Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 1897
The Storm Prediction Center issued this mesoscale discussion at Aug 8, 2011, 12:46 AM CDT for 13 counties in Kansas; 13 counties in Missouri. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2011, 12:46 AM CDT (05:46 UTC)
- Expired
- Aug 8, 2011, 1:45 AM CDT
- In force
- 59 min
- Issued by
- the Storm Prediction Center
All 26 counties
Allen County, KS, Anderson County, KS, Bourbon County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Franklin County, KS, Labette County, KS, Linn County, KS, Miami County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Dade County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Polk County, MO, St. Clair County, MO, Vernon County, MO
The radar
The Pleasant Hill radar (KEAX), 106 km from the middle of the area, began a volume at 05:49 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
Springfield, MO (KSGF), launched 00:00Z, 5.8 hours before the alert went out and 136 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
- 1238 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 2423 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 |
|---|---|---|---|---|
| Aug 7, 7:13 PM CDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Cowley, Edwards, Ford and 11 more | 3 hr |
| Aug 7, 7:49 PM CDT | Severe Thunderstorm Watch | SPC | Jewell, Mitchell, Osborne, Smith | 7 hr |
| Aug 7, 10:45 PM CDT | Mesoscale Discussion | SPC | Anderson, Clay, Cloud, Coffey, Dickinson, Douglas and 28 more | 2 hr |
| Aug 7, 11:08 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Brown, Chase, Clay, Cloud and 25 more | 5 hr |
| Aug 8, 1:09 AM CDT | Severe Thunderstorm Watch | SPC | Bourbon, Crawford, Linn, Miami | 3 hr |
| Aug 8, 4:52 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more | 6 hr |
| Aug 8, 6:27 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Clark, Comanche, Decatur, Edwards, Ellis and 31 more | 2 hr |
| Aug 8, 6:44 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Comanche, Edwards, Ellis, Finney, Ford and 18 more | 4 hr |
| Aug 7, 8:27 PM CDT | Mesoscale Discussion | SPC | Barry, Bollinger, Butler, Cape Girardeau, Carter, Christian and 26 more | 2 hr |
| Aug 7, 9:18 PM CDT | Severe Thunderstorm Watch | SPC | Dunklin, Mississippi, New Madrid, Pemiscot | 4 hr |
| Aug 7, 10:54 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Carter, Dunklin, Howell, Mississippi and 8 more | 96 min |
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.