Alert archive / Alabama / Mesoscale Discussions in 2006

Mesoscale Discussion 823

May 10, 200636 counties in Alabama; Kemper County, Lauderdale County, Noxubee County, Mississippi

The Storm Prediction Center issued this mesoscale discussion at May 10, 2006, 5:47 AM CDT for 36 counties in Alabama; Kemper County, Lauderdale County, Noxubee County, Mississippi. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: May 10, 2006, 5:47 AM CDT (10:47 UTC)
Expired: May 10, 2006, 7:15 AM CDT
In force: 88 min
Issued by: the Storm Prediction Center

All 39 counties

Autauga County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Butler County, AL, Chilton County, AL, Choctaw County, AL, Clay County, AL, Coffee County, AL, Conecuh County, AL, Coosa County, AL, Crenshaw County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Henry County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Shelby County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Wilcox County, AL, Kemper County, MS, Lauderdale County, MS, Noxubee County, MS

The radar

The Birmingham radar (KBMX), 71 km from the middle of the area, began a volume at 10:49 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 329May 10, 6:35 AM CDT

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 10.8 hours before the alert went out and 72 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: 274 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 144 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 9, 9:54 PM CDT	Mesoscale Discussion	SPC	Baldwin, Barbour, Butler, Clarke, Coffee, Conecuh and 13 more	2 hr
May 10, 2:05 AM CDT	Mesoscale Discussion	SPC	Colbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 3 more	55 min
May 10, 2:24 AM CDT	Severe Thunderstorm Watch	SPC	Colbert, Fayette, Franklin, Greene, Hale, Lamar and 5 more	5 hr
May 10, 4:01 AM CDT	Mesoscale Discussion	SPC	Fayette, Greene, Hale, Lamar, Pickens, Sumter and 1 more	89 min
May 10, 6:32 AM CDT	Severe Thunderstorm Watch	SPC	Autauga, Barbour, Bibb, Bullock, Butler, Chambers and 25 more	6 hr
May 10, 8:31 AM CDT	Mesoscale Discussion	SPC	Fayette, Greene, Lamar, Pickens, Tuscaloosa	89 min
May 10, 9:48 AM CDT	Severe Thunderstorm Watch	SPC	Colbert, Cullman, Fayette, Franklin, Greene, Hale and 12 more	5 hr
May 10, 12:21 PM CDT	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 18 more	84 min
May 10, 12:31 PM CDT	Severe Thunderstorm Watch	SPC	Autauga, Bibb, Blount, Bullock, Calhoun, Chambers and 18 more	5 hr
May 10, 12:42 PM CDT	Mesoscale Discussion	SPC	Barbour, Butler, Choctaw, Clarke, Coffee, Conecuh and 11 more	93 min
May 10, 1:45 PM CDT	Tornado Watch	SPC	Autauga, Baldwin, Barbour, Bullock, Butler, Choctaw and 26 more	7 hr
May 10, 2:42 PM CDT	Mesoscale Discussion	SPC	Choctaw, Clarke, Marengo, Sumter, Washington, Wilcox	2 hr
May 10, 3:23 PM CDT	Mesoscale Discussion	SPC	Barbour, Chambers, Lee, Macon, Russell	2 hr
May 10, 12:41 AM CDT	Severe Thunderstorm Watch	SPC	Benton, Bolivar, Carroll, Coahoma, DeSoto, Grenada and 13 more	7 hr
May 10, 6:27 AM CDT	Mesoscale Discussion	SPC	Bolivar, Coahoma, DeSoto, Leflore, Panola, Quitman and 5 more	93 min
May 10, 10:57 AM CDT	Mesoscale Discussion	SPC	Attala, Claiborne, Copiah, Covington, Franklin, Hinds and 19 more	2 hr
May 10, 11:09 AM CDT	Severe Thunderstorm Watch	SPC	Bolivar, Coahoma, Humphreys, Leflore, Quitman, Sharkey and 3 more	3 hr
May 10, 12:03 PM CDT	Tornado Watch	SPC	Adams, Claiborne, Clarke, Copiah, Covington, Franklin and 21 more	9 hr
May 10, 6:05 PM CDT	Mesoscale Discussion	SPC	Amite, Pike, Walthall, Wilkinson	85 min

Nearby

Mesoscale Discussions in Alabama, 2006 Mesoscale Discussions in Mississippi, 2006 Every mesoscale discussion in 2006

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.