Alert archive / Kansas / Mesoscale Discussions in 2015

Mesoscale Discussion 678

May 16, 201511 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at May 16, 2015, 9:24 PM CDT for 11 counties in Kansas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: May 16, 2015, 9:24 PM CDT (02:24 UTC)
Expired: May 16, 2015, 11:00 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center

Counties Allen County, KS, Butler County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 2.4 hours before the alert went out and 138 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: 158 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 843 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

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 16, 8:31 PM CDT	Mesoscale Discussion	SPC	Johnson, Linn, Miami, Wyandotte	89 min
May 16, 10:21 PM CDT	Tornado Watch	SPC	Bourbon, Cherokee, Crawford	5 hr
May 16, 10:27 PM CDT	Severe Thunderstorm Watch	SPC	Linn, Miami	4 hr

Nearby

Mesoscale Discussions in Kansas, 2015 Every mesoscale discussion in 2015

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.