Alert archive / Georgia / Mesoscale Discussions in 2003
Mesoscale Discussion 689
The Storm Prediction Center issued this mesoscale discussion at May 2, 2003, 5:43 PM EDT for 42 counties in Georgia; McCormick County, South Carolina. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- May 2, 2003, 5:43 PM EDT (21:43 UTC)
- Expired
- May 2, 2003, 7:15 PM EDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 43 counties
Baldwin County, GA, Barrow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Chattahoochee County, GA, Clarke County, GA, Crawford County, GA, Greene County, GA, Gwinnett County, GA, Hancock County, GA, Henry County, GA, Houston County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Lincoln County, GA, Macon County, GA, Marion County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Wilkes County, GA, Wilkinson County, GA, McCormick 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.7 hours before the alert went out and 76 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.
- Mixed-layer CAPE
- 181 J/kg
- Mixed-layer CIN
- -255 J/kg
- Mixed-layer LCL
- 1158 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 2, 2:23 PM EDT | Mesoscale Discussion | SPC | Rabun | 2 hr |
| May 2, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | Banks, Franklin, Habersham, Hall, Hart, Rabun and 1 more | 5 hr |
| May 2, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | Bartow, Carroll, Catoosa, Chattooga, Cherokee, Clayton and 23 more | 5 hr |
| May 2, 4:25 PM EDT | Severe Thunderstorm Watch | SPC | Clay, Quitman, Troup | 4 hr |
| May 2, 4:40 PM EDT | Severe Thunderstorm Watch | SPC | Columbia, Glascock, McDuffie, Richmond | 5 hr |
| May 2, 5:57 PM EDT | Mesoscale Discussion | SPC | Clay | 93 min |
| May 2, 6:05 PM EDT | Tornado Watch | SPC | Heard | 5 hr |
| May 2, 6:25 PM EDT | Severe Thunderstorm Watch | SPC | Baldwin, Barrow, Bartow, Bibb, Bleckley, Butts and 58 more | 6 hr |
| May 2, 6:36 PM EDT | Mesoscale Discussion | SPC | Bartow, Carroll, Catoosa, Chattooga, Cherokee, Clayton and 23 more | 84 min |
| May 2, 7:17 PM EDT | Mesoscale Discussion | SPC | Columbia, Glascock, Richmond | 88 min |
| May 2, 4:22 PM EDT | Mesoscale Discussion | SPC | Berkeley, Calhoun, Chesterfield, Clarendon, Darlington, Dillon and 11 more | 113 min |
| May 2, 7:45 PM EDT | Severe Thunderstorm Watch | SPC | Georgetown, Horry, Marion, Williamsburg | 3 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.