Alert archive / Nebraska / Mesoscale Discussions in 2004

Mesoscale Discussion 715

May 16, 20046 states

The Storm Prediction Center issued this mesoscale discussion at May 16, 2004, 9:26 PM CDT for 6 states. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 16, 2004, 9:26 PM CDT (02:26 UTC)
Expired: May 17, 2004, 12:00 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 108 counties

Adams County, IA, Audubon County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Lyon County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, O'Brien County, IA, Osceola County, IA, Page County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Pottawattamie County, IA, Sac County, IA, Shelby County, IA, Sioux County, IA, Webster County, IA, Woodbury County, IA, Brown County, KS, Jackson County, KS, Jewell County, KS, Marshall County, KS, Nemaha County, KS, Osborne County, KS, Pottawatomie County, KS, Republic County, KS, Smith County, KS, Washington County, KS, Brown County, MN, Cottonwood County, MN, Jackson County, MN, Martin County, MN, Murray County, MN, Nobles County, MN, Rock County, MN, Watonwan County, MN, Atchison County, MO, Holt County, MO, Adams County, NE, Antelope County, NE, Boone County, NE, Boyd County, NE, Buffalo County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Franklin County, NE, Gage County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Holt County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Kearney County, NE, Knox County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Wheeler County, NE, York County, NE, Bon Homme County, SD, Clay County, SD, Lincoln County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.4 hours before the alert went out and 49 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: 277 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1550 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 296 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

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.

Issued	Product	Office	Counties	Lasted
May 16, 8:21 PM CDT	Mesoscale Discussion	SPC	Emmet	114 min
May 17, 12:41 PM CDT	Mesoscale Discussion	SPC	Benton, Buchanan, Clayton, Delaware, Dubuque, Jackson and 2 more	3 hr
May 17, 1:42 PM CDT	Mesoscale Discussion	SPC	Buena Vista, Calhoun, Carroll, Cherokee, Crawford, Harrison and 4 more	2 hr
May 17, 3:52 PM CDT	Mesoscale Discussion	SPC	Adair, Adams, Appanoose, Benton, Cass, Clarke and 33 more	113 min
May 17, 4:45 PM CDT	Severe Thunderstorm Watch	SPC	Adair, Adams, Appanoose, Audubon, Boone, Cass and 26 more	5 hr
May 17, 6:44 PM CDT	Mesoscale Discussion	SPC	Dubuque	61 min
May 16, 8:07 PM CDT	Mesoscale Discussion	SPC	Clay, Cloud, Jewell, Lincoln, Marshall, Mitchell and 7 more	83 min
May 16, 8:57 PM CDT	Mesoscale Discussion	SPC	Clark, Ellis, Finney, Ford, Gove, Grant and 18 more	93 min
May 16, 11:51 PM CDT	Mesoscale Discussion	SPC	Harvey, Kingman, Pawnee, Reno, Sedgwick, Stafford	114 min
May 17, 3:08 PM CDT	Mesoscale Discussion	SPC	Barton, Chase, Clark, Clay, Cloud, Comanche and 54 more	3 hr
May 17, 3:40 PM CDT	Tornado Watch	SPC	Barton, Butler, Clark, Clay, Dickinson, Edwards and 40 more	6 hr
May 16, 7:27 PM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Butler, Cedar, Colfax, Cuming and 18 more	3 hr

Nearby

Mesoscale Discussions in Nebraska, 2004 Mesoscale Discussions in Iowa, 2004 Mesoscale Discussions in Kansas, 2004 Every mesoscale discussion in 2004

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.