Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 1271
The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2011, 11:12 PM CDT for 51 counties in Kansas; 9 counties in Missouri. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2011, 11:12 PM CDT (04:12 UTC)
- Expired
- Jun 18, 2011, 12:45 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 60 counties
Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Clay County, KS, Coffey County, KS, Crawford County, KS, Dickinson County, KS, Douglas County, KS, Edwards County, KS, Elk County, KS, Finney County, KS, Ford County, KS, Franklin County, KS, Geary County, KS, Gray County, KS, Greenwood County, KS, Harvey County, KS, Haskell County, KS, Hodgeman County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Kiowa County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Miami County, KS, Morris County, KS, Neosho County, KS, Osage County, KS, Ottawa County, KS, Pawnee County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Stafford County, KS, Wabaunsee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Cass County, MO, Cedar County, MO, Henry County, MO, Jackson County, MO, Johnson County, MO, St. Clair County, MO, Vernon County, MO
The radar
The Wichita radar (KICT), 71 km from the middle of the area, began a volume at 04:13 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 00:00Z, 4.2 hours before the alert went out and 168 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
- 2689 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1529 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 6.4
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 |
|---|---|---|---|---|
| Jun 17, 8:19 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Atchison, Barton, Bourbon, Brown and 67 more | 7 hr |
| Jun 17, 8:27 PM CDT | Mesoscale Discussion | SPC | Finney, Greeley, Hamilton, Kearny, Logan, Scott and 2 more | 93 min |
| Jun 18, 2:07 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Barton, Bourbon, Brown and 49 more | 53 min |
| Jun 18, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Greeley, Sherman, Wallace | 7 hr |
| Jun 18, 3:34 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 10 more | 116 min |
| Jun 18, 5:15 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Gove, Greeley, Hamilton, Kearny and 8 more | 90 min |
| Jun 18, 5:36 PM CDT | Severe Thunderstorm Watch | SPC | Decatur, Edwards, Ellis, Finney, Ford, Gove and 20 more | 7 hr |
| Jun 18, 6:03 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 20 more | 10 hr |
| Jun 18, 2:44 AM CDT | Severe Thunderstorm Watch | SPC | Audrain, Benton, Boone, Callaway, Camden, Carroll and 40 more | 5 hr |
| Jun 18, 5:39 AM CDT | Mesoscale Discussion | SPC | Audrain, Bollinger, Boone, Callaway, Camden, Cape Girardeau and 36 more | 66 min |
| Jun 18, 9:39 AM CDT | Severe Thunderstorm Watch | SPC | Dunklin, Pemiscot | 7 hr |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Missouri, 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.