008, 2:10 PM CST
In force: 3 hr
Issued by: NWS Memphis, TN

Counties Lawrence County, AR, Randolph County, AR

The radar

The Memphis radar (KNQA), 143 km from the middle of the area, began a volume at 16:43 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

Nashville Metro, TN (KBNA), launched 12:00Z, 4.7 hours before the alert went out and 401 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: 191 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 674 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 521 m²/s²
0-3 km storm-relative helicity: 382 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heavy snow warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this heavy snow warning went out at Mar 4, 9:40 AM CST, 1 hour 3 minutes earlier.

Area forecast discussion, Mar 4, 9:40 AM CST, 1 hour 3 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, Mar 4, 9:12 AM CST, 1 hour 31 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, Mar 4, 7:53 AM CST, 2 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, Mar 4, 8:31 AM CST, 2 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>

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 3, 6:08 PM CST	Severe Thunderstorm Warning	MEG	Panola, Quitman	38 min
Mar 3, 6:31 PM CST	Severe Thunderstorm Warning	MEG	Benton	44 min
Mar 3, 7:03 PM CST	Flash Flood Warning	MEG	Benton, Lafayette, Marshall, Panola	117 min
Mar 3, 7:15 PM CST	Severe Thunderstorm Warning	MEG	Benton, Lafayette, Marshall, Union	45 min
Mar 3, 10:20 PM CST	River Flood Warning	MEG	Obion, Weakley	14 hr
Mar 3, 10:20 PM CST	River Flood Warning	MEG	Dyer, Gibson, Obion	7 days
Mar 3, 10:23 PM CST	River Flood Warning	MEG	Dyer	14 hr
Mar 3, 10:26 PM CST	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	9 days
Mar 4, 12:42 PM CST	River Flood Warning	MEG	Madison	4 days
Mar 3, 9:11 PM CST	Winter Weather Advisory	MEG	Clay, Craighead, Greene, Lawrence, Mississippi, Poinsett and 1 more	7 hr
Mar 3, 10:11 PM CST	River Flood Warning	MEG	Craighead	14 hr
Mar 4, 4:18 AM CST	Snow Advisory	MEG	Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 5 more	10 hr

Nearby

Heavy Snow Warnings in Arkansas, 2008 Every heavy snow warning in 2008

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.