Alert archive / Nebraska / Mesoscale Discussions in 2014

Mesoscale Discussion 1015

June 16, 20144 states

The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2014, 2:13 PM CDT for 4 states. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued: Jun 16, 2014, 2:13 PM CDT (19:13 UTC)
Expired: Jun 16, 2014, 3:15 PM CDT
In force: 62 min
Issued by: the Storm Prediction Center
Chance of a watch: 80%

All 61 counties

Fremont County, IA, Mills County, IA, Atchison County, MO, Holt County, MO, Adams County, NE, Antelope County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Holt County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Keya Paha County, NE, Knox County, NE, Lancaster County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Rock County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thayer County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Wheeler County, NE, York County, NE, Gregory County, SD

The radar

The Omaha radar (KOAX), 94 km from the middle of the area, began a volume at 19:15 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 watches that followed

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

Tornado Watch 303Jun 16, 3:10 PM CDT

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.2 hours before the alert went out and 94 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: 33 J/kg
Mixed-layer CIN: -485 J/kg
Mixed-layer LCL: 1667 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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, 7:12 AM CDT	Severe Thunderstorm Watch	SPC	Fremont, Harrison, Lyon, Mills, Monona, Plymouth and 4 more	9 hr
Jun 16, 10:19 AM CDT	Mesoscale Discussion	SPC	Adair, Adams, Appanoose, Audubon, Boone, Buena Vista and 64 more	116 min
Jun 16, 12:25 PM CDT	Tornado Watch	SPC	Audubon, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 33 more	8 hr
Jun 16, 2:19 PM CDT	Mesoscale Discussion	SPC	Davis, Jefferson, Lee, Van Buren, Wapello	86 min
Jun 16, 3:07 PM CDT	Tornado Watch PDS	SPC	Harrison, Monona, Shelby	7 hr
Jun 16, 3:11 PM CDT	Mesoscale Discussion	SPC	Boone, Buena Vista, Calhoun, Carroll, Cherokee, Clay and 18 more	2 hr
Jun 16, 3:36 PM CDT	Severe Thunderstorm Watch	SPC	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more	5 hr
Jun 16, 5:10 PM CDT	Mesoscale Discussion	SPC	Allamakee, Bremer, Chickasaw, Clayton, Fayette, Floyd and 3 more	35 min
Jun 16, 5:37 PM CDT	Tornado Watch	SPC	Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler and 38 more	6 hr
Jun 16, 5:46 PM CDT	Tornado Watch	SPC	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	6 hr
Jun 16, 2:47 AM CDT	Mesoscale Discussion	SPC	Adams, Antelope, Blaine, Boone, Brown, Buffalo and 30 more	118 min
Jun 16, 3:50 PM CDT	Mesoscale Discussion	SPC	Adams, Buffalo, Dawson, Franklin, Frontier, Furnas and 7 more	115 min
Jun 16, 4:03 PM CDT	Mesoscale Discussion	SPC	Box Butte, Cherry, Dawes, Sheridan, Sioux	117 min
Jun 16, 4:32 PM CDT	Mesoscale Discussion	SPC	Cuming, Thurston	58 min
Jun 16, 6:50 PM CDT	Mesoscale Discussion	SPC	Garfield, Wheeler	55 min
Jun 16, 7:33 AM CDT	Mesoscale Discussion	SPC	Beadle, Brown, Buffalo, Clark, Codington, Day and 18 more	57 min
Jun 16, 12:48 PM CDT	Mesoscale Discussion	SPC	Bon Homme, Brookings, Clay, Davison, Douglas, Hanson and 12 more	87 min

Nearby

Mesoscale Discussions in Nebraska, 2014 Mesoscale Discussions in Iowa, 2014 Mesoscale Discussions in Missouri, 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.