Alert archive / Nebraska / Mesoscale Discussions in 2006
Mesoscale Discussion 449
The Storm Prediction Center issued this mesoscale discussion at Apr 6, 2006, 8:29 PM CDT for 34 counties in Kansas; 55 counties in Nebraska; 4 counties in South Dakota. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2006, 8:29 PM CDT (01:29 UTC)
- Expired
- Apr 6, 2006, 10:00 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 93 counties
Allen County, KS, Anderson County, KS, Brown County, KS, Chase County, KS, Chautauqua County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Jackson County, KS, Jefferson County, KS, Labette County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Neosho County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS, Adams County, NE, Antelope County, NE, Boone County, NE, Boyd County, NE, Brown County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Holt County, NE, Howard County, NE, Jefferson County, NE, Johnson County, NE, Keya Paha County, NE, Knox County, NE, Lancaster County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Rock County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thayer County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Wheeler County, NE, York County, NE, Bon Homme County, SD, Clay County, SD, Union County, SD, Yankton County, SD
The radar
The Topeka radar (KTWX), 72 km from the middle of the area, began a volume at 01:32 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
Topeka, KS (KTOP), launched 00:00Z, 1.5 hours before the alert went out and 108 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.
- Mixed-layer CAPE
- 765 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 1356 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:12 PM CDT | Mesoscale Discussion | SPC | Doniphan, Leavenworth, Wyandotte | 63 min |
| Apr 6, 7:43 PM CDT | Tornado Watch | SPC | Atchison, Doniphan, Johnson, Leavenworth, Wyandotte | 5 hr |
| Apr 6, 9:51 PM CDT | Mesoscale Discussion | SPC | Doniphan, Leavenworth, Wyandotte | 114 min |
| Apr 6, 10:21 PM CDT | Mesoscale Discussion | SPC | Linn, Miami | 84 min |
Nearby
Mesoscale Discussions in Nebraska, 2006Mesoscale Discussions in Kansas, 2006Mesoscale Discussions in South Dakota, 2006Every mesoscale discussion in 2006
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.