Alert archive / Nebraska / Mesoscale Discussions in 2013

Mesoscale Discussion 1083

June 14, 2013Mills County, Iowa; 28 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2013, 6:11 PM CDT for Mills County, Iowa; 28 counties in Nebraska. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2013, 6:11 PM CDT (23:11 UTC)
Expired: Jun 14, 2013, 7:45 PM CDT
In force: 94 min
Issued by: the Storm Prediction Center

All 29 counties

Mills County, IA, Antelope County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Madison County, NE, Otoe County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, York County, NE

The radar

The Omaha radar (KOAX), 48 km from the middle of the area, began a volume at 23:14 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, 11.2 hours before the alert went out and 47 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: 1360 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 288 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 14, 2:28 AM CDT	Mesoscale Discussion	SPC	Fremont, Harrison, Mills, Monona, Montgomery, Page and 1 more	2 hr
Jun 14, 3:10 PM CDT	Mesoscale Discussion	SPC	Cass, Fremont, Harrison, Mills, Monona, Montgomery and 4 more	2 hr
Jun 14, 3:37 PM CDT	Tornado Watch	SPC	Fremont, Harrison, Mills, Monona, Montgomery, Page and 3 more	6 hr
Jun 14, 3:52 PM CDT	Mesoscale Discussion	SPC	Lyon	113 min
Jun 13, 7:46 PM CDT	Mesoscale Discussion	SPC	Chase, Cheyenne, Deuel, Dundy, Hayes, Hitchcock and 3 more	59 min
Jun 14, 2:38 PM CDT	Mesoscale Discussion	SPC	Adams, Buffalo, Dawson, Franklin, Furnas, Gosper and 10 more	2 hr
Jun 14, 2:57 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Buffalo, Dawson, Franklin, Furnas, Gosper and 10 more	5 hr
Jun 14, 6:35 PM CDT	Mesoscale Discussion	SPC	Adams, Buffalo, Franklin, Furnas, Gosper, Greeley and 9 more	55 min

Nearby

Mesoscale Discussions in Nebraska, 2013 Mesoscale Discussions in Iowa, 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.