Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 817
The Storm Prediction Center issued this mesoscale discussion at May 19, 2011, 5:42 PM CDT for 43 counties in Kansas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 19, 2011, 5:42 PM CDT (22:42 UTC)
- Expired
- May 19, 2011, 7:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 43 counties
Barber County, KS, Barton County, KS, Clark County, KS, Clay County, KS, Cloud County, KS, Comanche County, KS, Decatur County, KS, Dickinson County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Graham County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Jewell County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Sheridan County, KS, Smith County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS
The radar
The Dodge City radar (KDDC), 126 km from the middle of the area, began a volume at 22:44 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 10.7 hours before the alert went out and 121 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
- 1795 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 572 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 370 m²/s²
- 0-3 km storm-relative helicity
- 324 m²/s²
- Significant tornado parameter
- 4.4
- Supercell composite
- 15.9
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 |
|---|---|---|---|---|
| May 18, 10:25 PM CDT | Mesoscale Discussion | SPC | Allen, Barton, Butler, Chase, Chautauqua, Cheyenne and 60 more | 2 hr |
| May 19, 1:12 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Comanche, Cowley, Dickinson and 26 more | 63 min |
| May 19, 1:43 PM CDT | Tornado Watch | SPC | Barber, Barton, Butler, Chase, Clark, Clay and 43 more | 7 hr |
| May 19, 2:24 PM CDT | Mesoscale Discussion | SPC | Finney, Grant, Greeley, Hamilton, Haskell, Kearny and 7 more | 66 min |
| May 19, 3:44 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Clark, Clay, Cloud and 40 more | 61 min |
| May 19, 6:38 PM CDT | Mesoscale Discussion | SPC | Marshall, Nemaha, Washington | 97 min |
Nearby
Mesoscale Discussions in Kansas, 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.