Alert archive / Oklahoma / Mesoscale Discussions in 2004

Mesoscale Discussion 1217

June 12, 200419 counties in Kansas; 39 counties in Oklahoma; 11 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2004, 1:12 PM CDT for 19 counties in Kansas; 39 counties in Oklahoma; 11 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 12, 2004, 1:12 PM CDT (18:12 UTC)
Expired
Jun 12, 2004, 3:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 69 counties

Butler County, KS, Chase County, KS, Chautauqua County, KS, Coffey County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Montgomery County, KS, Reno County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Jackson County, OK, Jefferson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Major County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Nowata County, OK, Okfuskee County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Tulsa County, OK, Washington County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Jack County, TX, Knox County, TX, Montague County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX

The radar

The Norman radar (KTLX), 77 km from the middle of the area, began a volume at 18:18 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, 6.2 hours before the alert went out and 80 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 2004-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 469 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 2004-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
469 J/kg
Mixed-layer CIN
-418 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
30 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
Jun 11, 7:58 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Chase, Coffey, Doniphan and 16 more2 hr
Jun 11, 11:34 PM CDTMesoscale DiscussionSPCLeavenworth, Wyandotte116 min
Jun 12, 2:18 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Elk, Labette and 6 more87 min
Jun 12, 10:30 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Chase and 28 more2 hr
Jun 12, 11:45 AM CDTTornado WatchSPCAtchison, Barton, Brown, Chase, Clay, Cloud and 28 more7 hr
Jun 12, 1:53 PM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Geary, Jackson, Jewell and 16 more2 hr
Jun 12, 2:40 PM CDTTornado WatchSPCBarber, Butler, Chautauqua, Cowley, Elk, Greenwood and 9 more8 hr
Jun 12, 3:10 PM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Cherokee, Crawford, Labette, Neosho6 hr
Jun 12, 4:36 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Crawford, Franklin and 6 more84 min
Jun 12, 5:00 PM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Chase, Clay, Cloud and 29 more90 min
Jun 12, 5:37 PM CDTMesoscale DiscussionSPCBarber, Butler, Chautauqua, Coffey, Comanche, Cowley and 10 more83 min
Jun 12, 6:15 PM CDTTornado WatchSPCAnderson, Atchison, Barton, Brown, Chase, Clay and 36 more5 hr
Jun 11, 8:17 PM CDTMesoscale DiscussionSPCComanche, Cotton, Jackson, Tillman88 min
Jun 12, 11:38 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Craig, Delaware, Mayes, Ottawa and 2 more2 hr
Jun 11, 10:50 PM CDTMesoscale DiscussionSPCArcher, Baylor, Callahan, Coke, Coleman, Fisher and 15 more85 min
Jun 11, 10:54 PM CDTMesoscale DiscussionSPCArcher, Baylor, Callahan, Coke, Coleman, Fisher and 15 more96 min
Jun 12, 3:08 PM CDTMesoscale DiscussionSPCBorden, Coke, Crane, Crockett, Fisher, Glasscock and 11 more2 hr
Jun 12, 3:25 PM CDTTornado WatchSPCBrewster, Callahan, Coke, Concho, Crockett, Fisher and 19 more6 hr
Jun 12, 6:10 PM CDTMesoscale DiscussionSPCBrewster, Callahan, Coke, Coleman, Concho, Crockett and 20 more95 min

Nearby

Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Texas, 2004Every 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.