Alert archive / Kansas / Mesoscale Discussions in 2017

Mesoscale Discussion 1470

August 10, 201717 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Aug 10, 2017, 4:53 PM CDT for 17 counties in Kansas. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Aug 10, 2017, 4:53 PM CDT (21:53 UTC)
Expired: Aug 10, 2017, 6:30 PM CDT
In force: 97 min
Issued by: the Storm Prediction Center

Counties Barton County, KS, Edwards County, KS, Ellsworth County, KS, Harvey County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, McPherson County, KS, Ottawa County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Stafford County, KS

The radar

The Wichita radar (KICT), 118 km from the middle of the area, began a volume at 21:52 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 12:00Z, 9.9 hours before the alert went out and 126 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: 520 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 1117 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

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
Aug 9, 7:36 PM CDT	Mesoscale Discussion	SPC	Barber, Comanche, Harper	84 min
Aug 10, 1:42 PM CDT	Mesoscale Discussion	SPC	Harper, Sumner	2 hr
Aug 10, 2:05 PM CDT	Mesoscale Discussion	SPC	Barton, Cloud, Ellis, Ellsworth, Gove, Graham and 15 more	115 min
Aug 10, 2:06 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Comanche, Harper, Sumner	7 hr
Aug 10, 2:27 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Barton, Butler, Chase, Chautauqua, Clay and 38 more	7 hr
Aug 10, 3:50 PM CDT	Mesoscale Discussion	SPC	Grant, Gray, Greeley, Hamilton, Haskell, Kearny and 5 more	115 min
Aug 10, 4:52 PM CDT	Severe Thunderstorm Watch	SPC	Finney, Grant, Gray, Greeley, Hamilton, Haskell and 7 more	7 hr
Aug 10, 6:44 PM CDT	Mesoscale Discussion	SPC	Barber, Comanche	91 min

Nearby

Mesoscale Discussions in Kansas, 2017 Every mesoscale discussion in 2017

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.