Alert archive / Nebraska / Mesoscale Discussions in 2005

Mesoscale Discussion 1473

June 25, 200528 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2005, 7:44 PM CDT for 28 counties in Nebraska. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 25, 2005, 7:44 PM CDT (00:44 UTC)
Expired: Jun 25, 2005, 9:45 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 28 counties

Adams County, NE, Arthur County, NE, Buffalo County, NE, Chase County, NE, Custer County, NE, Dawson County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Howard County, NE, Kearney County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE

The radar

The North Platte radar (KLNX), 121 km from the middle of the area, began a volume at 00:43 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, 0.7 hours before the alert went out and 306 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: 3029 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1252 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 301 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.4

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 25, 9:23 PM CDT	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Cheyenne, Dawes, Deuel and 9 more	97 min
Jun 26, 3:59 PM CDT	Mesoscale Discussion	SPC	Arthur, Box Butte, Chase, Cherry, Dawes, Deuel and 14 more	2 hr

Nearby

Mesoscale Discussions in Nebraska, 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.