Alert archive / Missouri / Mesoscale Discussions in 2003

Mesoscale Discussion 737

May 4, 2003Wyandotte County, Kansas; 9 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 4, 2003, 4:28 PM CDT for Wyandotte County, Kansas; 9 counties in Missouri. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
May 4, 2003, 4:28 PM CDT (21:28 UTC)
Expired
May 4, 2003, 5:30 PM CDT
In force
62 min
Issued by
the Storm Prediction Center

Counties Wyandotte County, KS, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Jackson County, MO, Lafayette County, MO, Platte County, MO, Ray County, MO

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, 9.5 hours before the alert went out and 119 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 2003-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 409 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, Topeka, KS at 12:00Z on 2003-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 582 square meters per square second.1939587897Sfc1 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
409 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
563 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
582 m²/s²
0-3 km storm-relative helicity
841 m²/s²
Significant tornado parameter
0.0
Supercell composite
17.5

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
May 3, 11:07 PM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Chase, Clark, Clay and 43 more83 min
May 3, 11:46 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Clay and 30 more59 min
May 4, 12:10 AM CDTSevere Thunderstorm WatchSPCAnderson, Atchison, Brown, Chase, Clay, Coffey and 24 more6 hr
May 4, 2:58 AM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Coffey, Doniphan, Douglas and 13 more92 min
May 4, 4:50 AM CDTSevere Thunderstorm WatchSPCDoniphan, Wyandotte6 hr
May 4, 7:43 AM CDTMesoscale DiscussionSPCDoniphan2 hr
May 4, 10:19 AM CDTMesoscale DiscussionSPCAtchison, Butler, Chase, Clay, Coffey, Dickinson and 19 more116 min
May 4, 11:40 AM CDTTornado WatchSPCAnderson, Chase, Clay, Cloud, Coffey, Dickinson and 19 more6 hr
May 4, 11:44 AM CDTMesoscale DiscussionSPCChautauqua, Cherokee, Crawford, Labette, Montgomery, Neosho and 1 more3 hr
May 4, 12:14 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Jackson, Jefferson and 7 more2 hr
May 4, 12:35 PM CDTTornado WatchSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 6 more6 hr
May 4, 12:45 PM CDTTornado WatchSPCAtchison, Brown, Doniphan, Douglas, Jefferson, Johnson and 4 more6 hr
May 4, 2:22 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Coffey, Doniphan, Douglas and 13 more113 min
May 4, 2:58 PM CDTMesoscale DiscussionSPCEllis, Gove, Jewell, Lane, Lincoln, Mitchell and 9 more92 min
May 4, 3:05 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more115 min
May 4, 4:43 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Labette, Linn, Neosho2 hr
May 4, 6:05 PM CDTTornado WatchSPCBourbon, Cherokee, Crawford7 hr
May 4, 6:20 PM CDTTornado WatchSPCDoniphan, Wyandotte6 hr
May 4, 3:56 PM CDTMesoscale DiscussionSPCAdair, Chariton, Grundy, Harrison, Linn, Livingston and 6 more2 hr
May 4, 5:01 PM CDTMesoscale DiscussionSPCButler, Dunklin, Mississippi, New Madrid, Pemiscot, Stoddard3 hr
May 4, 5:20 PM CDTMesoscale DiscussionSPCBarry, Barton, Cedar, Christian, Dade, Dallas and 18 more55 min
May 4, 5:25 PM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Bollinger, Callaway, Cape Girardeau, Clark and 28 more6 hr
May 4, 6:55 PM CDTTornado WatchSPCButler, Dunklin, Mississippi, New Madrid, Pemiscot, Scott and 2 more6 hr

Nearby

Mesoscale Discussions in Missouri, 2003Mesoscale Discussions in Kansas, 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.