Alert archive / Georgia / Mesoscale Discussions in 2007

Mesoscale Discussion 1107

June 12, 2007Lee County, Russell County, Alabama; Gadsden County, Jefferson County, Leon County, Florida; 27 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2007, 5:03 AM CDT for Lee County, Russell County, Alabama; Gadsden County, Jefferson County, Leon County, Florida; 27 counties in Georgia. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued
Jun 12, 2007, 5:03 AM CDT (10:03 UTC)
Expired
Jun 12, 2007, 6:00 AM CDT
In force
57 min
Issued by
the Storm Prediction Center
All 32 counties

Lee County, AL, Russell County, AL, Gadsden County, FL, Jefferson County, FL, Leon County, FL, Baker County, GA, Brooks County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Lee County, GA, Lowndes County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Terrell County, GA, Thomas County, GA, Webster County, GA, Worth County, GA

The watches that followed

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 10.1 hours before the alert went out and 162 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2007-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 235 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2007-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
235 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
2072 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

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.

IssuedProductOfficeCountiesLasted
Jun 12, 11:02 AM CDTMesoscale DiscussionSPCCherokee, Cleburne58 min
Jun 12, 12:36 PM CDTMesoscale DiscussionSPCGeneva, Henry, Houston54 min
Jun 12, 3:02 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bullock, Butler, Chambers, Coffee and 19 more28 min
Jun 12, 3:23 PM CDTSevere Thunderstorm WatchSPCBarbour, Bullock, Butler, Coffee, Conecuh, Covington and 12 more5 hr
Jun 12, 7:25 AM CDTSevere Thunderstorm WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 9 more7 hr
Jun 12, 10:09 AM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Brevard, Charlotte, Citrus and 34 more36 min
Jun 12, 10:30 AM CDTSevere Thunderstorm WatchSPCBrevard, Citrus, DeSoto, Hardee, Hernando, Highlands and 17 more6 hr
Jun 12, 2:16 PM CDTMesoscale DiscussionSPCBrevard, Citrus, DeSoto, Glades, Hardee, Hernando and 18 more59 min
Jun 12, 3:59 PM CDTMesoscale DiscussionSPCBroward, Indian River, Martin, Okeechobee, Palm Beach, Saint Lucie61 min
Jun 12, 1:23 PM CDTSevere Thunderstorm WatchSPCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 80 more8 hr
Jun 12, 3:48 PM CDTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 86 more57 min

Nearby

Mesoscale Discussions in Georgia, 2007Mesoscale Discussions in Florida, 2007Mesoscale Discussions in Alabama, 2007Every mesoscale discussion in 2007

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.