Alert archive / Kansas / Mesoscale Discussions in 2014

Mesoscale Discussion 1307

July 7, 201417 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Jul 7, 2014, 8:09 PM CDT for 17 counties in Kansas. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued: Jul 7, 2014, 8:09 PM CDT (01:09 UTC)
Expired: Jul 7, 2014, 9:15 PM CDT
In force: 66 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Barton County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Harvey County, KS, Hodgeman County, KS, Kiowa County, KS, Lincoln County, KS, McPherson County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Stafford County, KS

The radar

The Wichita radar (KICT), 122 km from the middle of the area, began a volume at 01:10 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 00:00Z, 1.2 hours before the alert went out and 269 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: 3800 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1622 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 17.0

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
Jul 7, 7:26 PM CDT	Severe Thunderstorm Watch	SPC	Johnson, Leavenworth, Linn, Miami, Wyandotte	6 hr
Jul 7, 7:52 PM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Cloud, Doniphan, Douglas and 15 more	83 min
Jul 7, 9:53 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 10 more	97 min
Jul 7, 10:45 PM CDT	Severe Thunderstorm Watch	SPC	Bourbon, Crawford	5 hr

Nearby

Mesoscale Discussions in Kansas, 2014 Every mesoscale discussion in 2014

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.