Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 1481
The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2011, 1:49 AM CDT for 25 counties in Kansas; 8 counties in Nebraska. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Jul 3, 2011, 1:49 AM CDT (06:49 UTC)
- Expired
- Jul 3, 2011, 3:15 AM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 33 counties
Chase County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellsworth County, KS, Geary County, KS, Harvey County, KS, Jewell County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Ottawa County, KS, Pottawatomie County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Wabaunsee County, KS, Washington County, KS, Clay County, NE, Fillmore County, NE, Gage County, NE, Jefferson County, NE, Nuckolls County, NE, Saline County, NE, Thayer County, NE, Webster County, NE
The radar
The Topeka radar (KTWX), 121 km from the middle of the area, began a volume at 06:50 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, 6.8 hours before the alert went out and 172 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
- 3339 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
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 |
|---|---|---|---|---|
| Jul 2, 8:40 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Finney, Gove, Graham, Greeley and 10 more | 2 hr |
| Jul 2, 10:46 PM CDT | Mesoscale Discussion | SPC | Barton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 27 more | 29 min |
| Jul 2, 10:56 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Butler, Chase, Clay, Cloud, Dickinson and 38 more | 6 hr |
| Jul 3, 3:00 PM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Clark, Comanche, Cowley and 14 more | 60 min |
| Jul 2, 7:48 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Dawes, Garden, Morrill, Scotts Bluff and 2 more | 117 min |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Nebraska, 2011Every mesoscale discussion in 2011
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.