Alert archive / Nebraska / Mesoscale Discussions in 2013

Mesoscale Discussion 1099

June 16, 20134 states

The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2013, 5:17 PM MDT for 4 states. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Jun 16, 2013, 5:17 PM MDT (23:17 UTC)
Expired: Jun 16, 2013, 6:45 PM MDT
In force: 88 min
Issued by: the Storm Prediction Center

All 66 counties

Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Prowers County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Finney County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Rawlins County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Adams County, NE, Arthur County, NE, Blaine County, NE, Brown County, NE, Buffalo County, NE, Cherry County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Kearney County, NE, Keith County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE, Rock County, NE, Sheridan County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Bennett County, SD, Oglala Lakota County, SD, Todd County, SD, Tripp County, SD

The radar

The Goodland radar (KGLD), 56 km from the middle of the area, began a volume at 23:18 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

Denver, CO (KDNR), launched 12:00Z, 11.3 hours before the alert went out and 151 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: 117 J/kg
Mixed-layer CIN: -313 J/kg
Mixed-layer LCL: 1964 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: -10 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, 12:05 PM MDT	Mesoscale Discussion	SPC	Sedgwick	85 min
Jun 16, 1:28 PM MDT	Mesoscale Discussion	SPC	Arapahoe, Bent, Cheyenne, Crowley, Elbert, Kiowa and 7 more	92 min
Jun 16, 2:23 PM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Cheyenne, Kiowa, Kit Carson, Lincoln and 3 more	7 hr
Jun 15, 8:10 PM MDT	Mesoscale Discussion	SPC	Barber, Clark, Edwards, Finney, Ford, Grant and 13 more	65 min
Jun 15, 10:22 PM MDT	Mesoscale Discussion	SPC	Barber, Edwards, Ford, Gray, Harper, Harvey and 11 more	53 min
Jun 16, 1:06 PM MDT	Severe Thunderstorm Watch	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	7 hr

Nearby

Mesoscale Discussions in Nebraska, 2013 Mesoscale Discussions in Kansas, 2013 Mesoscale Discussions in Colorado, 2013 Every mesoscale discussion in 2013

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.