Alert archive / Georgia / Mesoscale Discussions in 2003

Mesoscale Discussion 295

March 19, 200321 counties in Georgia; 5 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2003, 7:04 PM EST for 21 counties in Georgia; 5 counties in South Carolina. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Mar 19, 2003, 7:04 PM EST (00:04 UTC)
Expired
Mar 19, 2003, 9:00 PM EST
In force
116 min
Issued by
the Storm Prediction Center
All 26 counties

Appling County, GA, Bacon County, GA, Brantley County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Pierce County, GA, Screven County, GA, Tattnall County, GA, Toombs County, GA, Wayne County, GA, Allendale County, SC, Beaufort County, SC, Colleton County, SC, Hampton County, SC, Jasper County, SC

The watches that followed

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 00:00Z, 0.1 hours before the alert went out and 161 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, Jacksonville, FL at 00:00Z on 2003-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1922 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, Jacksonville, FL at 00:00Z on 2003-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939587897Sfc1 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
1922 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.0

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
Mar 19, 7:15 PM ESTTornado WatchSPCAppling, Bacon, Bryan, Bulloch, Candler, Chatham and 11 more4 hr
Mar 19, 8:58 PM ESTMesoscale DiscussionSPCBurke, Columbia, Glascock, Jefferson, Jenkins, Lincoln and 6 more3 hr
Mar 19, 9:41 PM ESTMesoscale DiscussionSPCClay, Early3 hr
Mar 19, 10:25 PM ESTTornado WatchSPCBaker, Baldwin, Bibb, Calhoun, Chattahoochee, Clay and 30 more6 hr
Mar 19, 11:16 PM ESTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bartow, Butts, Carroll and 50 more2 hr
Mar 20, 12:20 AM ESTSevere Thunderstorm WatchSPCBanks, Barrow, Butts, Clarke, Clayton, Cobb and 38 more4 hr
Mar 20, 12:52 AM ESTMesoscale DiscussionSPCAtkinson, Bacon, Baker, Ben Hill, Berrien, Bibb and 52 more2 hr
Mar 20, 3:06 AM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 46 more54 min
Mar 20, 3:40 AM ESTTornado WatchSPCAppling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 50 more5 hr
Mar 20, 6:12 AM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brooks and 40 more2 hr
Mar 20, 8:40 AM ESTTornado WatchSPCAppling, Atkinson, Bacon, Berrien, Brantley, Brooks and 20 more6 hr
Mar 20, 11:09 AM ESTMesoscale DiscussionSPCAtkinson, Berrien, Brantley, Brooks, Clinch, Colquitt and 6 more2 hr
Mar 20, 1:33 PM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Berrien, Brantley, Brooks and 10 more117 min
Mar 20, 2:35 PM ESTTornado WatchSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 34 more6 hr
Mar 20, 4:21 PM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 36 more114 min
Mar 20, 6:57 PM ESTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 37 more2 hr
Mar 20, 2:16 AM ESTMesoscale DiscussionSPCGeorgetown, Horry, Marion, Williamsburg119 min
Mar 20, 5:48 AM ESTMesoscale DiscussionSPCCalhoun, Clarendon, Darlington, Dillon, Florence, Horry and 5 more117 min
Mar 20, 10:10 AM ESTTornado WatchSPCGeorgetown, Horry5 hr
Mar 20, 10:40 AM ESTMesoscale DiscussionSPCHorry2 hr

Nearby

Mesoscale Discussions in Georgia, 2003Mesoscale Discussions in South Carolina, 2003Every mesoscale discussion in 2003

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.