Alert archive / Missouri / Mesoscale Discussions in 2026
Mesoscale Discussion 482
The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2026, 5:10 PM CDT for 4 counties in Kansas; 34 counties in Missouri; Ottawa County, Oklahoma. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 17, 2026, 5:10 PM CDT (22:10 UTC)
- Expired
- Apr 17, 2026, 7:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 130...131
All 39 counties
Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Pettis County, MO, Polk County, MO, Randolph County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Ottawa County, OK
The radar
The Pleasant Hill radar (KEAX), 66 km from the middle of the area, began a volume at 22:10 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 12:00Z, 10.2 hours before the alert went out and 165 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
- 1163 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 920 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
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 |
|---|---|---|---|---|
| Apr 17, 12:42 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Barber, Bourbon, Brown and 42 more | 3 hr |
| Apr 17, 1:40 PM CDT | Tornado Watch | SPC | Allen, Anderson, Atchison, Barber, Bourbon, Brown and 34 more | 7 hr |
| Apr 17, 3:31 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Butler, Chase and 21 more | 89 min |
| Apr 17, 5:38 PM CDT | Mesoscale Discussion | SPC | Chautauqua, Cowley | 2 hr |
| Apr 17, 12:40 PM CDT | Tornado Watch | SPC | Clark, Scotland | 9 hr |
| Apr 17, 3:04 PM CDT | Mesoscale Discussion | SPC | Audrain, Callaway, Franklin, Gasconade, Jefferson, Lewis and 12 more | 56 min |
| Apr 17, 3:31 PM CDT | Tornado Watch | SPC | Audrain, Boone, Callaway, Cole, Franklin, Gasconade and 16 more | 8 hr |
| Apr 17, 6:25 PM CDT | Mesoscale Discussion | SPC | Clark | 2 hr |
Nearby
Mesoscale Discussions in Missouri, 2026Mesoscale Discussions in Kansas, 2026Mesoscale Discussions in Oklahoma, 2026Every mesoscale discussion in 2026
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.