Alert archive / Oklahoma / Mesoscale Discussions in 2008

Mesoscale Discussion 156

February 5, 200813 counties in Arkansas; 5 counties in Missouri; 19 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Feb 5, 2008, 10:18 AM CST for 13 counties in Arkansas; 5 counties in Missouri; 19 counties in Oklahoma. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
Feb 5, 2008, 10:18 AM CST (16:18 UTC)
Expired
Feb 5, 2008, 11:45 AM CST
In force
87 min
Issued by
the Storm Prediction Center
All 37 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Newton County, AR, Polk County, AR, Scott County, AR, Sebastian County, AR, Washington County, AR, Barry County, MO, Christian County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Adair County, OK, Atoka County, OK, Cherokee County, OK, Coal County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Sequoyah County, OK, Wagoner County, OK

The radar

The Western Arkansas radar (KSRX), 49 km from the middle of the area, began a volume at 16:21 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

Springfield, MO (KSGF), launched 12:00Z, 4.3 hours before the alert went out and 189 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 12:00Z on 2008-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 325 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, Springfield, MO at 12:00Z on 2008-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 259 square meters per square second.1939587897117136Sfc1 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
325 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
259 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

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
Feb 4, 9:21 PM CSTMesoscale DiscussionSPCClay, Fulton, Greene, Randolph, Sharp84 min
Feb 5, 6:39 AM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clark, Cleburne and 32 more3 hr
Feb 5, 9:47 AM CSTMesoscale DiscussionSPCClay, Craighead, Crittenden, Cross, Greene, Jackson and 5 more88 min
Feb 5, 11:16 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Bradley, Calhoun, Clark and 53 more89 min
Feb 5, 11:56 AM CSTTornado WatchSPCHoward, Little River, Miller, Sevier7 hr
Feb 5, 12:11 PM CSTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Crittenden, Cross, Desha and 7 more94 min
Feb 5, 12:39 PM CSTTornado WatchSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 14 more7 hr
Feb 5, 2:08 PM CSTTornado Watch PDSSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 33 more10 hr
Feb 5, 3:09 PM CSTTornado Watch PDSSPCClay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more9 hr
Feb 5, 3:17 PM CSTMesoscale DiscussionSPCBaxter, Boone, Carroll, Crawford, Franklin, Johnson and 9 more88 min
Feb 5, 3:36 PM CSTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Clark, Cleburne, Cleveland and 19 more84 min
Feb 5, 5:39 PM CSTMesoscale DiscussionSPCArkansas, Baxter, Bradley, Calhoun, Clark, Clay and 42 more96 min
Feb 4, 6:20 PM CSTMesoscale DiscussionSPCAudrain, Barry, Barton, Benton, Boone, Callaway and 59 more85 min
Feb 4, 7:14 PM CSTSevere Thunderstorm WatchSPCAudrain, Barry, Barton, Benton, Boone, Callaway and 41 more6 hr
Feb 4, 9:44 PM CSTMesoscale DiscussionSPCCallaway, Camden, Cedar, Cole, Crawford, Dade and 23 more91 min
Feb 5, 6:45 AM CSTMesoscale DiscussionSPCMississippi, New Madrid, Stoddard2 hr
Feb 5, 7:07 AM CSTMesoscale DiscussionSPCAndrew, Buchanan, Caldwell, Clay, Clinton, Daviess and 6 more6 hr
Feb 5, 4:46 PM CSTMesoscale DiscussionSPCJefferson, Saint Louis, Washington, City of Saint Louis119 min
Feb 5, 5:26 PM CSTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Caldwell, Clay, Clinton and 8 more5 hr
Feb 4, 7:48 PM CSTMesoscale DiscussionSPCCraig, Creek, Delaware, Lincoln, Mayes, Nowata and 6 more87 min
Feb 5, 2:31 AM CSTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Cleveland, Comanche and 24 more2 hr
Feb 5, 5:03 AM CSTMesoscale DiscussionSPCAtoka, Bryan, Carter, Cherokee, Choctaw, Cleveland and 37 more117 min
Feb 5, 2:15 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Haskell, Latimer, McCurtain and 1 more90 min

Nearby

Mesoscale Discussions in Oklahoma, 2008Mesoscale Discussions in Arkansas, 2008Mesoscale Discussions in Missouri, 2008Every mesoscale discussion in 2008

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.