Alert archive / Kansas / Mesoscale Discussions in 2013

Mesoscale Discussion 414

April 9, 20134 states

The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2013, 7:22 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Apr 9, 2013, 7:22 PM CDT (00:22 UTC)
Expired: Apr 9, 2013, 9:45 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 40 counties

Barber County, KS, Barton County, KS, Clark County, KS, Cloud County, KS, Comanche County, KS, Edwards County, KS, Ellsworth County, KS, Jewell County, KS, Kiowa County, KS, Lincoln County, KS, Mitchell County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pratt County, KS, Republic County, KS, Rice County, KS, Russell County, KS, Stafford County, KS, Butler County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Fillmore County, NE, Hamilton County, NE, Jefferson County, NE, Nuckolls County, NE, Platte County, NE, Polk County, NE, Saline County, NE, Seward County, NE, Stanton County, NE, Thayer County, NE, York County, NE, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Hemphill County, TX

The radar

The Wichita radar (KICT), 147 km from the middle of the area, began a volume at 00:24 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

Dodge City, (KDDC), launched 00:00Z, 0.4 hours before the alert went out and 168 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: 2 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 572 m above ground
0-6 km bulk shear: 98 kt
0-1 km storm-relative helicity: 166 m²/s²
0-3 km storm-relative helicity: 318 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

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
Apr 9, 8:41 PM CDT	Mesoscale Discussion	SPC	Brown, Clay, Cloud, Dickinson, Geary, Jackson and 10 more	64 min
Apr 9, 8:51 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Comanche, Cowley and 16 more	54 min
Apr 9, 9:01 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Cherokee, Crawford, Franklin and 7 more	89 min
Apr 9, 11:27 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Brown, Butler, Chase, Clay and 32 more	63 min
Apr 10, 5:32 AM CDT	Mesoscale Discussion	SPC	Barber, Butler, Chase, Cowley, Dickinson, Greenwood and 13 more	4 hr
Apr 9, 7:28 PM CDT	Mesoscale Discussion	SPC	Callahan, Eastland, Jack, Palo Pinto, Shackelford, Stephens and 3 more	62 min
Apr 10, 4:46 PM CDT	Mesoscale Discussion	SPC	Newton	119 min

Nearby

Mesoscale Discussions in Kansas, 2013 Mesoscale Discussions in Nebraska, 2013 Mesoscale Discussions in Oklahoma, 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.