Alert archive / Nebraska / Mesoscale Discussions in 2014

Mesoscale Discussion 1792

October 2, 20147 counties in Kansas; 13 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Oct 2, 2014, 3:02 AM CDT for 7 counties in Kansas; 13 counties in Nebraska. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: Oct 2, 2014, 3:02 AM CDT (08:02 UTC)
Expired: Oct 2, 2014, 5:00 AM CDT
In force: 118 min
Issued by: the Storm Prediction Center

Counties Clay County, KS, Cloud County, KS, Jewell County, KS, Mitchell County, KS, Ottawa County, KS, Republic County, KS, Washington County, KS, Clay County, NE, Fillmore County, NE, Gage County, NE, Hamilton County, NE, Jefferson County, NE, Lancaster County, NE, Merrick County, NE, Nuckolls County, NE, Polk County, NE, Saline County, NE, Seward County, NE, Thayer County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 51 km from the middle of the area, began a volume at 08:04 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 00:00Z, 8.0 hours before the alert went out and 179 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: 1248 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 904 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: -70 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: -0.4
Supercell composite: -2.9

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
Oct 1, 9:20 PM CDT	Mesoscale Discussion	SPC	Anderson, Douglas, Franklin, Jefferson, Johnson, Leavenworth and 3 more	25 min
Oct 1, 9:52 PM CDT	Severe Thunderstorm Watch	SPC	Bourbon, Linn, Miami	6 hr
Oct 1, 9:59 PM CDT	Mesoscale Discussion	SPC	Decatur, Ellis, Gove, Graham, Lane, Ness and 9 more	2 hr
Oct 1, 11:55 PM CDT	Mesoscale Discussion	SPC	Douglas, Franklin, Johnson, Leavenworth, Linn, Miami and 1 more	95 min
Oct 1, 11:59 PM CDT	Severe Thunderstorm Watch	SPC	Jewell, Mitchell, Osborne, Phillips, Rooks, Smith	5 hr
Oct 2, 2:33 AM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 3 more	117 min
Oct 2, 6:59 AM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Clay, Dickinson, Doniphan, Geary and 10 more	61 min
Oct 2, 8:00 AM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Brown, Butler, Chase, Chautauqua and 34 more	7 hr
Oct 2, 12:20 PM CDT	Severe Thunderstorm Watch	SPC	Bourbon, Cherokee, Crawford	8 hr
Oct 2, 3:16 PM CDT	Mesoscale Discussion	SPC	Cherokee	59 min

Nearby

Mesoscale Discussions in Nebraska, 2014 Mesoscale Discussions in Kansas, 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.