Alert archive / Nebraska / Mesoscale Discussions in 2005

Mesoscale Discussion 2082

August 25, 200514 counties in Kansas; 31 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Aug 25, 2005, 11:28 PM CDT for 14 counties in Kansas; 31 counties in Nebraska. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Aug 25, 2005, 11:28 PM CDT (04:28 UTC)
Expired: Aug 26, 2005, 1:00 AM CDT
In force: 92 min
Issued by: the Storm Prediction Center

All 45 counties

Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Smith County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Antelope County, NE, Blaine County, NE, Brown County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Phelps County, NE, Red Willow County, NE, Rock County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Wheeler County, NE

The radar

The Grand Island radar (KUEX), 156 km from the middle of the area, began a volume at 04:27 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.5 hours before the alert went out and 83 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: 2370 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 1149 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.2

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
Aug 25, 7:37 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Logan, Rawlins, Sheridan, Sherman and 2 more	83 min
Aug 25, 8:30 PM CDT	Severe Thunderstorm Watch	SPC	Decatur, Gove, Graham, Logan, Norton, Phillips and 6 more	6 hr
Aug 26, 2:18 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 14 more	2 hr
Aug 26, 4:40 PM CDT	Severe Thunderstorm Watch	SPC	Chautauqua, Cherokee, Crawford, Elk, Greenwood, Labette and 4 more	6 hr
Aug 25, 8:06 PM CDT	Mesoscale Discussion	SPC	Antelope, Boyd, Brown, Holt, Keya Paha, Knox and 1 more	54 min

Nearby

Mesoscale Discussions in Nebraska, 2005 Mesoscale Discussions in Kansas, 2005 Every mesoscale discussion in 2005

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.