Alert archive / South Dakota / Mesoscale Discussions in 2016

Mesoscale Discussion 916

June 14, 20167 counties in Nebraska; 10 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2016, 3:31 PM CDT for 7 counties in Nebraska; 10 counties in South Dakota. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2016, 3:31 PM CDT (20:31 UTC)
Expired: Jun 14, 2016, 5:30 PM CDT
In force: 119 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Blaine County, NE, Brown County, NE, Cherry County, NE, Garfield County, NE, Keya Paha County, NE, Loup County, NE, Rock County, NE, Bennett County, SD, Butte County, SD, Jackson County, SD, Lawrence County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Todd County, SD, Tripp County, SD

The radar

The Rapid City radar (KUDX), 117 km from the middle of the area, began a volume at 20:33 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.5 hours before the alert went out and 277 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1464 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -103 m²/s²
0-3 km storm-relative helicity: -114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Jun 13, 7:00 PM CDT	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 13 more	90 min
Jun 13, 8:30 PM CDT	Mesoscale Discussion	SPC	Arthur, Blaine, Box Butte, Brown, Cherry, Cheyenne and 11 more	60 min
Jun 13, 11:26 PM CDT	Mesoscale Discussion	SPC	Blaine, Brown, Chase, Custer, Dawson, Dundy and 11 more	2 hr
Jun 14, 11:45 AM CDT	Mesoscale Discussion	SPC	Burt, Butler, Cass, Clay, Colfax, Cuming and 17 more	2 hr
Jun 14, 12:43 PM CDT	Severe Thunderstorm Watch	SPC	Burt, Cuming, Dakota, Dixon, Dodge, Douglas and 4 more	8 hr
Jun 14, 2:51 PM CDT	Mesoscale Discussion	SPC	Burt, Dakota, Dodge, Douglas, Sarpy, Saunders and 2 more	114 min
Jun 14, 6:15 PM CDT	Mesoscale Discussion	SPC	Richardson	3 hr
Jun 14, 2:33 PM CDT	Tornado Watch	SPC	Grant, Marshall, Roberts	5 hr

Nearby

Mesoscale Discussions in South Dakota, 2016 Mesoscale Discussions in Nebraska, 2016 Every mesoscale discussion in 2016

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.