Alert archive / Missouri / Severe Thunderstorm Watches in 2026
Severe Thunderstorm Watch 366
The Storm Prediction Center issued this severe thunderstorm watch at Jun 21, 2026, 5:40 PM CDT for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2026, 5:40 PM CDT (22:40 UTC)
- Expired
- Jun 22, 2026, 1:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 64 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Fulton County, AR, Izard County, AR, Marion County, AR, Randolph County, AR, Sharp County, AR, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Elk County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Barry County, MO, Barton County, MO, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Cedar County, MO, Christian County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Iron County, MO, Jasper County, MO, Jefferson County, MO, Laclede County, MO, Lawrence County, MO, Madison County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Shannon County, MO, Stoddard County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Webster County, MO, Wright County, MO, Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Ottawa County, OK, Rogers County, OK, Washington County, OK
The radar
The Springfield radar (KSGF), 22 km from the middle of the area, began a volume at 22:43 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:44 PM CDT | Severe Thunderstorm Warning | ICT | Montgomery | 61 min |
| Jun 21, 6:14 PM CDT | Severe Thunderstorm Warning | ICT | Labette, Montgomery | 61 min |
| Jun 21, 11:47 PM CDT | Severe Thunderstorm Warning | PAH | Ripley | 43 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.7 hours before the alert went out and 31 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
- 939 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 793 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 7.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 10:06 AM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Clay, Fulton, Marion, Randolph and 1 more | 114 min |
| Jun 20, 7:08 PM CDT | Mesoscale Discussion | SPC | Gove, Lane, Logan, Scott, Wichita | 37 min |
| Jun 20, 7:22 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Chase, Clay, Cloud, Dickinson, Edwards and 26 more | 8 hr |
| Jun 20, 8:29 PM CDT | Mesoscale Discussion | SPC | Barton, Edwards, Ellis, Ellsworth, Finney, Ford and 17 more | 91 min |
| Jun 20, 9:42 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Clark, Comanche, Cowley and 33 more | 63 min |
| Jun 20, 9:59 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Clark, Comanche, Finney, Ford, Grant and 14 more | 6 hr |
| Jun 20, 11:24 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Chase, Clark, Clay, Cloud and 33 more | 96 min |
| Jun 20, 11:47 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Chautauqua, Coffey and 21 more | 58 min |
| Jun 21, 12:02 AM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Atchison, Bourbon, Butler, Chautauqua and 23 more | 6 hr |
| Jun 21, 2:36 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 24 more | 114 min |
| Jun 21, 5:27 AM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 10 more | 63 min |
| Jun 21, 12:51 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Rawlins, Sherman, Thomas | 114 min |
| Jun 21, 1:46 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more | 7 hr |
| Jun 21, 3:01 PM CDT | Mesoscale Discussion | SPC | Barber, Chautauqua, Cherokee, Comanche, Cowley, Crawford and 8 more | 119 min |
| Jun 21, 3:33 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Rawlins, Sherman, Thomas, Wallace | 117 min |
| Jun 21, 5:19 PM CDT | Mesoscale Discussion | SPC | Barton, Edwards, Ellis, Finney, Ford, Graham and 18 more | 56 min |
| Jun 21, 5:21 PM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 4 more | 84 min |
| Jun 21, 6:07 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Clark, Comanche, Cowley, Edwards and 27 more | 7 hr |
| Jun 21, 1:28 PM CDT | Tornado Watch | SPC | Perry, Sainte Genevieve | 9 hr |
| Jun 21, 6:12 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Custer, Dewey, Ellis, Garfield and 6 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2026Severe Thunderstorm Watches in Arkansas, 2026Severe Thunderstorm Watches in Kansas, 2026Every severe thunderstorm watch 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.