Alert archive / Iowa / Mesoscale Discussions in 2016

Mesoscale Discussion 1016

June 22, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2016, 2:31 AM CDT for 4 states. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
Jun 22, 2016, 2:31 AM CDT (07:31 UTC)
Expired
Jun 22, 2016, 4:30 AM CDT
In force
119 min
Issued by
the Storm Prediction Center
All 61 counties

Benton County, IA, Black Hawk County, IA, Bremer County, IA, Buena Vista County, IA, Butler County, IA, Calhoun County, IA, Cerro Gordo County, IA, Cherokee County, IA, Clay County, IA, Des Moines County, IA, Dickinson County, IA, Emmet County, IA, Floyd County, IA, Franklin County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Henry County, IA, Humboldt County, IA, Iowa County, IA, Jefferson County, IA, Johnson County, IA, Keokuk County, IA, Kossuth County, IA, Linn County, IA, Louisa County, IA, Lyon County, IA, Marshall County, IA, Muscatine County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Poweshiek County, IA, Sac County, IA, Sioux County, IA, Tama County, IA, Washington County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA, Mercer County, IL, Jackson County, MN, Nobles County, MN, Rock County, MN, Aurora County, SD, Brule County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Hanson County, SD, Hutchinson County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Des Moines radar (KDMX), 135 km from the middle of the area, began a volume at 07:32 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

Omaha, NE (KOAX), launched 00:00Z, 7.5 hours before the alert went out and 198 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, Omaha, NE at 00:00Z on 2016-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3071 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, Omaha, NE at 00:00Z on 2016-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
3071 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
1409 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
415 m²/s²
Significant tornado parameter
3.1
Supercell composite
49.4

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.

IssuedProductOfficeCountiesLasted
Jun 21, 10:28 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, Fulton and 18 more2 hr
Jun 21, 11:18 PM CDTSevere Thunderstorm WatchSPCHancock, Henderson, McDonough, Mercer, Rock Island, Warren6 hr
Jun 22, 4:00 AM CDTMesoscale DiscussionSPCBrown, Cass, Christian, DeWitt, Fulton, Hancock and 14 more2 hr
Jun 22, 4:25 AM CDTSevere Thunderstorm WatchSPCCass, Champaign, Christian, Coles, Cumberland, DeWitt and 15 more3 hr
Jun 22, 3:38 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 32 more97 min
Jun 22, 6:11 PM CDTTornado WatchSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 28 more7 hr
Jun 21, 9:49 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Crawford, Dickinson, Ida and 8 more26 min
Jun 21, 10:21 PM CDTSevere Thunderstorm WatchSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more7 hr
Jun 22, 4:43 AM CDTMesoscale DiscussionSPCClay, Dickinson, Lyon, O'Brien, Osceola, Sioux92 min
Jun 22, 5:43 PM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Brown, Carver, Chisago and 24 more2 hr
Jun 21, 8:00 PM CDTMesoscale DiscussionSPCBrule, Buffalo, Dewey, Haakon, Hand, Harding and 11 more60 min
Jun 21, 8:35 PM CDTSevere Thunderstorm WatchSPCBrown, Campbell, Corson, Edmunds, McPherson, Walworth7 hr
Jun 21, 11:30 PM CDTMesoscale DiscussionSPCBrown, Campbell, Edmunds, McPherson60 min
Jun 22, 1:15 AM CDTMesoscale DiscussionSPCBeadle, Brown, Campbell, Clark, Edmunds, Faulk and 8 more2 hr

Nearby

Mesoscale Discussions in Iowa, 2016Mesoscale Discussions in South Dakota, 2016Mesoscale Discussions in Minnesota, 2016Every mesoscale discussion in 2016

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.