Alert archive / Nebraska / Mesoscale Discussions in 2005

Mesoscale Discussion 2272

September 24, 200540 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Sep 24, 2005, 7:43 PM CDT for 40 counties in Nebraska. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Sep 24, 2005, 7:43 PM CDT (00:43 UTC)
Expired: Sep 24, 2005, 9:15 PM CDT
In force: 92 min
Issued by: the Storm Prediction Center

All 40 counties

Antelope County, NE, Blaine County, NE, Boone County, NE, Buffalo County, NE, Butler County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dawson County, NE, Dixon County, NE, Dodge County, NE, Frontier County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Hayes County, NE, Hitchcock County, NE, Howard County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Saunders County, NE, Sherman County, NE, Stanton County, NE, Thomas County, NE, Thurston County, NE, Valley County, NE, Wayne County, NE, Wheeler County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 110 km from the middle of the area, began a volume at 00:45 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, 0.7 hours before the alert went out and 164 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: 309 J/kg
Mixed-layer CIN: -532 J/kg
Mixed-layer LCL: 1312 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 242 m²/s²
0-3 km storm-relative helicity: 345 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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
Sep 24, 10:41 PM CDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boone, Boyd, Buffalo, Burt and 29 more	64 min
Sep 25, 3:24 PM CDT	Mesoscale Discussion	SPC	Gage, Jefferson, Johnson, Lancaster, Nemaha, Otoe and 4 more	96 min
Sep 25, 3:42 PM CDT	Mesoscale Discussion	SPC	Scotts Bluff	93 min

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.