Alert archive / Kansas / Mesoscale Discussions in 2013

Mesoscale Discussion 894

May 30, 201316 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at May 30, 2013, 9:47 PM CDT for 16 counties in Kansas. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued: May 30, 2013, 9:47 PM CDT (02:47 UTC)
Expired: May 30, 2013, 10:45 PM CDT
In force: 58 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Barton County, KS, Butler County, KS, Chase County, KS, Dickinson County, KS, Ellsworth County, KS, Harvey County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Morris County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS

The radar

The Wichita radar (KICT), 56 km from the middle of the area, began a volume at 02:47 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, 2.8 hours before the alert went out and 170 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: 1121 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1584 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 329 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 13.1

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
May 31, 2:05 AM CDT	Mesoscale Discussion	SPC	Atchison, Dickinson, Douglas, Geary, Jackson, Jefferson and 8 more	85 min
May 31, 2:44 AM CDT	Severe Thunderstorm Watch	SPC	Atchison, Brown, Chase, Clay, Cloud, Dickinson and 24 more	5 hr
May 31, 4:51 AM CDT	Mesoscale Discussion	SPC	Chase, Douglas, Franklin, Geary, Jefferson, Johnson and 8 more	114 min
May 31, 1:49 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 2 more	116 min
May 31, 2:15 PM CDT	Tornado Watch	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 3 more	8 hr

Nearby

Mesoscale Discussions in Kansas, 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.