Alert archive / Georgia / Mesoscale Discussions in 2023
Mesoscale Discussion 2002
The Storm Prediction Center issued this mesoscale discussion at Aug 15, 2023, 3:27 PM CDT for Lee County, Macon County, Russell County, Alabama; 40 counties in Georgia. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Aug 15, 2023, 3:27 PM CDT (20:27 UTC)
- Expired
- Aug 15, 2023, 5:00 PM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
All 43 counties
Lee County, AL, Macon County, AL, Russell County, AL, Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Chattahoochee County, GA, Crawford County, GA, Dooly County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Harris County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Macon County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Twiggs County, GA, Upson County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wilkinson County, GA
The radar
The Atlanta radar (KFFC), 82 km from the middle of the area, began a volume at 20:28 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 80 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
- 1677 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 831 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted.
<!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 |
|---|---|---|---|---|
| Aug 14, 7:33 PM CDT | Severe Thunderstorm Watch | SPC | Colbert, DeKalb, Franklin, Jackson, Lauderdale, Lawrence and 4 more | 6 hr |
| Aug 15, 12:50 PM CDT | Mesoscale Discussion | SPC | Chambers, Randolph | 85 min |
| Aug 15, 4:51 PM CDT | Mesoscale Discussion | SPC | Dale, Geneva, Henry, Houston | 114 min |
| Aug 14, 11:01 PM CDT | Mesoscale Discussion | SPC | Catoosa, Dade | 119 min |
Nearby
Mesoscale Discussions in Georgia, 2023Mesoscale Discussions in Alabama, 2023Every mesoscale discussion in 2023
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.