Alert archive / South Dakota / Mesoscale Discussions in 2005

Mesoscale Discussion 1532

June 28, 2005Cherry County, Keya Paha County, Sheridan County, Nebraska; 25 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 28, 2005, 9:15 PM MDT for Cherry County, Keya Paha County, Sheridan County, Nebraska; 25 counties in South Dakota. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued
Jun 28, 2005, 9:15 PM MDT (03:15 UTC)
Expired
Jun 28, 2005, 10:15 PM MDT
In force
60 min
Issued by
the Storm Prediction Center
All 28 counties

Cherry County, NE, Keya Paha County, NE, Sheridan County, NE, Aurora County, SD, Bennett County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Corson County, SD, Dewey County, SD, Gregory County, SD, Haakon County, SD, Hand County, SD, Harding County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Lyman County, SD, Mellette County, SD, Perkins County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 113 km from the middle of the area, began a volume at 03:16 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

Rapid City, SD (KUNR), launched 00:00Z, 3.3 hours before the alert went out and 118 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, Rapid City, SD at 00:00Z on 2005-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 374 joules per kilogram.LCLEL10008507005003002001001 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, Rapid City, SD at 00:00Z on 2005-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
374 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
3612 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Jun 28, 6:10 PM MDTSevere Thunderstorm WatchSPCArthur, Chase, Cheyenne, Deuel, Dundy, Frontier and 13 more5 hr
Jun 28, 6:15 PM MDTSevere Thunderstorm WatchSPCBlaine, Boyd, Brown, Garfield, Holt, Keya Paha and 4 more5 hr
Jun 28, 9:34 PM MDTMesoscale DiscussionSPCArthur, Chase, Cheyenne, Deuel, Dundy, Frontier and 11 more86 min
Jun 29, 12:30 AM MDTMesoscale DiscussionSPCBrown, Cherry, Keya Paha, Rock90 min
Jun 29, 1:45 PM MDTMesoscale DiscussionSPCGage, Jefferson, Johnson, Lancaster, Nemaha, Otoe and 3 more2 hr
Jun 29, 3:50 PM MDTSevere Thunderstorm WatchSPCBurt, Cass, Dodge, Douglas, Gage, Jefferson and 10 more6 hr
Jun 29, 5:50 PM MDTMesoscale DiscussionSPCCass, Douglas, Gage, Jefferson, Johnson, Lancaster and 10 more85 min
Jun 28, 7:50 PM MDTSevere Thunderstorm WatchSPCHarding, Perkins7 hr
Jun 28, 9:45 PM MDTSevere Thunderstorm WatchSPCBrule, Buffalo, Butte, Campbell, Corson, Dewey and 15 more7 hr
Jun 28, 10:11 PM MDTMesoscale DiscussionSPCHarding94 min
Jun 29, 1:47 AM MDTMesoscale DiscussionSPCBrown, Edmunds, Faulk, McPherson, Potter, Spink and 1 more88 min
Jun 29, 10:01 AM MDTMesoscale DiscussionSPCBrookings, Brown, Clark, Codington, Day, Deuel and 7 more59 min
Jun 29, 10:30 AM MDTTornado WatchSPCAurora, Beadle, Bon Homme, Brookings, Brown, Charles Mix and 25 more7 hr
Jun 29, 12:52 PM MDTMesoscale DiscussionSPCBrookings, Brown, Clark, Codington, Day, Deuel and 8 more113 min
Jun 29, 2:37 PM MDTMesoscale DiscussionSPCBrookings, Deuel, Grant, Moody, Roberts53 min
Jun 29, 2:50 PM MDTTornado WatchSPCDeuel, Grant7 hr

Nearby

Mesoscale Discussions in South Dakota, 2005Mesoscale Discussions in Nebraska, 2005Every mesoscale discussion in 2005

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.