Alert archive / Missouri / Mesoscale Discussions in 2015
Mesoscale Discussion 1101
The Storm Prediction Center issued this mesoscale discussion at Jun 21, 2015, 9:42 AM CDT for Calhoun County, Jersey County, Illinois; 8 counties in Kansas; 38 counties in Missouri. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2015, 9:42 AM CDT (14:42 UTC)
- Expired
- Jun 21, 2015, 11:45 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 48 counties
Calhoun County, IL, Jersey County, IL, Atchison County, KS, Doniphan County, KS, Douglas County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Miami County, KS, Wyandotte County, KS, Audrain County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Callaway County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Franklin County, MO, Gasconade County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Pike County, MO, Platte County, MO, Randolph County, MO, Ray County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Warren County, MO
The radar
The Pleasant Hill radar (KEAX), 91 km from the middle of the area, began a volume at 14:43 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
Topeka, KS (KFOE), launched 12:00Z, 2.7 hours before the alert went out and 199 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
- 1785 J/kg
- Mixed-layer CIN
- -241 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 20, 10:12 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 11 more | 63 min |
| Jun 20, 10:13 PM CDT | Severe Thunderstorm Watch | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 7 more | 4 hr |
| Jun 20, 11:32 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 6 more | 58 min |
| Jun 21, 2:58 AM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey | 2 hr |
| Jun 21, 12:12 PM CDT | Severe Thunderstorm Watch | SPC | Calhoun, Pike | 5 hr |
| Jun 21, 3:56 PM CDT | Mesoscale Discussion | SPC | Clinton, Franklin, Hamilton, Hardin, Jackson, Jefferson and 10 more | 2 hr |
| Jun 21, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Franklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson and 7 more | 5 hr |
| Jun 21, 3:03 PM CDT | Mesoscale Discussion | SPC | Doniphan | 87 min |
| Jun 21, 6:44 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Daviess, Gentry, Grundy, Harrison and 6 more | 91 min |
Nearby
Mesoscale Discussions in Missouri, 2015Mesoscale Discussions in Kansas, 2015Mesoscale Discussions in Illinois, 2015Every mesoscale discussion in 2015
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.