Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 1784
The Storm Prediction Center issued this mesoscale discussion at Jul 29, 2011, 2:23 PM CDT for 41 counties in Kansas; 11 counties in Oklahoma; 19 counties in Texas. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2011, 2:23 PM CDT (19:23 UTC)
- Expired
- Jul 29, 2011, 4:00 PM CDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 71 counties
Allen County, KS, Anderson County, KS, Barber County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Coffey County, KS, Comanche County, KS, Cowley County, KS, Crawford County, KS, Dickinson County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Miami County, KS, Montgomery County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Pratt County, KS, Reno County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Alfalfa County, OK, Beckham County, OK, Dewey County, OK, Ellis County, OK, Grant County, OK, Harper County, OK, Kay County, OK, Major County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hemphill County, TX, Lamb County, TX, Lipscomb County, TX, Motley County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX
The radar
The Vance AFB radar (KVNX), 45 km from the middle of the area, began a volume at 19:26 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
Lamont, OK (KLMN), launched 12:00Z, 7.4 hours before the alert went out and 93 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
- 139 J/kg
- Mixed-layer CIN
- -265 J/kg
- Mixed-layer LCL
- 1828 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -42 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Jul 28, 10:08 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Clay, Cloud, Doniphan, Ellis and 28 more | 3 hr |
| Jul 29, 3:13 PM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 7 more | 3 hr |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Texas, 2011Mesoscale Discussions in Oklahoma, 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.