Alert archive / Nebraska / Mesoscale Discussions in 2015

Mesoscale Discussion 965

June 10, 201524 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2015, 6:18 PM CDT for 24 counties in Nebraska. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 10, 2015, 6:18 PM CDT (23:18 UTC)
Expired: Jun 10, 2015, 7:45 PM CDT
In force: 87 min
Issued by: the Storm Prediction Center

All 24 counties

Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Garfield County, NE, Greeley County, NE, Howard County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Saunders County, NE, Sherman County, NE, Stanton County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Wheeler County, NE

The radar

The Omaha radar (KOAX), 131 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

Omaha, NE (KOAX), launched 12:00Z, 11.3 hours before the alert went out and 130 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: 737 J/kg
Mixed-layer CIN: -321 J/kg
Mixed-layer LCL: 2199 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 45 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 10, 2:02 PM CDT	Mesoscale Discussion	SPC	Adams, Arthur, Blaine, Brown, Buffalo, Chase and 32 more	118 min
Jun 10, 2:37 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Blaine, Boyd, Brown, Buffalo, Cherry and 36 more	9 hr
Jun 10, 3:13 PM CDT	Mesoscale Discussion	SPC	Butler, Cass, Colfax, Douglas, Johnson, Lancaster and 10 more	92 min

Nearby

Mesoscale Discussions in Nebraska, 2015 Every mesoscale discussion in 2015

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.