Alert archive / Kansas / Mesoscale Discussions in 2020
Mesoscale Discussion 340
The Storm Prediction Center issued this mesoscale discussion at Apr 11, 2020, 8:03 PM CDT for 35 counties in Kansas; 12 counties in Missouri. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Apr 11, 2020, 8:03 PM CDT (01:03 UTC)
- Expired
- Apr 11, 2020, 9:00 PM CDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 47 counties
Anderson County, KS, Atchison County, KS, Brown County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Kingman County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Miami County, KS, Morris County, KS, Osage County, KS, Pottawatomie County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Wabaunsee County, KS, Woodson County, KS, Wyandotte County, KS, Andrew County, MO, Buchanan County, MO, Caldwell County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Jackson County, MO, Lafayette County, MO, Platte County, MO, Ray County, MO
The radar
The Topeka radar (KTWX), 37 km from the middle of the area, began a volume at 01:04 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 nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.1 hours before the alert went out and 65 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
- 934 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 2123 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
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Mesoscale Discussions in Kansas, 2020Mesoscale Discussions in Missouri, 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.