Alert archive / Georgia / Mesoscale Discussions in 2022

Mesoscale Discussion 261

March 16, 202219 counties in Georgia; 13 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Mar 16, 2022, 11:19 AM EDT for 19 counties in Georgia; 13 counties in South Carolina. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Mar 16, 2022, 11:19 AM EDT (15:19 UTC)
Expired: Mar 16, 2022, 1:15 PM EDT
In force: 116 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 40%

All 32 counties

Bryan County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Chatham County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Glynn County, GA, Jefferson County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Richmond County, GA, Screven County, GA, Tattnall County, GA, Toombs County, GA, Wayne County, GA, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC, Orangeburg County, SC

The radar

The Charleston,SC radar (KCLX), 40 km from the middle of the area, began a volume at 15:19 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

Jacksonville, FL (KJAX), launched 12:00Z, 3.3 hours before the alert went out and 212 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: 496 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

Open this sounding in Storm Lab

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
Mar 16, 12:20 PM EDT	Mesoscale Discussion	SPC	Chattahoochee, Clay, Coweta, Crawford, Harris, Heard and 20 more	115 min
Mar 16, 4:55 PM EDT	Mesoscale Discussion	SPC	Appling, Bacon, Ben Hill, Bryan, Bulloch, Candler and 21 more	95 min

Nearby

Mesoscale Discussions in Georgia, 2022 Mesoscale Discussions in South Carolina, 2022 Every mesoscale discussion in 2022

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.