Alert archive / Kansas / Mesoscale Discussions in 2006

Mesoscale Discussion 641

April 24, 200632 counties in Kansas; 6 counties in Missouri; Pawnee County, Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2006, 3:18 PM CDT for 32 counties in Kansas; 6 counties in Missouri; Pawnee County, Nebraska. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Apr 24, 2006, 3:18 PM CDT (20:18 UTC)
Expired
Apr 24, 2006, 5:15 PM CDT
In force
117 min
Issued by
the Storm Prediction Center
All 39 counties

Anderson County, KS, Atchison County, KS, Brown County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, Miami County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Riley County, KS, Saline County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Bates County, MO, Buchanan County, MO, Cass County, MO, Clay County, MO, Jackson County, MO, Platte County, MO, Pawnee County, NE

The radar

The Topeka radar (KTWX), 16 km from the middle of the area, began a volume at 20:19 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 watches that followed

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

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.3 hours before the alert went out and 66 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, Topeka, KS at 12:00Z on 2006-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 12:00Z on 2006-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 166 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1223 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
166 m²/s²
0-3 km storm-relative helicity
148 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
Apr 23, 7:58 PM CDTMesoscale DiscussionSPCAnderson, Coffey, Dickinson, Franklin, Geary, Lincoln and 8 more92 min
Apr 23, 9:26 PM CDTMesoscale DiscussionSPCAnderson, Coffey, Dickinson, Franklin, Geary, Lincoln and 8 more64 min
Apr 23, 9:47 PM CDTMesoscale DiscussionSPCAnderson, Coffey, Dickinson, Franklin, Geary, Lincoln and 8 more88 min
Apr 23, 10:10 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Rawlins, Sheridan, Thomas95 min
Apr 23, 10:35 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Graham, Logan, Norton and 5 more4 hr
Apr 24, 1:27 AM CDTMesoscale DiscussionSPCAllen, Barber, Butler, Chase, Chautauqua, Cowley and 16 more2 hr
Apr 24, 2:05 AM CDTMesoscale DiscussionSPCCheyenne, Decatur, Graham, Logan, Norton, Rawlins and 4 more85 min
Apr 24, 7:32 AM CDTMesoscale DiscussionSPCAllen, Butler, Chautauqua, Cowley, Elk, Greenwood and 5 more88 min
Apr 24, 7:49 AM CDTSevere Thunderstorm WatchSPCAllen, Butler, Chautauqua, Cowley, Elk, Greenwood and 5 more5 hr
Apr 24, 1:13 PM CDTMesoscale DiscussionSPCBarber, Comanche2 hr
Apr 24, 1:36 PM CDTTornado WatchSPCBarber, Butler, Comanche, Cowley, Harper, Harvey and 9 more7 hr
Apr 24, 5:30 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Chase, Chautauqua, Cherokee and 19 more7 hr
Apr 24, 6:17 PM CDTMesoscale DiscussionSPCButler, Cowley, Harper, Harvey, Kingman, Sedgwick and 1 more88 min
Apr 24, 12:32 PM CDTSevere Thunderstorm WatchSPCBarry, McDonald, Newton, Stone5 hr

Nearby

Mesoscale Discussions in Kansas, 2006Mesoscale Discussions in Missouri, 2006Mesoscale Discussions in Nebraska, 2006Every mesoscale discussion in 2006

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.