Alert archive / Kansas / Mesoscale Discussions in 2013
Mesoscale Discussion 412
The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2013, 3:00 PM CDT for 72 counties in Kansas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2013, 3:00 PM CDT (20:00 UTC)
- Expired
- Apr 9, 2013, 5:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 72 counties
Allen County, KS, Anderson County, KS, Atchison County, KS, Barber County, KS, Barton County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Dickinson County, KS, Douglas County, KS, Edwards County, KS, Elk County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Jackson County, KS, Jefferson County, KS, Jewell County, KS, Johnson County, KS, Kingman County, KS, Kiowa County, KS, Labette County, KS, Leavenworth County, KS, Lincoln County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Miami County, KS, Mitchell County, KS, Montgomery County, KS, Morris County, KS, Nemaha County, KS, Neosho County, KS, Ness County, KS, Osage County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Smith County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS
The radar
The Wichita radar (KICT), 73 km from the middle of the area, began a volume at 20:03 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 (KTOP), launched 12:00Z, 8.0 hours before the alert went out and 177 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
- 321 J/kg
- Mixed-layer CIN
- -295 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 456 m²/s²
- 0-3 km storm-relative helicity
- 453 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 8, 8:43 PM CDT | Mesoscale Discussion | SPC | Cheyenne | 62 min |
| Apr 9, 12:30 PM CDT | Mesoscale Discussion | SPC | Decatur, Graham, Norton, Phillips, Rawlins, Sheridan and 1 more | 4 hr |
| Apr 9, 5:33 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Butler, Chase, Comanche, Cowley and 18 more | 7 hr |
| Apr 9, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Clay, Cloud, Dickinson, Geary, Jackson and 11 more | 7 hr |
Nearby
Mesoscale Discussions in Kansas, 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.