Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 1475

July 2, 20044 states

The Storm Prediction Center issued this mesoscale discussion at Jul 2, 2004, 6:51 PM MDT for 4 states. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Jul 2, 2004, 6:51 PM MDT (00:51 UTC)
Expired: Jul 2, 2004, 8:15 PM MDT
In force: 84 min
Issued by: the Storm Prediction Center

Counties Baca County, CO, Bent County, CO, Prowers County, CO, Grant County, KS, Hamilton County, KS, Kearny County, KS, Morton County, KS, Stanton County, KS, Stevens County, KS, Cimarron County, OK, Texas County, OK, Carson County, TX, Gray County, TX, Hansford County, TX, Hutchinson County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 158 km from the middle of the area, began a volume at 00:52 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

Dodge City, (KDDC), launched 00:00Z, 0.9 hours before the alert went out and 203 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: 1168 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1784 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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.

Issued	Product	Office	Counties	Lasted
Jul 2, 8:19 PM MDT	Mesoscale Discussion	SPC	Baca, Bent, Kiowa, Prowers	56 min
Jul 3, 2:50 PM MDT	Mesoscale Discussion	SPC	Kit Carson, Logan, Phillips, Sedgwick, Washington, Yuma	115 min
Jul 3, 3:30 PM MDT	Severe Thunderstorm Watch	SPC	Kit Carson, Phillips, Sedgwick, Yuma	7 hr
Jul 3, 5:27 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Graham, Jewell, Norton, Phillips and 3 more	63 min
Jul 3, 5:55 PM MDT	Severe Thunderstorm Watch	SPC	Cloud, Graham, Jewell, Mitchell, Norton, Osborne and 5 more	7 hr
Jul 2, 6:17 PM MDT	Mesoscale Discussion	SPC	Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more	88 min
Jul 2, 7:26 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Coal, Creek, Delaware, Haskell and 14 more	94 min
Jul 2, 9:39 PM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Creek, Delaware, Haskell, Latimer and 11 more	96 min
Jul 3, 12:01 AM MDT	Mesoscale Discussion	SPC	Atoka, Caddo, Canadian, Carter, Cleveland, Coal and 35 more	89 min
Jul 3, 12:15 AM MDT	Severe Thunderstorm Watch	SPC	Caddo, Carter, Comanche, Cotton, Garvin, Grady and 10 more	6 hr
Jul 3, 2:19 AM MDT	Mesoscale Discussion	SPC	Haskell, Latimer, LeFlore, McCurtain, McIntosh, Muskogee and 3 more	2 hr
Jul 3, 2:32 AM MDT	Mesoscale Discussion	SPC	Carter, Cotton, Jefferson, Love, Tillman	118 min
Jul 3, 5:15 AM MDT	Mesoscale Discussion	SPC	Bryan, Choctaw, Love, Marshall	60 min
Jul 3, 3:05 AM MDT	Severe Thunderstorm Watch	SPC	Camp, Clay, Collin, Cooke, Dallas, Delta and 22 more	4 hr

Nearby

Mesoscale Discussions in Texas, 2004 Mesoscale Discussions in Kansas, 2004 Mesoscale Discussions in Colorado, 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; radar from the NEXRAD Level II archive.