Alert archive / Oklahoma / Mesoscale Discussions in 2016

Mesoscale Discussion 767

May 27, 201614 counties in Kansas; 17 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 27, 2016, 5:13 PM CDT for 14 counties in Kansas; 17 counties in Oklahoma. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: May 27, 2016, 5:13 PM CDT (22:13 UTC)
Expired: May 27, 2016, 6:45 PM CDT
In force: 92 min
Issued by: the Storm Prediction Center

All 31 counties

Butler County, KS, Chase County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Lyon County, KS, Marion County, KS, Morris County, KS, Sedgwick County, KS, Sumner County, KS, Wabaunsee County, KS, Canadian County, OK, Cleveland County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Stephens County, OK

The radar

The Vance AFB radar (KVNX), 72 km from the middle of the area, began a volume at 22:15 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

Norman, OK (KOUN), launched 12:00Z, 10.2 hours before the alert went out and 154 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: 401 J/kg
Mixed-layer CIN: -217 J/kg
Mixed-layer LCL: 782 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 8:52 PM CDT	Mesoscale Discussion	SPC	Allen, Barber, Butler, Chase, Coffey, Comanche and 20 more	53 min
May 26, 9:17 PM CDT	Mesoscale Discussion	SPC	Ellis, Graham, Norton, Osborne, Phillips, Rooks and 2 more	58 min
May 26, 9:59 PM CDT	Severe Thunderstorm Watch	SPC	Butler, Chase, Chautauqua, Clay, Cowley, Dickinson and 17 more	4 hr
May 27, 1:02 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Chautauqua, Cowley and 15 more	88 min
May 27, 2:32 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Butler, Chase, Chautauqua, Clark and 45 more	7 hr
May 27, 5:00 PM CDT	Mesoscale Discussion	SPC	Lane, Ness, Pawnee, Rush, Scott, Wichita	90 min
May 27, 5:41 PM CDT	Mesoscale Discussion	SPC	Brown, Doniphan	64 min
May 26, 7:46 PM CDT	Mesoscale Discussion	SPC	Beckham, Blaine, Caddo, Comanche, Cotton, Custer and 13 more	59 min

Nearby

Mesoscale Discussions in Oklahoma, 2016 Mesoscale Discussions in Kansas, 2016 Every mesoscale discussion in 2016

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.