Alert archive / Oklahoma / Mesoscale Discussions in 2007

Mesoscale Discussion 739

May 7, 200721 counties in Kansas; 18 counties in Missouri; 24 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 7, 2007, 1:59 AM CDT for 21 counties in Kansas; 18 counties in Missouri; 24 counties in Oklahoma. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
May 7, 2007, 1:59 AM CDT (06:59 UTC)
Expired
May 7, 2007, 3:30 AM CDT
In force
91 min
Issued by
the Storm Prediction Center
All 63 counties

Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Henry County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Platte County, MO, Ray County, MO, Vernon County, MO, Cherokee County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Hughes County, OK, Lincoln County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 150 km from the middle of the area, began a volume at 06:59 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

Springfield, MO (KSGF), launched 00:00Z, 7.0 hours before the alert went out and 138 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, Springfield, MO at 00:00Z on 2007-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 917 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, Springfield, MO at 00:00Z on 2007-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.193958Sfc1 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
917 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1814 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

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
May 6, 8:26 PM CDTMesoscale DiscussionSPCAtchison, Brown, Coffey, Doniphan, Douglas, Franklin and 9 more64 min
May 6, 8:55 PM CDTMesoscale DiscussionSPCChautauqua, Cherokee, Crawford, Labette, Montgomery, Neosho and 1 more65 min
May 6, 9:07 PM CDTTornado WatchSPCAllen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 16 more6 hr
May 6, 9:26 PM CDTMesoscale DiscussionSPCHarper, Kingman64 min
May 6, 11:34 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 16 more56 min
May 7, 2:22 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 7 more113 min
May 6, 11:04 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Caddo, Canadian, Carter, Choctaw and 17 more56 min
May 6, 11:54 PM CDTTornado WatchSPCCaddo, Canadian, Cleveland, Comanche, Cotton, Garvin and 13 more5 hr
May 7, 4:30 AM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Cotton, Garvin and 8 more30 min
May 7, 10:29 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Johnston and 3 more2 hr
May 7, 10:51 AM CDTTornado WatchSPCAtoka, Bryan, Carter, Choctaw, Coal, Garvin and 10 more5 hr

Nearby

Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Missouri, 2007Every mesoscale discussion in 2007

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.