Alert archive / Kentucky / Mesoscale Discussions in 2003

Mesoscale Discussion 2228

August 22, 200325 counties in Kentucky; 21 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Aug 22, 2003, 5:10 PM CDT for 25 counties in Kentucky; 21 counties in Tennessee. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Aug 22, 2003, 5:10 PM CDT (22:10 UTC)
Expired
Aug 22, 2003, 6:45 PM CDT
In force
95 min
Issued by
the Storm Prediction Center
All 46 counties

Adair County, KY, Allen County, KY, Barren County, KY, Butler County, KY, Calloway County, KY, Christian County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Laurel County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCreary County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Pulaski County, KY, Russell County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Wayne County, KY, Whitley County, KY, Cheatham County, TN, Clay County, TN, Davidson County, TN, Dickson County, TN, Fentress County, TN, Henry County, TN, Houston County, TN, Jackson County, TN, Macon County, TN, Montgomery County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Scott County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN

The watches that followed

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

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.2 hours before the alert went out and 74 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, Nashville Metro, TN at 12:00Z on 2003-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2273 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, Nashville Metro, TN at 12:00Z on 2003-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.1939Sfc1 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
2273 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
793 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Aug 22, 10:29 AM CDTMesoscale DiscussionSPCAdair, Anderson, Bath, Boone, Bourbon, Boyd and 72 more2 hr
Aug 22, 1:15 PM CDTSevere Thunderstorm WatchSPCAdair, Allen, Anderson, Barren, Bath, Boone and 59 more6 hr
Aug 22, 3:47 PM CDTMesoscale DiscussionSPCAnderson, Bath, Bourbon, Boyle, Bracken, Bullitt and 40 more88 min
Aug 22, 5:35 PM CDTSevere Thunderstorm WatchSPCAnderson, Campbell, Cannon, Cheatham, Clay, Cumberland and 28 more5 hr

Nearby

Mesoscale Discussions in Kentucky, 2003Mesoscale Discussions in Tennessee, 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.