Alert archive / Oklahoma / Mesoscale Discussions in 2014

Mesoscale Discussion 967

June 11, 201418 counties in Kansas; 20 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2014, 8:41 PM CDT for 18 counties in Kansas; 20 counties in Oklahoma. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: Jun 11, 2014, 8:41 PM CDT (01:41 UTC)
Expired: Jun 11, 2014, 10:15 PM CDT
In force: 94 min
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 38 counties

Barber County, KS, Butler County, KS, Comanche County, KS, Cowley County, KS, Edwards County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Kiowa County, KS, Marion County, KS, McPherson County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Alfalfa County, OK, Blaine County, OK, Canadian County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grant County, OK, Harper County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, Noble County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Woods County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 37 km from the middle of the area, began a volume at 01:39 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.

Severe Thunderstorm Watch 286Jun 11, 9:50 PM CDT

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 1.7 hours before the alert went out and 195 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: 1716 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 2429 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.7

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 11, 7:27 PM CDT	Mesoscale Discussion	SPC	Ellis, Jewell, Mitchell, Osborne, Phillips, Rooks and 3 more	33 min
Jun 11, 7:49 PM CDT	Severe Thunderstorm Watch	SPC	Barton, Ellsworth, Jewell, Lincoln, Mitchell, Osborne and 3 more	4 hr
Jun 11, 9:49 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Butler, Chase, Comanche, Cowley and 18 more	6 hr
Jun 11, 11:41 PM CDT	Mesoscale Discussion	SPC	Butler, Cowley, Dickinson, Harper, Harvey, McPherson and 4 more	94 min
Jun 12, 12:59 AM CDT	Severe Thunderstorm Watch	SPC	Creek, Haskell, Latimer, McIntosh, Muskogee, Nowata and 9 more	5 hr
Jun 12, 2:12 AM CDT	Mesoscale Discussion	SPC	Caddo, Canadian, Cleveland, Creek, Custer, Garvin and 28 more	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 2014 Mesoscale Discussions in Kansas, 2014 Every mesoscale discussion in 2014

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.