Alert archive / Oklahoma / Mesoscale Discussions in 2013

Mesoscale Discussion 963

June 5, 20134 counties in Kansas; 18 counties in Oklahoma; 4 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2013, 2:36 AM CDT for 4 counties in Kansas; 18 counties in Oklahoma; 4 counties in Texas. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Jun 5, 2013, 2:36 AM CDT (07:36 UTC)
Expired: Jun 5, 2013, 4:00 AM CDT
In force: 84 min
Issued by: the Storm Prediction Center

All 26 counties

Cowley County, KS, Harper County, KS, Sedgwick County, KS, Sumner County, KS, Blaine County, OK, Canadian County, OK, Cimarron County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Noble County, OK, Oklahoma County, OK, Pawnee County, OK, Payne County, OK, Roger Mills County, OK, Texas County, OK, Hansford County, TX, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX

The radar

The Vance AFB radar (KVNX), 94 km from the middle of the area, began a volume at 07:38 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

Lamont, OK (KLMN), launched 00:00Z, 7.6 hours before the alert went out and 147 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1875 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 996 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.9

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.

Issued	Product	Office	Counties	Lasted
Jun 4, 7:35 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Finney, Gove, Grant, Gray and 18 more	115 min
Jun 4, 9:18 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ellis and 30 more	87 min
Jun 4, 9:37 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Butler, Chase, Clark, Comanche and 29 more	7 hr
Jun 4, 11:39 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Clark, Comanche and 29 more	66 min
Jun 4, 7:30 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Comanche, Cotton, Custer, Dewey and 11 more	2 hr
Jun 4, 10:19 PM CDT	Mesoscale Discussion	SPC	Beaver, Texas	86 min
Jun 5, 1:45 PM CDT	Mesoscale Discussion	SPC	Dallam, Hartley, Oldham	90 min
Jun 5, 2:47 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 29 more	7 hr
Jun 5, 3:56 PM CDT	Mesoscale Discussion	SPC	Brown, Callahan, Coke, Coleman, Comanche, Concho and 22 more	94 min
Jun 5, 6:55 PM CDT	Mesoscale Discussion	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 27 more	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 2013 Mesoscale Discussions in Kansas, 2013 Mesoscale Discussions in Texas, 2013 Every mesoscale discussion in 2013

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.