Alert archive / Kansas / Mesoscale Discussions in 2016

Mesoscale Discussion 1768

October 6, 201619 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Oct 6, 2016, 5:12 PM CDT for 19 counties in Kansas. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Oct 6, 2016, 5:12 PM CDT (22:12 UTC)
Expired: Oct 6, 2016, 6:45 PM CDT
In force: 93 min
Issued by: the Storm Prediction Center

Counties Butler County, KS, Chase County, KS, Chautauqua County, KS, Cowley County, KS, Dickinson County, KS, Elk County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Lyon County, KS, Marion County, KS, Montgomery County, KS, Morris County, KS, Pottawatomie County, KS, Riley County, KS, Sedgwick County, KS, Sumner County, KS, Wabaunsee County, KS, Wilson County, KS

The radar

The Topeka radar (KTWX), 93 km from the middle of the area, began a volume at 22:16 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

Topeka, KS (KFOE), launched 12:00Z, 10.2 hours before the alert went out and 122 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: 1009 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 5.8

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
Oct 5, 8:06 PM CDT	Mesoscale Discussion	SPC	Anderson, Coffey, Douglas, Franklin, Greenwood, Jefferson and 6 more	2 hr
Oct 5, 11:03 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Chautauqua, Cowley, Elk, Greenwood and 4 more	117 min
Oct 6, 11:15 AM CDT	Mesoscale Discussion	SPC	Clay, Cloud, Jewell, Lincoln, Marshall, Mitchell and 7 more	2 hr
Oct 6, 1:22 PM CDT	Mesoscale Discussion	SPC	Atchison, Barber, Barton, Brown, Butler, Chase and 34 more	113 min
Oct 6, 2:12 PM CDT	Tornado Watch	SPC	Allen, Anderson, Atchison, Brown, Butler, Chase and 41 more	7 hr
Oct 6, 6:22 PM CDT	Mesoscale Discussion	SPC	Bourbon	83 min

Nearby

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.