Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 1257

June 16, 20114 states

The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2011, 9:13 PM CDT for 4 states. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Jun 16, 2011, 9:13 PM CDT (02:13 UTC)
Expired: Jun 16, 2011, 10:45 PM CDT
In force: 92 min
Issued by: the Storm Prediction Center

All 75 counties

Barber County, KS, Barton County, KS, Cheyenne County, KS, Decatur County, KS, Edwards County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Harper County, KS, Kingman County, KS, Kiowa County, KS, Logan County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Rawlins County, KS, Reno County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Stafford County, KS, Sumner County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Adams County, NE, Chase County, NE, Dawson County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Kearney County, NE, Keith County, NE, Lincoln County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE, Webster County, NE, Alfalfa County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Jackson County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, McClain County, OK, Oklahoma County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Wichita County, TX

The radar

The Dodge City radar (KDDC), 30 km from the middle of the area, began a volume at 02:15 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, 2.2 hours before the alert went out and 236 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: 2014 J/kg
Mixed-layer CIN: -356 J/kg
Mixed-layer LCL: 1530 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 280 m²/s²
0-3 km storm-relative helicity: 611 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Jun 16, 11:03 PM CDT	Severe Thunderstorm Watch	SPC	Atchison, Brown, Doniphan, Jackson, Jefferson, Johnson and 5 more	5 hr
Jun 16, 11:10 PM CDT	Mesoscale Discussion	SPC	Butler, Cloud, Cowley, Elk, Ellsworth, Harvey and 13 more	65 min
Jun 17, 5:59 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Greeley, Logan, Rawlins, Scott, Sherman and 3 more	61 min
Jun 17, 6:23 PM CDT	Severe Thunderstorm Watch	SPC	Gove, Greeley, Hamilton, Logan, Scott, Sheridan and 4 more	8 hr
Jun 17, 6:44 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Barton, Bourbon, Brown and 44 more	91 min
Jun 16, 8:26 PM CDT	Mesoscale Discussion	SPC	Arthur, Banner, Blaine, Boyd, Brown, Cherry and 22 more	64 min

Nearby

Mesoscale Discussions in Kansas, 2011 Mesoscale Discussions in Oklahoma, 2011 Mesoscale Discussions in Nebraska, 2011 Every mesoscale discussion in 2011

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.