Alert archive / Missouri / Mesoscale Discussions in 2020
Mesoscale Discussion 593
The Storm Prediction Center issued this mesoscale discussion at May 15, 2020, 1:06 AM CDT for 4 states. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- May 15, 2020, 1:06 AM CDT (06:06 UTC)
- Expired
- May 15, 2020, 3:00 AM CDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 104 counties
Adams County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, DeWitt County, IL, Ford County, IL, Fulton County, IL, Greene County, IL, Grundy County, IL, Iroquois County, IL, Jersey County, IL, Kankakee County, IL, Knox County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Stark County, IL, Tazewell County, IL, Woodford County, IL, Newton County, IN, Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chautauqua County, KS, Cherokee County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Chariton County, MO, City of Saint Louis, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Franklin County, MO, Gasconade County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jasper County, MO, Jefferson County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Lewis County, MO, Lincoln County, MO, Macon County, MO, Maries County, MO, Marion County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Ralls County, MO, Randolph County, MO, Saint Charles County, MO, Saint Louis County, MO, Saline County, MO, Shelby County, MO, St. Clair County, MO, Vernon County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 06:09 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
Davenport, (KDVN), launched 00:00Z, 6.1 hours before the alert went out and 293 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
- 281 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.7
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 9:38 PM CDT | Mesoscale Discussion | SPC | Henry, Knox, Mercer, Rock Island, Stark, Warren | 52 min |
| May 14, 10:58 PM CDT | Mesoscale Discussion | SPC | Adams | 2 hr |
| May 14, 11:17 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Pike | 5 hr |
| May 15, 1:40 AM CDT | Severe Thunderstorm Watch | SPC | Calhoun | 3 hr |
| May 14, 8:22 PM CDT | Mesoscale Discussion | SPC | Anderson, Atchison, Chase, Coffey, Doniphan, Douglas and 14 more | 113 min |
| May 14, 9:12 PM CDT | Mesoscale Discussion | SPC | Finney, Ford, Grant, Gray, Greeley, Hamilton and 7 more | 3 hr |
| May 15, 3:20 AM CDT | Mesoscale Discussion | SPC | Crawford, Dent, Douglas, Franklin, Gasconade, Jefferson and 12 more | 85 min |
| May 15, 4:33 AM CDT | Mesoscale Discussion | SPC | Dent, Douglas, Jefferson, Texas, Washington, Wright and 1 more | 57 min |
Nearby
Mesoscale Discussions in Missouri, 2020Mesoscale Discussions in Illinois, 2020Mesoscale Discussions in Kansas, 2020Every mesoscale discussion in 2020
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.