Alert archive / Nebraska / Mesoscale Discussions in 2012

Mesoscale Discussion 1161

June 14, 201214 counties in Kansas; 28 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2012, 1:41 PM CDT for 14 counties in Kansas; 28 counties in Nebraska. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2012, 1:41 PM CDT (18:41 UTC)
Expired: Jun 14, 2012, 2:45 PM CDT
In force: 64 min
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 42 counties

Decatur County, KS, Gove County, KS, Graham County, KS, Jewell County, KS, Logan County, KS, Norton County, KS, Phillips County, KS, Rooks County, KS, Sheridan County, KS, Smith County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Adams County, NE, Butler County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Kearney County, NE, Lancaster County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Platte County, NE, Polk County, NE, Saline County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thayer County, NE, Thurston County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 26 km from the middle of the area, began a volume at 18:45 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.7 hours before the alert went out and 177 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: 2256 J/kg
Mixed-layer CIN: -362 J/kg
Mixed-layer LCL: 799 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 183 m²/s²
0-3 km storm-relative helicity: 194 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 14, 3:11 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Gove, Graham, Greeley, Jewell and 13 more	7 hr
Jun 14, 3:14 PM CDT	Mesoscale Discussion	SPC	Grant, Hamilton, Kearny, Morton, Stanton, Stevens	61 min
Jun 14, 3:46 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Clark, Comanche, Edwards, Ellis, Finney and 21 more	9 hr
Jun 14, 6:07 PM CDT	Mesoscale Discussion	SPC	Barton, Brown, Clay, Cloud, Dickinson, Doniphan and 27 more	83 min
Jun 14, 3:27 PM CDT	Severe Thunderstorm Watch	SPC	Burt, Butler, Cass, Colfax, Cuming, Dakota and 17 more	8 hr

Nearby

Mesoscale Discussions in Nebraska, 2012 Mesoscale Discussions in Kansas, 2012 Every mesoscale discussion in 2012

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.