Alert archive / Colorado / Mesoscale Discussions in 2009

Mesoscale Discussion 281

March 26, 20095 states

The Storm Prediction Center issued this mesoscale discussion at Mar 26, 2009, 5:32 PM MDT for 5 states. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Mar 26, 2009, 5:32 PM MDT (23:32 UTC)
Expired
Mar 26, 2009, 9:30 PM MDT
In force
4 hr
Issued by
the Storm Prediction Center
All 22 counties

Alamosa County, CO, Baca County, CO, Bent County, CO, Costilla County, CO, Crowley County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Hamilton County, KS, Morton County, KS, Stanton County, KS, Colfax County, NM, Union County, NM, Cimarron County, OK, Texas County, OK, Dallam County, TX

The radar

The Pueblo radar (KPUX), 157 km from the middle of the area, began a volume at 23:34 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.5 hours before the alert went out and 265 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, Amarillo Airport, TX at 12:00Z on 2009-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Amarillo Airport, TX at 12:00Z on 2009-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3921 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Mar 26, 6:55 AM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 7 more3 hr
Mar 26, 10:35 AM MDTMesoscale DiscussionSPCArapahoe, Boulder, Broomfield, Chaffee, Clear Creek, Custer and 14 more5 hr
Mar 26, 11:54 AM MDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery2 hr
Mar 26, 3:52 PM MDTMesoscale DiscussionSPCComanche, Cotton, Grady, Jefferson, Stephens83 min
Mar 25, 6:12 PM MDTTornado WatchSPCAustin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 9 more6 hr
Mar 25, 6:31 PM MDTMesoscale DiscussionSPCAustin, Brazos, Burleson, Fayette, Grimes, Harris and 9 more59 min
Mar 26, 8:14 AM MDTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Blanco, Caldwell, Comal and 16 more31 min
Mar 26, 8:39 AM MDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 25 more5 hr
Mar 26, 11:43 AM MDTMesoscale DiscussionSPCAransas, Atascosa, Bee, Brazoria, Calhoun, DeWitt and 11 more62 min
Mar 26, 11:57 AM MDTSevere Thunderstorm WatchSPCAransas, Bee, Brazoria, Calhoun, Chambers, Duval and 17 more6 hr
Mar 26, 2:06 PM MDTMesoscale DiscussionSPCHardin, Jasper, Jefferson, Newton, Orange, Tyler54 min
Mar 26, 2:51 PM MDTMesoscale DiscussionSPCAransas, Brazoria, Calhoun, Chambers, Fort Bend, Galveston and 8 more54 min
Mar 26, 2:57 PM MDTTornado WatchSPCAngelina, Cherokee, Hardin, Jasper, Jefferson, Nacogdoches and 6 more7 hr
Mar 26, 5:56 PM MDTMesoscale DiscussionSPCAngelina, Cherokee, Hardin, Jasper, Jefferson, Nacogdoches and 6 more94 min

Nearby

Mesoscale Discussions in Colorado, 2009Mesoscale Discussions in Kansas, 2009Mesoscale Discussions in New Mexico, 2009Every mesoscale discussion in 2009

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.