Alert archive / Nebraska / Mesoscale Discussions in 2016

Mesoscale Discussion 590

May 10, 20167 counties in Kansas; 32 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 10, 2016, 6:14 PM CDT for 7 counties in Kansas; 32 counties in Nebraska. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: May 10, 2016, 6:14 PM CDT (23:14 UTC)
Expired: May 10, 2016, 7:45 PM CDT
In force: 91 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 39 counties

Graham County, KS, Jewell County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Antelope County, NE, Boone County, NE, Buffalo County, NE, Butler County, NE, Clay County, NE, Colfax County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thayer County, NE, Webster County, NE, Wheeler County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 35 km from the middle of the area, began a volume at 23:15 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.

Severe Thunderstorm Watch 164May 10, 6:30 PM CDT

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.2 hours before the alert went out and 170 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: 1601 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 80 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
May 9, 7:33 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Brown, Butler, Chase and 31 more	57 min
May 10, 3:18 PM CDT	Mesoscale Discussion	SPC	Decatur, Gove, Graham, Greeley, Lane, Logan and 12 more	117 min
May 10, 6:29 PM CDT	Severe Thunderstorm Watch	SPC	Jewell, Phillips, Republic, Smith	6 hr
May 9, 10:06 PM CDT	Mesoscale Discussion	SPC	Burt, Cuming, Dakota, Douglas, Madison, Nemaha and 6 more	54 min
May 10, 2:42 PM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Boyd, Cedar, Colfax, Cuming and 17 more	93 min

Nearby

Mesoscale Discussions in Nebraska, 2016 Mesoscale Discussions in Kansas, 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.