Alert archive / Missouri / Mesoscale Discussions in 2013
Mesoscale Discussion 491
The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2013, 9:50 AM CDT for 23 counties in Kansas; 40 counties in Missouri; 4 counties in Oklahoma. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Apr 17, 2013, 9:50 AM CDT (14:50 UTC)
- Expired
- Apr 17, 2013, 10:45 AM CDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 67 counties
Allen County, KS, Anderson County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Osage County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Lawrence County, MO, Livingston County, MO, Macon County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Pettis County, MO, Platte County, MO, Polk County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Nowata County, OK, Ottawa County, OK, Washington County, OK
The radar
The Pleasant Hill radar (KEAX), 87 km from the middle of the area, began a volume at 14:52 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, 2.8 hours before the alert went out and 139 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
- 8 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 423 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 667 m²/s²
- 0-3 km storm-relative helicity
- 666 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
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 |
|---|---|---|---|---|
| Apr 17, 12:41 AM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Clark, Comanche, Dickinson and 17 more | 94 min |
| Apr 17, 11:11 AM CDT | Tornado Watch | SPC | Bourbon, Cherokee, Crawford, Johnson, Leavenworth, Linn and 2 more | 11 hr |
| Apr 17, 1:09 PM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chautauqua, Cowley, Elk, Greenwood and 8 more | 96 min |
| Apr 17, 1:50 PM CDT | Tornado Watch | SPC | Allen, Anderson, Chautauqua, Coffey, Cowley, Douglas and 12 more | 8 hr |
| Apr 17, 3:38 PM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Johnson, Linn, Miami and 1 more | 97 min |
| Apr 17, 6:02 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 16 more | 88 min |
| Apr 16, 8:44 PM CDT | Mesoscale Discussion | SPC | Saint Louis, City of Saint Louis | 2 hr |
| Apr 17, 8:49 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Buchanan, Caldwell, Carroll, Chariton and 25 more | 56 min |
| Apr 17, 9:14 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Andrew, Clark, Daviess, DeKalb, Gentry and 11 more | 10 hr |
| Apr 17, 1:33 PM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Clark, Daviess, DeKalb, Gentry and 11 more | 57 min |
| Apr 17, 4:19 PM CDT | Mesoscale Discussion | SPC | Scotland | 26 min |
| Apr 17, 1:21 PM CDT | Tornado Watch | SPC | Blaine, Caddo, Canadian, Carter, Cherokee, Cleveland and 45 more | 10 hr |
| Apr 17, 5:23 PM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Carter, Cherokee, Cleveland, Coal and 37 more | 97 min |
| Apr 17, 6:30 PM CDT | Mesoscale Discussion | SPC | Cleveland, Comanche, Grady, McClain | 90 min |
Nearby
Mesoscale Discussions in Missouri, 2013Mesoscale Discussions in Kansas, 2013Mesoscale Discussions in Oklahoma, 2013Every mesoscale discussion in 2013
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.