Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 436

April 6, 20064 states

The Storm Prediction Center issued this mesoscale discussion at Apr 6, 2006, 11:03 AM CDT for 4 states. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Apr 6, 2006, 11:03 AM CDT (16:03 UTC)
Expired
Apr 6, 2006, 1:00 PM CDT
In force
117 min
Issued by
the Storm Prediction Center
All 99 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Garland County, AR, Hempstead County, AR, Howard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Madison County, AR, Miller County, AR, Montgomery County, AR, Newton County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Washington County, AR, Yell County, AR, Barry County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Taney County, MO, Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Marshall County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Anderson County, TX, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Collin County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Grayson County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, Marion County, TX, Morris County, TX, Navarro County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Trinity County, TX, Upshur County, TX, Van Zandt County, TX, Walker County, TX, Wood County, TX

The radar

The Western Arkansas radar (KSRX), 127 km from the middle of the area, began a volume at 16:04 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

Norman, OK (KOUN), launched 12:00Z, 4.1 hours before the alert went out and 271 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, Norman, OK at 12:00Z on 2006-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 563 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, Norman, OK at 12:00Z on 2006-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 square meters per square second.1939587897Sfc1 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
563 J/kg
Mixed-layer CIN
-428 J/kg
Mixed-layer LCL
1073 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
255 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.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 12:12 PM CDTSevere Thunderstorm WatchSPCBaxter, Boone, Carroll, Cleburne, Conway, Franklin and 15 more4 hr
Apr 6, 3:29 PM CDTMesoscale DiscussionSPCBaxter, Cleburne, Conway, Fulton, Independence, Izard and 6 more91 min
Apr 6, 4:21 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 24 more84 min
Apr 6, 4:41 PM CDTTornado WatchSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 24 more7 hr
Apr 5, 10:36 PM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Caldwell, Callaway, Carroll and 30 more84 min
Apr 5, 11:09 PM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Boone, Callaway, Chariton, Clark and 30 more4 hr
Apr 6, 6:01 AM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Cass, Clay, Clinton and 4 more119 min
Apr 6, 11:19 AM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Clark, Franklin, Iron, Jefferson and 18 more56 min
Apr 6, 4:53 PM CDTMesoscale DiscussionSPCAndrew, Barry, Barton, Bates, Benton, Buchanan and 51 more97 min
Apr 6, 5:54 PM CDTTornado WatchSPCBarry, Barton, Bates, Benton, Camden, Cass and 33 more7 hr
Apr 6, 12:51 PM CDTMesoscale DiscussionSPCCleveland, Creek, Garfield, Grant, Kay, Lincoln and 9 more114 min
Apr 6, 1:15 PM CDTMesoscale DiscussionSPCComanche, Cotton, Jefferson, Stephens90 min
Apr 6, 1:26 PM CDTTornado WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 42 more8 hr
Apr 6, 3:45 PM CDTSevere Thunderstorm WatchSPCMcCurtain6 hr

Nearby

Mesoscale Discussions in Texas, 2006Mesoscale Discussions in Oklahoma, 2006Mesoscale Discussions in Arkansas, 2006Every mesoscale discussion in 2006

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.